Jobs

Company: Formal

Location: Remote

Type: FULL_TIME

Salary: $100k - $250k + Equity

At Formal, we’re rethinking serverless from scratch: we’re building a new computing stack for instant, globally available, truly elastic, soundly isolated execution. We leverage formal methods and languages to build OS interfaces with low overhead, formally verified isolation without containers or VMs. Our immediate goal is to write a new programming language to replace eBPF and build the world's first serverless networking infrastructure. We are a 5-person, VC-funded team with PhDs from Stanford, UW, OSU, and Brown, advised by professors from MIT and UWaterloo. We are currently hiring for four positions: Staff Software Engineer, Formal Verification Engineer, Software Engineer, Formal Methods PhD Intern.

Company: Humaans

Location: London (Hybrid, 3 days/week)

Type: FULL_TIME

Co-founder of Humaans here. We’re building a best in class HR platform that automates people operations end-to-end for globally scaling companies. What you’ll work on: Agentic AI for end to end automation and AI functionality all over the product, Modern client rich UIs including workflow builders, drag-and-drop task managers, collaborative spreadsheets, Realtime systems via WebSockets, Feathers.js, zero sync engine, Scaling our data and AI architecture to fly for customers with 1,000s of employees. Why we like it here: Quality-first culture - design, performance, and DX matter, Small, senior team with ownership from product definition to release, Backed by great partners (YC and execs from Slack, Shopify, Figma, LinkedIn, Stripe, Intercom, Notion, etc.). Our stack: TypeScript, React, Node.js, Postgres, Redis, Monorepo with Turborepo, pnpm, GitHub Actions, Kube and CloudRun on GCP.

Company: Zeven

Location: Zurich (Switzerland)

Type: FULL_TIME

Salary: Competitive salary + stock options

We're a newly-founded and well-funded startup that is seeking to revolutionize the sports industry with AI-powered solutions. Our mission is to unlock human potential and redefine the sports experience through innovation and technology. We are looking for an experienced Senior Backend Developer and sports enthusiast to join our on-site team in Zurich, Switzerland. This is a hands-on, high impact role. We use Typescript for web, Python for ML, PostgreSQL, React + TanStack, AWS and SST. We are offering full-time employment with a competitive package: • Competitive salary and stock options. • Pension plan bonus and 25 days of paid vacation plus public holidays. • Charming office next to the lake of Zurich with fully-equipped kitchen. • Top-notch equipment (MacBook Pro laptops, standing desks, etc.). • We love to organize company outings and sport events. If you're a motivated and experienced backend engineer who is crazy about sports and looking for a new challenge, we'd love to hear from you!

Company: Saris AI

Location: Montreal, Canada

Type: FULL_TIME

Hi HN, we are an YC alum founding team rethinking back-office workflows for banks and credit unions. We're tackling a $100 billion problem with the kind of automation problems that require long-context reasoning, tool orchestration across many critical systems, and strict compliance loops: the ones without known answers. We've shipped real agents that handle real customer workflows in production. With a growing customer base and live deployments, we're scaling up fast and looking for deeply technical builders who want to have outsized impact early.

Company: Polar Sky

Location: Bay Area/Seattle

Type: FULL_TIME

We're a well-funded, pre-seed cybersecurity startup focused on data security. I'm looking for a founding AI lead with experience in fine-tuning LLMs (expertise around RL + reasoning models a big plus). This person would own the full AI stack from data to training to eval to test-time compute. If you've always thought about starting a company, but for whatever reason (funding, life, idea), this is a great opportunity to be part of the founding team. We're 2 people right now. You enjoy understanding customer problems and their use cases, and then figuring out the best solution (sometimes technical, sometimes not) to their problems. You want to help figure out what a company looks like in this AI era. You enjoy teaching and sharing knowledge.

Company: iGent AI

Location: London, UK

Type: FULL_TIME

Salary: Big Tech salary + options.

Co-founder of iGent AI here. We build agentic systems for large-scale, industrial projects, and an agentic cloud. Proof: our agent built a Redis-compatible database in Rust, with no human coding, in 70 man-hours. Why join: Small, senior team: ex-DeepMind, OpenAI, Microsoft Research, Amazon, and Cambridge University. Hard problems across distributed systems, OS/sandboxing, ML and LLM inference/post‑training. Real users; ship to prod. Open roles (all Senior/Staff; hands-on): Full-Stack - design and build the new agentic interface, with top designer; Agent Infrastructure - branching sandboxes, filesystems, orchestration, observability; Backend / Eng Lead - build cloud from first principles; distribution, sync, load-balancing, events; LLM inference post-training - long context tech, RL, vLLM, performance; Devrel GTM – live-developing, tutorials, OSS/community, hackathons - drive adoption. You might be a fit if you have: 5+ years building and operating production systems (or exceptional evidence). Own 0→1 projects; comfortable reading generating lots of code. Public work (OSS/papers/blogs/products) or strong portfolio.

Company: Revere Defense Technologies

Location: San Francisco (Dogpatch)

Type: FULL_TIME

Salary: $120k–220k + equity + benefits

We’re building an autonomous maritime network — think distributed systems in the ocean—extending resilient comms, sensing and compute to the edge in high-threat remote environments. We are looking for Software Engineers, Electrical Engineers, and Marine/Mechanical Engineers to ship code to robots, test on the water, move fast, own big surface area, and work directly with military operators. Eligibility for a TS/SCI security clearance is a plus.

Company: JustWatch

Location: Berlin

Type: FULL_TIME

At JustWatch, we’re focus on being the best at marketing in the global entertainment industry. Our Martech team develops internal tools that help us achieve that goal, creating automations to help our own campaign managers inside the company. You’ll work on our Business Dashboard (Next.js), leading projects end-to-end while collaborating with designers, stakeholders, and other dev teams. We’re looking for a frontend engineer who enjoys solving problems, thrives on collaboration and focus on bringing value to its users. In return, we offer a culture of trust and ownership, where you can make decisions without bureaucracy and really focus on the value you are delivering. Based in Berlin, we have an awesome office that you don’t need to go, but you will want to.

Company: Stealth Solar Tech Startup

Location: Remote (EU-friendly)

Type: FULL_TIME

We are a well-funded stealth startup building a B2C platform to radically reform the U.S. residential solar industry. Our mission is to combat pervasive consumer distrust and inefficiencies by empowering homeowners with a transparent, high-fidelity, and interactive 3D solar design tool. We are looking for a Senior 2D/3D Computer Vision Engineer to build the core technology that makes our platform possible. The central challenge is to automatically generate clean, geometrically accurate, and simplified 3D roof models from raw aerial Digital Surface Models (DSM) and RGB data. As the owner of this domain, you will ideally define the process, build the models, and ship to production.

Company: Langdock

Location: Berlin, Germany

Type: FULL_TIME

Salary: Product Engineer (Full-stack) | €66K – €102K | Equity | €10K – €30K Bonus; Infrastructure Engineer | €66K – €102K | Equity | €10K – €30K Bonus; AI Associate | €66K – €75K | Equity | €10K – €15K Bonus

We're Langdock, and we've built the LLM platform that 1,300+ companies trust to power AI features for 100,000+ users. After hitting $9M ARR with 10x year-over-year growth, we're expanding our Berlin team to shape the next chapter of conversational AI.

Company: Uncountable

Location: NY, SF, London, Munich

Type: FULL_TIME

Salary: $120k - $220k + Equity

Uncountable accelerates R D for industrial scientists across leading materials, chemicals, and life sciences organizations. With our SaaS solution, our customers get better products to the market in half the time. Uncountable was founded by MIT and Stanford engineers and has been profitable since 2016. Our team has grown from 50 to 100 over the last two years. Uncountable is looking for engineers who can spearhead the development of the Uncountable Web Platform. The position is heavily product-driven and comes with challenges across the stack. Summer internships and working student positions are also available.

Company: V7

Location: London or New York

You're not just a growth marketer. You’re a full-stack creative operator. You’ve probably done things like: Run playbooks that didn’t exist yet, gotten products featured on Times Square billboards and Reddit threads, built shareable mini-tools that turned into full-on acquisition channels, sent physical mailers that turned into million-dollar pipeline, landed your company on 10+ podcasts in a quarter, taken a product from 0–1m+ MAUs or scaled growth to $5m–$20m ARR, built acquisition loops from scratch, know how to make technical content go viral, are a creative thinker with deep operational range, can juggle many ideas, experiments, and channels at once.

Company: 9 Mothers

Location: Austin TX

Type: FULL_TIME

Building AI-driven turrets that stop hostile drones. We need sharp, hands-on engineers: Embedded Robotics: Python on Jetson, CAN (+ EtherCAN / EtherCAT) drive buses, high-speed cameras, real-time PID/servo control, ROS, TensorRT Computer Vision / ML: detection + tracking, transformer-based visual models, TensorRT tuning on Jetson US persons only (e.g. green-card, citizens). Shoot your résumé / GitHub and a quick note on why you're good fit to [email protected]

Company: Konvu

Location: Paris, France

Type: FULL_TIME

At Konvu, we’re on a mission to make security invisible. As we move towards a future dominated by code automatically generated, tested, and deployed by AIs, we need a new paradigm for application security. Vulnerabilities must be automatically detected, prioritized, and remediated. Behind Konvu are founders with deep roots in the security industry. As early employees at Sqreen YC W18, a notable security startup acquired by Datadog, we have firsthand experience in driving security solutions from concept to global impact.

Company: Neuralwatt

Location: REMOTE (US – Seattle/Denver/Boulder metros only)

Type: FULL_TIME

Salary: $180k–$220k DOE

Energy is the #1 constraint in new datacenter buildouts. Neuralwatt is reshaping AI compute around energy efficiency to maximize revenue per kilowatt. We’re a VC-backed, early-stage startup building optimization tools for AI, HPC, and datacenter workloads. We're hiring 2 experienced founding engineers to help architect our core systems and work directly with customers. What you'll do: Technically: Architect critical datacenter infrastructure - Write Rust and Python - Measure real-world energy impact - Design state-of-the-art AI-led optimizations Non-technically: Help build the business and win customers - Present at conferences - Develop marketing and company materials Requirements: - 5–10+ years of software development experience - Thrive in ambiguous, outcome-driven environments - Experience working closely with customers - Clear communication and strong leadership - Familiarity with LLM/AI infrastructure.

Company: Gigs

Location: Multiple US & EU Locations (SF, NY, Berlin, London)

Type: FULL_TIME

At Gigs, we're building the operating system for mobile services - a platform that enables tech companies to seamlessly embed connectivity into their products. Klarna's US mobile plan is powered by Gigs! We are looking for exceptional candidates, looking to do the best work of their careers, across a wide range of roles.

Company: Stellar Science

Location: Albuquerque NM, Washington DC (Tysons VA), Dayton OH

Type: FULL_TIME

We're a small scientific software development company that develops custom scientific and engineering analysis applications in domains including: space situational awareness (monitoring the locations, health and status of on-orbit satellites), image simulation, high power microwave systems, modeling and simulation, laser systems modeling, AI/ML including physics-informed neural networks (PINN), human body thermoregulation, computer vision and image processing, high performance computing (HPC), computer aided design (CAD), and more. All exciting applications and no CRUD. We emphasize high quality code and lightweight processes that free software engineers to be productive. Experience: Other than interns, we currently require a Bachelors degree in physics, engineering, math, computer science, or a related field, plus preferably 3+ years of work experience or a Masters or PhD in lieu of work experience. (Roughly 30% of our staff have PhDs.) Technologies: Mostly C++23, Qt 6.9, CMake, git, OpenGL, CUDA, Boost, Jenkins. Windows and Linux, msvc/gcc/clang/clangcl. AI/ML and other projects use Python, some projects use Java or Javascript/Typescript/React.

Company: DuckDuckGo

Location: Remote

Type: FULL_TIME

Salary: $178,500 USD + equity

We are looking for candidates that are excited to join us on a mission to raise the standard of trust online. All of our roles are fully-remote, except where specific locations are noted.

Company: Proton

Location: Geneva, Paris, London, Barcelona, Prague, Taipei, EU Remote

Type: FULL_TIME

We recently launched Lumo, a privacy-friendly ChatGPT alternative, by the makers of Proton Mail Proton VPN. We are looking for curious and talented people to help us grow Lumo with any of these skills: ML engineering, LLM inference, GPU infra devops, Frontend (Typescript, React), Backend (Rust, PHP). Looking for senior-level or fast-growing juniors.

Company: Rappo

Location: Remote or Onsite SF

We have been working on a personal assistant for knowledge professionals. A lot of challenges around building an advanced RAG, improving reasoning, and custom models.

Company: Beautiful.ai

Location: Remote in US CAN

Type: FULL_TIME

Salary: 225k - 250k Base Salary + Equity

Leading the enterprise revenue go-to-market strategy for a SaaS company.

Company: OneCrew

Location: San Francisco, CA

OneCrew is the leading unified platform helping paving contractors estimate accurately, manage crews effectively, and track profitability in real-time. We eliminate the costly mistakes and wasted time that come from juggling multiple disconnected systems—giving contractors a single source of truth to run their entire operation. We recently closed our Series A and are looking for highly motivated individuals to own their domain and accelerate our growth. - Engineering Manager - 3x Software Engineers (Fullstack, Frontend, Backend) - Product Manager - Growth.

Company: Komodo Health

Location: SF/NY

Type: FULL_TIME

Salary: $200-$253k + equity

Healthcare in the U.S. is a mess. Komodo Health is fixing that—with data. We’ve mapped the patient journey across the country to build the most complete picture of disease burden and treatment gaps. Our customers are pharma, payers, and health systems who actually want to do something meaningful with that information. We have an exciting product, marmot, that is AI-native, both in the interface as well as in development, and want to carefully grow high productivity teams around this offering. AI integrated with Komodo's data is giving some of the most unique, real world insights any of us has seen come out of the new LLM era. Our product was just featured on Times Square too! We are looking for highly independent individuals, who can work in a new, small, but empowered team. What will you be bringing? - Proven experience working on Agentic systems that solve real problems OR Some evidence you have the instinct Andrew Ng mentions as the differentiators of successful Agent builders. We also take full ownership of the product, so experience+readiness for fullstack development is a must. Core ML experience is not required and for this position, not relevant at all. The new LLM/Agent era is... different. Perks will include annual conference trip, periodic travel to SF/NY for on-site, Executive Coaching, etc. If this post sounds exciting, please apply at https://job-boards.greenhouse.io/komodohealth/jobs/806961600... (mention HN as the source). Please note, we can only consider applicants who are already in the US. If you wish, please also email me at [email protected] with an example of how you have figured out that instinct I mention above.

Company: Cambridge Terahertz

Location: Santa Clara, CA

Type: FULL_TIME

Cambridge Terahertz is a rapidly-growing startup with the mission of detecting weapons and saving lives by bringing airport-level security to the masses. Our full-custom silicon enables orders-of-magnitude improvements in THz phased array radar imaging, unlocking new use cases in 3d-imaging. We are one of the only companies in the world to commercialize THz technology. We've raised series A-level funding, numerous gov't contracts and are adding to our world-class team in Santa Clara with various roles across hardware and software. We are in-person first and provide generous equity and benefits.

Company: Odevo

Location: Stockholm, Sweden

Type: FULL_TIME

Odevo is a PE-backed PropTech company with 2.2 million properties under management across Europe/US. We are growing fast and recently started a DevEx function, and I need some extra help there :)

Company: Pairtu

Location: SF or remote in US timezone

Type: FULL_TIME

We're reshaping healthcare for the $60 billion Medicare market. Engineering culture is one that values learning, freedom to write code instead of overhead, fast pace, and using AI tooling both in engineering and inside our product. If you've wanted to build with an AI API or toolset this is the place to do it.

Company: P2P.org

Location: Remote / Global

Salary: Competitive pay ($ or crypto)

P2P.org is the largest institutional staking provider with $10B+ TVL and 20%+ restaking market share. Clients include Crypto.com, Ledger, BitGo, OKX, ByBit and others. We’re expanding our teams — and hiring now. Roles available include: Blockchain Analytics, Junior Analyst, Analytics Engineer, Financial Assistant.

Company: Stile Education

Location: Melbourne, Australia

Type: FULL_TIME

We’re high-performing, diverse, tight-knit team with a mission to radically improve mainstream science and maths education at schools. By creating the best lessons in the world, coupled with intuitive tools that allow teachers to take advantage of the latest pedagogies, we’ve already helped millions of students in Australia get excited about science and maths. We're looking for a bunch of new roles right now including Engineering Manager, Full Stack Staff Engineer, Platform Engineer, ML/AI Engineer, Automation Engineer, Principal+ Engineer, and Frontend Engineer.

Company: Sumble

Location: Remote

Type: FULL_TIME

Salary: Competitive salary based on experience.

Sumble is building a knowledge graph from web data focused on helping go-to-market teams. We analyze job posts and resume data to identify organizational structures, technology stacks, and key projects like GenAI initiatives and cloud migrations. Our product has strong product-market fit, early revenue, and we have happy customers. Our long-term vision is to be the primary destination for accessing high-quality web data.

Company: Moyai

Location: Amsterdam, The Netherlands

Type: FULL_TIME

Salary: 60k-80k + Equity

• Technical founding team with relevant industry experience (part of Nvidia Inception Program) • Backed by well-known European VCs (SpeedInvest+Galion.exe) • Building agentic advanced analytics and fine-tuning analytical reasoning models Ideal candidate: • Demonstrated shipping ability with past projects roles • Young and hungry mindset, prioritising ability to learn with agency over experience • Familiar with fine-tuning algorithms and frameworks, transformers/trl, ART, verl and unsloth • Bonus points for experience in contributing to open-source projects, startups, AI agents, similar technologies

Company: PredictDAO

Location: Remote (Western Hemisphere) / NYC

Type: FULL_TIME

Salary: $200k - $300k

PredictDAO is a blockchain-based nonprofit global health organization building prediction markets for real-world public goods in the healthcare sector. The intended users for our tools include foundations, aid agencies, and high-net worth individuals. We are pre-launch, with two full-time employees at the moment, and interested in finding another engineer who is excited about our mission of saving and improving lives by filling some of the funding gaps caused by recent budget cuts to USAID.

Company: Duranta

Location: Seattle, WA

Type: FULL_TIME

We are building software to help lawn care professionals landscapers design, sell and maintain beautiful spaces. Millions of acres a year are converted into urban dwelling spaces, and we want to help make them as beautiful and as ecologically friendly as possible. Duranta was founded a little more than a year ago. We are well funded and are expanding our team. Join us, as our second CV/ML engineer and help lead Duranta's computer vision efforts. You'll work on foundational models for aerial imagery understanding, using one of the largest aerial datasets ever assembled, and: Collaborate with the founders and a world-class CV/ML advisor to push the limits of aerial image understanding Architect scalable training inference pipelines Build and refine models for fine-grained semantic and instance segmentation Drive experimentation and infrastructure for rapid iteration Help define our CV roadmap—from model architecture to dataset strategy to active learning Stack: Python, PyTorch, Mask2Former, SwinV2, AWS, W B

Company: Cassidy

Location: New York City

Type: FULL_TIME

Cassidy is a no-code platform that allows businesses to build custom AI assistants that automate complex business processes, powered by internal company data. By connecting to a company’s knowledge (docs, wikis, calls, etc.) and leveraging major AI models, Cassidy aims to be the 'AI colleague' for every team—helping them work 100x faster without heavy engineering overhead. We're well funded, growing incredibly fast and have an insane distribution advantage in a growing market. If building powerful and reliable automation primitives for non-technical users sounds interesting to you, I'd love to chat!

Company: FusionAuth

Location: Denver, CO, USA

Type: FULL_TIME

Salary: 140k-200k

Our mission is to make authentication and authorization simple and secure for every developer building web and mobile applications. We want devs to stop worrying about auth and focus on building something awesome. There are a lot of companies in the auth space, but we feel like we have something special: a unique deployment model (self-host on-prem or in your cloud or run in our cloud), A well designed API first approach; one customer compared our app to petrichor, a mature product (the code base is over eight years old and we've found and fixed a lot of the sharp edges around core login use cases; however there are plenty more features to add), founder-led; the CTO is an engineer who still writes code, a full featured free-as-in-beer version that makes the sales cycle easier; prospects often come in having prototyped an integration already. Our core software is commercial with a free as in beer version. We also open source much of our supporting infrastructure. We are profitable but raised money in 2023 to accelerate our growth.

Company: Rover

Location: Barcelona, Spain Seattle, USA

Type: FULL_TIME

Rover is the world’s largest online marketplace for pet care. We connect millions of pet parents with trusted sitters and walkers, and we’re building a global platform that combines technology, community, and love for animals. With offices in Seattle, Barcelona, and beyond, we’re scaling an engineering culture focused on high-quality code, data-driven product decisions, and customer empathy.

Company: Mathlib Initiative

Location: Fully-remote

Type: FULL_TIME

The Mathlib Initiative is a new programme of Renaissance Philanthropy. We exist to support Lean's open-source library of formal mathematics known as Mathlib.

Company: Modash

Location: Remote (EU)

Type: FULL_TIME

Salary: (€60k-100k)

Modash is an end-to-end influencer marketing platform for Shopify stores. We help every creator earn a living. Headquartered in Tallinn, Estonia, with engineering distributed across Europe. 60 person team, raised €11M in Series A funding, ARR growing 2x YoY.

Company: N43 Studio

Location: Toronto, Canada

Type: FULL_TIME

N43 Studio is a venture studio dedicated to building bold, technology-driven companies from the ground up. We identify emerging opportunities, develop ideas into working prototypes, and launch ventures designed to scale. We’re hiring a full-time, Senior Full Stack Engineer to join our first product pod and help bring our first venture to life. You’ll work alongside a product manager, front-end engineer, and back-end engineer, supported by a Principal Architect and the studio leadership team. You’ll have autonomy, clear ownership, and the chance to shape both the product and our technical foundations from day one. This is a hybrid role, 3 days a week based out of our Toronto office. What We’re Looking For - 5+ years of experience building full-stack web applications, ideally in startup or venture environments. - Strong proficiency in Python, particularly with modern frameworks like FastAPI or Flask. Experience in other backend languages (e.g., Node.js, Go) is a bonus, but Python is our primary stack. - Proficiency with modern frontend frameworks such as React and TypeScript. - Familiarity with cloud infrastructure (GCP preferred) and DevOps best practices. - Comfort working in high-ambiguity, high-velocity environments with a lean, collaborative team. - A builder mindset—you’re as comfortable iterating in code as you are thinking about product.

Company: Prove AI

Location: Fully Remote

Type: FULL_TIME

Prove AI is an AI management platform that helps organizations centralize and manage their AI models while maintaining strict oversight of data access and usage. Built on distributed ledger technology, Prove AI provides tamper-proof oversight, ensuring organizations can set and enforce guardrails to mitigate risk and optimize AI performance. This is a hands-on engineering role for someone excited about crafting production-grade software, solving complex problems, and contributing to a high-performing product and engineering team. As a Full Stack Developer you will work across the stack—primarily using TypeScript, React, and Node.js—with opportunities to contribute to both backend systems and frontend interfaces. While the role values frontend capability, strong backend engineering experience is essential to support our API layer, data processing, and system integrations.

Company: Lara Health

Location: USA

Type: FULL_TIME

Lara Health is on a mission to transform how healthcare is delivered for chronic care management. We enhance patient care, improve operational efficiency, and create new, diverse revenue streams for healthcare organizations. We are looking for self-starters with a growth mindset, with strong accountability, and ready to take ownership. You’ll have the opportunity to work across the stack, solve complex problems, and contribute to mission-critical applications.

Company: ROCKSTAR GAMES

Location: NYC-San Diego-New England

Type: FULL_TIME

A career at Rockstar Games is about being part of a team working on some of the most creatively rewarding and ambitious projects to be found in any entertainment medium. You would be welcomed to a dedicated and inclusive environment where you can learn, and collaborate with some of the most talented people in the industry. Responsibilities include developing highly scalable server-side features for our online game console clients using object-oriented development in C#, ASP.NET, and SQL Server, developing back-end services and APIs, actively practicing Test Driven Development (TDD) while developing new features and refactoring existing code, working in an AWS cloud-based, event-driven microservice architecture with a high priority on web performance optimization, and collaborating with other Rockstar technology teams across our worldwide studios.

Company: Ploid AI

Location: Barcelona, Spain

Type: FULL_TIME

Salary: Full-time + Equity

We’re building an AI-first bioinformatics platform to empower plant breeders and life science researchers with agentic AI and LLMs. Backed by pre-seed funding and real demand from biotech and seed companies, we’re looking for versatile founding engineers to help us shape the future of AI in genomics. What you’ll do:• Architect and build AI workflows, agentic interfaces, and data pipelines• Work across the stack: Go, Python, TypeScript• Contribute to system design, infrastructure (AWS, Docker, Terraform), and devops• Collaborate closely with scientists and iterate from prototype to product• Help define our technical culture and roadmap as a core founding member. Nice-to-haves (not all required): LLM integration, RAG systems, gRPC, scientific computing, cloud/on-prem hybrid systems. About us: We’re an early team of engineers and scientists with strong academic and industry backgrounds (ex-BCG, PhD in Plant Biotech, M.Sc. AI). We’re committed to building something impactful, technical, and genuinely useful for life science.

Company: Imbue

Location: San Francisco, CA (ONSITE)

Type: FULL_TIME

Imbue is building a coding agent environment that imbues engineering wisdom into LLM workflows—so anyone has the power to create software they can trust. We aim to rekindle the dream of personal computing and make software creation accessible to all, so every person can have the power to shape their computational future.

Company: Attendi

Location: Amsterdam, Netherlands

Type: FULL_TIME

Healthcare professionals have to spend too much time on administrative tasks when they should be spending that time delivering great care. Attendi allows healthcare professionals to report with their voice. This saves them precious time and removes the screen between client and caregiver, allowing more personal and effective care to be given. Burdened by an aging population, the healthcare sector is in desperate need of innovators like Attendi. We feel that we provide an extraordinary work environment: getting paid well to work with smart people on things that actually have a positive impact on society. We are building the best-in-market speech-to-text and NLP solutions for Dutch health care professionals, and are looking for an experienced ML Platform Engineer to support in building and optimising our ML and data infrastructure with a focus on reliability, performance, and scalability. You will contribute to research and innovation, helping expand the capabilities of our AI-driven tools, building the next generation of our Speech-to-Text Engine — expanding into new domains and reaching a broader range of healthcare professionals. We have a dedicated team with fewer than 25 members, which means no bullshit, moving fast, and getting a generous slice of equity. We're post product-market fit, profitable, and on the cusp of scaling up in the Dutch market.

Company: Equity Trust

Location: Cleveland, OH or REMOTE

Type: FULL_TIME

Salary: 150 - 180k

Equity Trust is a custodian of self-directed IRAs that gives clients the tools to manage their own retirement accounts, and to invest in a range of traditional and alternative assets. We have been helping clients steer their own retirement accounts for over 50 years, and now have over 400,000 accounts, and over $65 billion in assets, under custody. We have offices in Ohio, Florida, Texas, and South Dakota if in-person work is your jam, but fully support remote work as well. The role: We're looking to add a founding ML engineer to build out our data science practice (and ideally hire and lead a data science team). You would be our first ML hire and working alongside our data engineering and product teams to identify, scope, POC, and productionize relevant analytic use cases to help drive new and improved product offerings, and to elevate our client experience. Our data eng stack is mostly Python + AWS, and you will have the resources and support to develop an ML stack alongside that. Generally, if you like working with data, tackling open-ended problems, and (optionally, but always nice) building cool products to help folks take a more active role in their investments --- you'll probably have a good time here!

Company: VitVio

Location: Remote (EU Timezones)

Type: FULL_TIME

We're building AI-powered systems to make hospital operating rooms safer and more efficient. We're looking for a seasoned engineer who values clean code, robust architecture, and a collaborative culture. You'll join a small, strong team and will have a massive impact on a product used in high-stakes clinical environments. We are looking for engineers with strong fundamentals, and who knows how to work efficiently in a team through code reviews and version control.

Company: Materialize

Location: NYC Onsite / Hybrid

Type: FULL_TIME

Materialize is the live data layer for apps and AI agents. It lets your team use SQL to create up-to-the-second views into any element of your business. Use Materialize to power data-intensive UIs, deliver fresh context to AI agents, and create event-driven architectures to power core business processes. Materialize is trusted by General Mills, Ryder, and Fubo.tv to solve their most pressing real-time data challenges. Under the hood, Materialize is a novel distributed database capable of incremental view maintenance over arbitrary SQL. We think it's pretty cool :D We are generally hiring for more database engineers! Lots of hard distributed systems and database problems to untangle these days.

Company: TestBox

Location: San Francisco, CA

Type: FULL_TIME

Salary: $180k + Equity Benefits

TestBox is a fast-growing startup on a mission to fundamentally transform how software is bought and sold. We're building the next-generation infrastructure for software transactions, creating seamless experiences from initial interest to successful onboarding. We are backed by world-class investors and are looking for foundational team members to build greenfield systems and make a massive impact from day one.

Company: Hardfin

Location: Denver metro, CO or Bay area, CA

Type: FULL_TIME

Salary: 150k-180k salary

Hardfin is a B2B software platform for equipment manufacturers that enables them to track their assets and manage projects for their hardware. We are looking to add another fullstack engineer that can wear a bit of a product hat and is comfortable with figuring it out as they build. Short and transparent hiring process, 30 min intro call, 30 min tech screen, 30 min vision/product call, 2hr technical test, 45 min culture fit call, offer. No panels, no leet code questions. Requirements: 5+ YoE, 3+ Go, 1+ Typescript, 6+ months of working with AI assisted IDE/tooling.

Company: Absinthe Labs

Location: Remote / NYC Hybrid

Type: FULL_TIME

Absinthe is building the most sophisticated gamification engine for crypto-native incentive programs. With 50M+ visits, 2M+ active users since 2022, we're looking for a Full-Stack Engineer with a love of UX to accelerate our momentum. You'll own a diverse set of features end-to-end: from schema design, wiring GraphQL through polished frontends, to rapid deployments and monitoring. Recent examples shipped by single engineers include: - Unified social+wallet auth centralizing user identities. - 'Buy-me-a-coffee' embeddable Web3 widget (script-based integration). - Webflow-like WYSIWYG loyalty-program builder. - Embedded Metabase analytics inside our app. Our Stack: Next.js, Hasura, dbt, MotherDuck/DuckDB, GraphQL, in-house Web3 indexing. What you bring: Open Source Contributor: We love open source! Love for crafting efficient UX; shipping fast and iterating. Leverage LLM-based workflows in daily dev practices. A portfolio showcasing impactful, end-to-end fullstack projects. Why Absinthe: High-Impact Work: Join a tight-knit team shipping Web3 loyalty infrastructure that directly influences millions of users. Flexibility: Choose fully remote or hybrid (NYC). Competitive salary (region-based) and equity in a high growth Web3 startup.

Company: Hearst

Location: New York City

Type: FULL_TIME

Hearst's corporate team is looking to fill two roles (in Engineering Program Management) on its Generative AI Team, working to empower businesses across our diversified portfolio spanning publishing, health, transportation, and financial services. Our team's purview includes evaluating and benchmarking new releases, experimenting with the best ways to apply them to existing business problems, piloting POCs that demonstrate new ways of doing things, and accelerating the entire process on our team and within our various businesses through AI driven development tools tactics. Do you enjoy actively learning and experimenting with new tools processes? Do you like solving problems across a wide range of domains and disciplines? Are you excited by the potential and application of emergent generative capabilities and agentic autonomous systems?

Company: Sourcegraph

Location: San Francisco

Type: FULL_TIME

Sourcegraph is hiring SWEs and FDEs for Amp, the most effective multi-model AI coding agent. We're a team that ships and we build Amp in a crazy way. Backed by Sequoia, a16z, Craft Ventures, and Redpoint. We’re hiring people who are doing impressive things with coding agents. If that's you, show us something you've built or published!

Company: Better Stack

Location: Europe remote in UTC ± 3h

Type: FULL_TIME

We are software builders at :heart: CEO is a software engineer, COO is a software engineer and you guessed it; CTO is an engineer, too. We are engineers, making the tools we always wanted. If you love building amazing software, you're at the right address. We are looking for software engineers who, if given enough time, could build Better Stack on their own = looking for Full-Stack/Product Engineer/Generalist to help us create high-quality software with exceptional UX – end to end.

Company: Beacon AI

Location: Not specified

Type: FULL_TIME

Salary: Not specified

We’re a fast-moving team of aviators, engineers, and operators on a mission to transform aviation with an AI platform that makes flying safer, more efficient, and more capable. Backed by top investors and having already secured a dozen Department of Defense contracts and worked with three major airlines, we’re flying through barriers and working on a mission that matters. At Beacon AI, there are no silos or layers of overhead. Small, focused teams own what they build, ship fast, and learn even faster. Every line of code, data pipeline, or system we design pushes the boundaries of how humans and AI work together in the cockpit and beyond. If you thrive at the intersection of hard-tech ambition and mission urgency, you’ll build faster here than anywhere else. Open Roles: Backend Software Engineers - Multiple Seniority Levels, Cloud Infrastructure Software Engineers - Multiple Seniority Levels, Cloud IoT Software Engineers - Multiple Seniority Levels, Backend Cloud Infra Technical Lead Manager

Company: ShieldAI

Location: Remote (US) or San Diego, CA with occasional travel

Type: FULL_TIME

ShieldAI's Hivemind Special Project is hiring a Staff to Principal-level Infrastructure Web Applications Engineer. We're a small team entirely comprised of L5-L8 ICs, working to bring seamless robotic behavior and coordination development from a sci-fi concept into reality. Our team works on a collection of long-term initiatives, demos, spike/proof of concepts, and assists to support Hivemind Product and Hivemind Solutions. LLM/AI applications for development acceleration represent a significant portion of our focus. For this role, we are looking for someone deeply versed in Web Application and Infrastructure development. In particular TypeScript, bundlers, isomorphic development strategies, Web semantics, CSS/modules, browser performance optimization, protocols, etc. If you have built custom webpack loaders, an SSR framework of FRP renderer from scratch, done packet level processing, or frame-rate optimizations in React, and have strong opinions about functional development and infrastructure please reach out!

Company: Radar Labs

Location: Remote (US), NYC

Type: FULL_TIME

Radar Labs is the geo-location dev tool. Doing 1B+ API calls per day. Our main languages are Rust and TypeScript, we also use mobile and offline pipeline languages (Python, Scala, and Terraform). We're based in NYC with our HQ in Union Square and remote friendly (US). Interesting things we're working on: HorizonDB, our Geospatial database written in Rust. Precise indoor location more accurate than iOS and Android leveraging Ultra-Wideband and other sensors and ML. Extracting raw map data from satellite maps and the web leveraging ML and AI. Anomaly detection to identify spoofed locations. Mobile infrastructure that automatically configures itself optimizing battery-life and location accuracy for different use-cases over time. Multi-Region AWS K8s deployment, 99.99%+ availability. Frontend tools to visualize and debug location data at scale.

Company: JWP Connatix

Location: REMOTE (EU)

Type: FULL_TIME

JWP Connatix is the most comprehensive independent video technology and monetization platform, helping broadcasters, publishers, and advertisers deliver premium streaming and online video experiences while maximizing video revenue across all screens. The company offers an end-to-end platform that streamlines live and on-demand video with hybrid monetization models, unique data and insights, unmatched customer service, and the largest independent premium video marketplace, providing the entire media ecosystem with enhanced scale, transparency, and revenue. We are looking for a skilled and adaptable AI Engineer to join our AI Proof of Concepts team at JWP Connatix. You'll be responsible for implementing AI-First development methodologies, integrating sophisticated AI tools into our software pipeline, and rapidly building MVP prototypes that demonstrate innovative solutions. This role offers the opportunity to work at the cutting edge of AI-integrated development while delivering high-impact prototypes in a fast-paced, iterative environment. The ideal candidate thrives in rapid prototyping environments, has hands-on experience with AI tool integration, and enjoys the challenge of quickly turning concepts into working demonstrations for stakeholder validation.

Company: Oneleet

Location: US NATO Countries

Type: FULL_TIME

Salary: Competitive salary, Equity in a fast growing cybersecurity startup

Oneleet is an all-in-one cybersecurity startup that has built its own Attack Surface Monitoring (ASM), Code Scanner, Device Monitoring, and Compliance Platform. We are growing at an unprecedented pace and working on some very exciting projects. We're looking for strong problem solvers who can work independently in a remote environment - Security-minded professionals passionate about building robust, scalable systems - Comfortable working during Eastern Time. Open roles: Software Engineer, Backend; Software Engineer, Cloud Security Posture Management; Application Software Engineer, Endpoint Security; Security Program Manager (EU Timezone); Technical Sales (must have background in Computer Science or Cybersecurity); Invoicing Coordinator. We offer 100% remote work and company offsites every quarter (past offsites have been in The Netherlands and Italy).

Company: Seeq

Location: REMOTE (Some crossover w/ PST required)

Type: FULL_TIME

Salary: $140k - $180k + equity. Salary range for US-based; local adjustments for other countries.

Seeq creates cutting-edge data analytics software for industrial process data, serving sectors like pharmaceuticals, energy, and manufacturing. Our core product is a robust calculation engine capable of executing advanced math and machine learning algorithms on streaming time-series data. By leveraging generative AI, we enhance usability and accelerate outcomes for our users. We've built up a great remote culture (e.g. annual meetups, a remote office app we created to collaborate) and a dev team that enjoys tackling hard problems that make a difference for our customers.

Company: Y Combinator

Location: San Francisco

Type: FULL_TIME

Salary: Highly competitive compensation and benefits

YC has a small but important software team responsible for several websites and building AI agents to automate their processes. You'll have access to the YC program, with talks from famous founders, and opportunities for those wishing to start their own startup.

Company: Vantage

Location: NYC and Remote

Type: FULL_TIME

Vantage is a FinOps / Cloud Cost Management platform that helps 15,000+ organizations globally like Block, Rippling, FanDuel, CircleCI, etc manage their infrastructure costs. We are a ruby/rails shop and if you love infrastructure, it's a very interesting role as our customers are others like you looking to manage their infra spend. We're a well funded Series A company and backed by a16z and Scale. The company is about 50 people today and scaling up quickly.

Company: Count

Location: REMOTE within UK/Europe

Type: FULL_TIME

Salary: £100-140k + Equity

Count is like Jupyter, Tableau and Miro combined in one tool. Some of the world's leading data teams use it for everything from iterating data models and performing in-depth analyses to creating process flow maps of their entire business. We're a small team looking for experienced software engineers who are interested in tackling deep technical challenges in the data analytics space. For the best possible user experience, we have developed various technologies in-house, including a custom WebGL rendering engine, our own data visualization library, and a reactive SQL/Python notebook and database query framework. Example projects: leveraging agentic workflows in data exploration, accelerating rendering using quadtree tiling, extending interactivity and customizability of visualizations, developing serverless frameworks for executing database queries at high concurrency. Our tech stack: TypeScript, Python, Node, WebAssembly, WebGL, Apache Arrow/Parquet, DuckDB, Kubernetes, React.

Company: Tandem Health

Location: Stockholm, Sweden

Type: FULL_TIME

Salary: $50M Series A raised

At Tandem Health we're building a clinician copilot to allow clinicians to focus on care rather than administration. We’re building, launching and iterating quickly, and already have 2000 organizations using our product. Our core product listens in to the patient-clinician encounter to generate medical records, allowing clinicians to save 5-10 minutes per patient. No longer do clinicians have to catch up on administration after hours. Some even tell us that their partners notice they're much more relaxed after starting to use our product, and we couldn't be happier. We just raised a $50M Series A and are now expanding our Stockholm team with exceptional engineers! We use Python (backend), TypeScript/React (frontend) and C# (Windows app) and our infrastructure runs on Kubernetes in Azure. We're scaling rapidly in terms of # of users and are especially keen to talk to seasoned backend, data and infrastructure engineers. Even if we don’t have a role out for your specific skill set, we’d love to talk! Our tech team is small but growing and you’ll have an outsized impact on an important problem.

Company: Rocket Alumni Solutions

Location: REMOTE (Crossover with EST timezone)

Type: FULL_TIME

Salary: $140k - $180k USD

Rocket Alumni Solutions builds interactive recognition displays for schools, universities, and organizations. In 2025, we’ll surpass 1,400 touchscreen installations — profitable and scaling rapidly.

Company: RentSpree

Location: Seattle

Type: FULL_TIME

Salary: $200k-220k base

RentSpree is a series B startup simplifying every step of the rental process—from applications and tenant screening to payments and lease management. Our mission is to create a seamless, transparent experience that saves time, boosts earnings, and builds trust between agents, landlords, and renters. I'm the hiring manager for most of these roles. Come help us build greenfield products for agents and for our embedded finance platform for rental property owners.

Company: Coder

Location: Multiple locations

Type: FULL_TIME

Salary: Not specified

Coder is an AI software development company leading the future of autonomous coding. We empower teams to build software faster, more securely, and at scale through the collaboration of AI coding agents and human developers. Our mission is to make agentic AI a safe, trusted, and integral part of every software development lifecycle. Coder’s self-hosted Cloud Development Environment (CDE) is the foundation for deploying agentic AI in the enterprise. It provides a secure, standardized, and governed workspace to deploy autonomous coding agents alongside human developers, accelerating innovation while maintaining control and compliance. Coder's isolated, policy-driven environments improve productivity, cut cloud costs, and reduce data risks. Developers transition to AI at their own pace using their own tools. Platform and security teams can govern, audit, and manage a great developer experience at scale.

Company: Findigs

Location: NYC

Type: FULL_TIME

Salary: $180k - $210k

At Findigs, we’re transforming the rental experience — making it fairer, stress-free, and more convenient by changing the fundamentals of renting. We build high-scale applications that streamline renting for millions. Our modern tech stack includes TypeScript, Python, Node.js, React, and scalable cloud infrastructure. We foster a collaborative culture where engineers have high ownership and autonomy, taking features from concept to deployment. Join our sharp, supportive, and mission-driven team in our newly renovated SoHo/NoHo office.

Company: Spacelift

Location: Remote (Europe)

Type: FULL_TIME

Salary: $80k-$110k+ (can go higher)

We're a VC-funded startup (recently raised $51M Series C) building an infrastructure orchestrator and collaborative management platform for Infrastructure-as-Code – from OpenTofu, Terraform, Terragrunt, CloudFormation, Pulumi, Kubernetes, to Ansible. On the backend we're using 100% Go with AWS primitives. We're looking for backend developers who like doing DevOps'y stuff sometimes or have experience with the cloud native ecosystem. Ideally you'd have experience working with an IaC tool, i.e. Terraform, Pulumi, Ansible, CloudFormation, Kubernetes, or SaltStack. Overall we have a deeply technical product, trying to build something customers love to use, and have a lot of happy and satisfied customers. We promise interesting work, the ability to open source parts of the project which don't give us a business advantage, as well as healthy working hours.

Company: SewerAI

Location: SF Bay Area Hybrid

Type: FULL_TIME

Salary: $180K–$230K + equity, full benefits, unlimited PTO.

About us: SewerAI is an AI-powered platform modernizing how cities and engineering firms inspect and manage sewer infrastructure. Using computer vision and geospatial analysis, we’re cutting costs, improving safety, and transforming how critical infrastructure is maintained. Role: You’ll own features end-to-end: from AI-driven video analysis and mapping dashboards to scalable APIs and polished React frontends. Engineers on our team ship impactful projects like automated defect detection, real-time geospatial dashboards, and large-scale data pipelines. Our Stack: React + TypeScript, Fastify, PostgreSQL/PostGIS, Prisma, Temporal.io, AWS, Docker, CI/CD. What you bring: 5+ years full-stack experience with TypeScript, React, Node.js, and PostgreSQL. Bonus for geospatial, computer vision, or AWS. Why SewerAI: High-impact work improving infrastructure communities rely on. Series B.

Company: Category Labs

Location: Remote and NYC

Type: FULL_TIME

Salary: $200K USD+

Category Labs (formerly known as Monad Labs) is a team of systems engineers and researchers on a mission to design and build at the frontier of decentralized technology. We strive to design and build step-function improvements over existing blockchain solutions. After recently raising $225M in series A funding, led by Paradigm, we are growing our team.

Company: LiveKit

Location: Remote

Type: FULL_TIME

LiveKit is defining a new paradigm for how applications are built by providing the framework and network infrastructure for voice, video, and physical AI. We are looking for Builders!!!! Passion for building something truly impactful.

Company: Comity Inc.

Location: Hybrid (Brooklyn, NYC)

Type: FULL_TIME

Comity is on a mission to improve the reliability, transparency, and efficiency of our energy systems, fostering a future with sustainable and abundant energy. Our team is leveraging statistical learning and convex optimization methods to build the financial rails of our future energy systems that will accelerate the deployment of clean energy resources.

Company: Furtim Modus

Location: NYC

Type: FULL_TIME

Salary: $125k-200k

We are currently seeking a talented and driven Java Developer to join our team full-time. This is an exciting opportunity to contribute your skills and expertise to a fintech venture with emphasis in capital markets tech based out of the New York City and in exchange we’ll provide you with base comp $125k-200k, full benefits, cash bonus, and equity. Requirements: - Electronic trading server-side software development experience - Experience in Open Source technologies such as Aeron Transport, Aeron Cluster, Aeron Archive, Artio, Agrona, or CoinTossX is a big plus - Experience with Adaptive Hydra trading platform is a big plus. Benefits: - Flexible hybrid schedule to accommodate other commitments - Collaborative and supportive team environment - Relocation assistance to NYC Metro area. If you are passionate about Java development and interested in joining a fintech venture, we would love to hear from you. Please submit your resume if interested to [email protected] in this opportunity.

Company: HomeCloud

Location: Remote (US, EU UTC-6 to UTC+2)

Type: CONTRACT

HomeCloud is a fast-growing proptech startup rethinking home inspections, onboarding, and management using cloud-native systems and AI. We just raised a $3.5M seed round from top VCs and are building intelligent infrastructure for the future of homeownership. We’re looking for a Senior Cloud Engineer to help us build scalable backend systems on AWS using Lambda, Step Functions, DynamoDB, EventBridge, and more. You’ll work with a modern serverless stack, integrate AI services (e.g. OpenAI, Bedrock), and help define our engineering culture alongside the CTO and founding team. You might be a fit if you: • Have 5+ years of experience building serverless systems on AWS • Are fluent in Node.js + TypeScript • Have worked with serverless architecture and event-driven systems • Are curious about AI/LLM APIs and how to integrate them into real-world workflows • Value ownership, pragmatism, and building useful products quickly This is a high-impact, remote-first role on a small, focused team building the foundation of a data-rich, AI-powered platform.

Company: Trunk

Location: Remote US or Canada

Type: FULL_TIME

Salary: Competitive salary and equity packages

Trunk is an a16z funded dev tools startup, redefining software development at scale. We aim to solve problems that developers hate by bringing the tools usually built in-house at the best engineering orgs to every development team. Some of our products: * Merge Queue: a merge queue, to ensure that PRs are tested in order before they're merged. * Flaky Tests: Detect and eliminate Flaky Tests. * AI DevOps Assistant: Automate Reccurring DevOps tasks in chat. In 2022, we raised a $25M Series A led by Initialized Capital (Garry Tan) and a16z (Peter Levine) Our tech stack: * Frontend: Typescript, React, Redux, Next.js * Backend: Typescript, Node, AWS, CDK, k8s, gRPC * Observability: Prometheus, Grafana, Kiali, Jaeger * CLI: C++20, Bazel * VSCode Extension: Typescript * CI/CD: GitHub Actions * General: GitHub, Slack, Linear, Slite Unlimited PTO (and we all actually take PTO)

Company: Memorang

Location: Remote

Type: FULL_TIME

Our mission: Build the AI stack for education—an agentic framework to launch, monetize, and power learning apps 50× faster. We bootstrapped to profitability, were voted #1 among 1,500 in the Vercel AI Accelerator, and collectively reach tens of millions of learners. Open Roles include Full-Stack Engineers, Senior AI Agents Engineers, Product Designers, and Technical Product Manager. Responsibilities vary by role, focusing on building AI-powered features and tools.

Company: Clerq

Location: NYC

Type: FULL_TIME

Salary: $180-210k + Equity

Clerq is a NYC based fintech startup building a next generation payments platform that delivers a seamless checkout experience for high-ticket transactions. By leveraging modern bank rails, the platform offers the conversion and UX benefits of cards with risk and money movement infrastructure purpose-built for large purchases. Clerq replaces outdated manual payment methods like cash, checks and wires and expensive card surcharges with a smooth, integrated solution that helps merchants convert more customers without sacrificing margins. We have started with the $1T+ U.S. auto vertical, where our platform is growing rapidly and already powering payments for several of the most recognized brands in the industry including multiple Fortune 500 companies. With proven traction, the company has expanded into high-growth adjacencies including high-ticket e-commerce, private travel and powersports. We are a lean team and looking for senior or staff level engineers to help us accelerate our growth and build a future that doesn't rely on credit card networks. Stack: Python/Django, React, Nodejs, AWS.

Company: Datadog

Location: Boston, Lisbon, Madrid, NYC, Paris, Tel Aviv

Type: FULL_TIME

Datadog is a monitoring, tracing, logs system, and more, for your infrastructure and services. We build our own tsdb, event store, distributed tracing tools, cutting edge visualizations, and more. We love shipping great experiences for customers just like us and are growing fast! We write a lot of Go, Java, Python, Typescript (with React), and a bit of other languages. We run on k8s, and are multi-region and multi-cloud. We're looking for people who can build systems at scale as we process trillions of events per day. Let us know if that's you!

Company: Dash0

Location: FULLY REMOTE

Type: FULL_TIME

Salary: Salary + equity

Dash0 is a fast-growing, venture-backed startup on a mission to make observability radically easier for every developer. We fully embrace OpenTelemetry, Prometheus, and open standards, and our “welcome present” to the OpenTelemetry community, OTelBin, a free tool for editing, visualization and validation of OpenTelemetry collector configurations, is being extremely well received by the community. We’re currently hiring in multiple roles across engineering, design, and product: * Senior Product Engineer – Backend (Remote EU) * Senior Product Engineer – Kubernetes Operator (Remote EU) * Senior Product Designer – Observability (Remote EU) * Senior Technical Writer (Remote)

Company: Peregrine Technologies

Location: SF / NYC / DC

Type: FULL_TIME

Salary: $130,000 - $250,000

Join our founding engineering team. Peregrine helps critical institutions make better decisions and improve operations by unlocking the value of their data.

Company: Samsung Research America

Location: Mountain View

Type: FULL_TIME

Salary: Competitive base salary, bonus, 401k

Hiring for both Speech to Text ASR, Text to Speech TTS, and Speech to Speech roles with 5+ years experience. Work on cutting edge AI Speech Research.

Company: Common Prefix

Location: Greece

Type: FULL_TIME

Salary: $80,000–$160,000 / year

Common Prefix is a science-first blockchain consulting company. Our vision is to make blockchains usable for mainstream users and everyday people – paying at the supermarket, remittances, moving money across borders, saving, investing – and solving the real problems of usability, scalability, and interoperability that come with it. We're a 30-person team, half scientists (cryptographer PhDs, post-docs, and professors) from renowned universities, half engineers with long web2 experience. A lot of our field is broken and we're trying to make a small contribution in fixing it, by introducing provable security and proper engineering practices across the board. What we're looking for: Software engineers who can solve problems, are smart, get things done, and enjoy working on the bleeding edge, learning about cryptography, and working from first-principles. Auditors who can write and read code, especially low-level cryptographic implementation code (zero knowledge verifiers, signature schemes, etc), consensus (PoW, PoS), or smart contracts (everything DeFi). Tech stack: Doesn't matter, we'll teach you. But we work mostly with Rust.

Company: Great Question

Location: USA/Canada

Type: FULL_TIME

Great Question is a unified customer research platform used and loved by teams at companies like Amazon, Canva, Brex. Our platform makes it easy for anyone to recruit research participants, schedule customer interviews, and share what you learn with your team all in one place. We're third-time founders, backed by Y Combinator, building a company for the long-term, with a great team across the board, and shipping at a rapid yet sustainable pace. We're looking for our first non-founder engineering leader to help us keep the trains running on time. We've built an awesome team + culture at the company, high candor + EQ environment and we ship. We also welcome applicants who have previously run their own startups, with a bunch ex-founders on the team from the likes of Respondent and Indiegogo.

Company: IVPN

Location: Remote - Europe (UTC-1 to UTC+3)

Type: FULL_TIME

Salary: Base salary + Up to 4% equity

We are building a truly private, open-source LLM gateway to address privacy problems around using LLMs. When we interact with AI-based services, we face the fundamental tension between utility and privacy. Current solutions to this problem are inadequate, so we are ready to build what we couldn't find. A well-funded, bootstrapped venture by the founders of IVPN - a VPN service highly regarded by privacy advocates and analysts, in operation since 2009. We are looking for a Founding Engineer (based in Europe) to architect and build an MVP from the ground up. This is a role for a senior builder with strong security/infosec background, track record in privacy-first solutions, at least 8 years of professional experience, deep expertise across the stack (Go/Rust for backend, React/Vue for frontend), and an infrastructure automation mindset. You can expect a founder-funded, sovereign startup approach with no VC involvement and exit pressure, a small, dedicated, 100% remote team that prefers pragmatism and maximum autonomy, complete technical ownership, strong base salary and a significant, foundational equity stake (up to 4%). If you're a self-directed, experienced engineer who wants to build the foundational infrastructure for private, trustworthy AI access, email me at viktor at ivpn.net for a one-page project brief.

Company: MONUMENTAL

Location: Amsterdam, The Netherlands

Type: FULL_TIME

We make robots that autonomously construct buildings. We are currently developing and manufacturing our autonomous bricklaying system in the beautiful centre of Amsterdam. And our robots are already earning real revenue operating on construction sites all over the Netherlands. We're looking for experienced FULL-STACK ENGINEERS who can help us solve problems like: Data sync and analytics queries across a fleet of robots (that can be offline for hours at a time), Rapid deployment and iteration of experimental software changes across firmware, control software and UI, Modelling buildings in code and finding the right UI for operators to edit them. Robotics experience not required!

Company: Connie Health

Location: Hybrid (Boston, MA)

Type: FULL_TIME

Salary: $130,000 - $182,000 + equity

Connie Health is a fast-growing startup on a mission to empower older Americans to make confident, worry-free healthcare decisions. Backed by leading investors such as Khosla Ventures and Pitango, we are building technology to transform the trillion dollar Medicare insurance industry, impacting the lives of 67 million people in the US. You will work at the intersection of the latest in applied AI/ML, software engineering, product, and infrastructure to build our best-in-class Medicare navigation and sales platform. We are looking to fill multiple positions on our rapidly growing engineering team, based out of Boston, MA: Lead AI/ML Engineer | Player-coach role, leading a small team of AI/ML and software engineers to build our top-of-funnel systems. Senior Backend Engineer | Build the core backend systems that power our top-of-funnel, such as tracking leads through various channels, integrating with affiliate partner marketplaces, working with AI/ML engineers to build our lead bidding models, dynamically mapping leads to agents, and AI-based lead pre-qualification.

Company: Layer Health

Location: HYBRID in Boston or NYC (downtown)

Type: FULL_TIME

Salary: competitive base salary + equity + great health/medical benefits

Layer Health was founded in 2023 by leading machine learning researchers from MIT and Harvard Medical School. We are building an AI layer that can accurately and scalably synthesize information from medical records, with the mission to reduce friction everywhere in healthcare. Our LLM-powered platform is solving chart review once and for all, across use cases. For health systems, our first product dramatically accelerates clinical registry abstraction in areas ranging from surgery and cardiology, to oncology. Our long term vision is for our AI layer to safely transform patient care and minimize unnecessary heartbreak. Our team includes open roles such as Data Infrastructure Engineer, ML Infrastructure (Staff+) Engineer, Senior Data Scientist, ML Engineer, Research Scientist, Head of Product, and Data Engineer.

Company: Stream

Location: Amsterdam (NL), Skopje (Macedonia), Boulder, CO (US), Toronto (Canada)

Type: FULL_TIME

We are consistently hiring backend engineers ranging from Senior level to Staff / Lead / Director / Principal Go engineers. If you have experience with a different tech stack, we offer a 10-week onboarding program to train you in Go, scaling and other key topics. We are also hiring for Staff Python Engineer, Senior React Native SDK Engineer, Staff Product Designer, WebRTC SFU Engineer, Director of Information Security. At Stream, we use Go for our video SFU, chat API, Moderation and Feeds, serving high traffic from major apps like Strava, Nextdoor, Patreon, and Midjourney. Our tech stack: Go, CockroachDB, RocksDB, WebRTC, Raft, and Redis. Why Join Stream? High scale/ difficult engineering, startup growth opportunity with healthy revenue, all managers are hands-on and capable engineers, edge network of servers around the world, great opportunity to learn and grow.

Company: Brilliant

Location: Remote (North America), SF, NYC

Type: FULL_TIME

Salary: $170k — $235k

Brilliant is building world-class interactive learning experiences that combine challenging problems, compelling narratives, and delightful visual storytelling. We're hiring engineers and designers to help craft the next generation of interactive learning and change how the world learns. Engineers at Brilliant think about both building the right thing AND building the thing right while pursuing high standards of excellence for ourselves, our product, and our codebase. Our designers craft interaction patterns that make hard math, science, and computer science concepts feel approachable, delightful, and addictively learnable. If you're energized by the prospect of doing the best work of your career and changing how the world learns alongside the most talented peers you've ever worked with, you can learn more and apply here.

Company: Monad Foundation

Location: Remote

Type: FULL_TIME

Salary: $225M Series A Funded

We are actively hiring Engineers to build software and facilitate the adoption of the Monad blockchain. Key roles include: 1. Senior Protocol Engineer 2. Full Stack Engineers 3. Devrel Relations Engineers.

Company: Klara Inc.

Location: Remote

Type: CONTRACT

Klara provides open source development services with a focus on ZFS, FreeBSD, and Arm. Our mission is to advance technology through community-driven development while maintaining the ethics and creativity of open source. We help customers standardize and accelerate platforms built on ZFS by combining internal expertise with active participation in the community. We are excited to share that we are looking to expand our OpenZFS team with an additional full-time Developer. Our ZFS developer team works directly on OpenZFS for customers and with upstream to add features, investigating performance issues, and resolve complex bugs. Recently our team has upstreamed Fast Dedup, critical fixes for ZFS native encryption, improvements to gang block allocation, and has even more out for review (the new AnyRAID feature). The ideal candidate will have experience working with ZFS or other Open Source projects in the kernel.

Company: AllTrails

Location: San Francisco / Remote

Type: FULL_TIME

Salary: Competitive salary, equity, comprehensive benefits, unlimited PTO, monthly “Trail Days,” and a collaborative, mission-driven culture.

You’ll lead multiple engineering teams across the stack, set technical strategy, and work closely with product and design to deliver a high-quality experience for our global community. 10+ years of software engineering experience, with 5+ years in engineering leadership. Experience managing multi-disciplinary teams (frontend, backend, mobile). Strength in technical architecture, team development, and cross-functional collaboration.

Company: Franklin Templeton

Location: Boston, MA

Type: FULL_TIME

Salary: $145k - $190k + Bonus

We're building an end-to-end portfolio construction system to support FTIS a $100bn multi-asset investment manager within FT. This is a front office role that will help guide our quantitative staff as we build out this new system. This project is a strategic objective for FTIS, highly visible, and frankly one of the most fun jobs in the industry. We're looking for mid to senior level researchers or developers with strong buy-side backgrounds who can help translate our investment process in to a robust, scalable, and approachable design.

Company: Digital Onboarding

Location: REMOTE (US based)

Type: FULL_TIME

Digital Onboarding is a marketing automation platform that helps banks and credit unions modernize their onboarding process and develop mutually beneficial, profitable relationships with their customers and members. Stack: Elixir + Phoenix, React, Postgres.

Company: SerpApi

Location: Based in Austin, TX but remote-first structure

Type: FULL_TIME

Salary: $150K - 180K a year 1099 for US or local avg + 20% for outside the US

SerpApi is the leading API to scrape and parse search engine results. We deeply support Google, Google Maps, Google Images, Bing, Baidu, and a lot more. Our current stack is Ruby, Rails, MongoDB, and React.JS. We are looking for more Junior and Senior FullStack Engineers. We have an awesome work environment: We are a remote first company (before Covid!). We do continuous integration, continuous deployments, code reviews, code pairings, profit sharing, and most of communication is async via GitHub. We value super strongly transparency, do open books, have a public roadmap, and contribute to the EFF.

Company: Loman AI

Location: Austin, TX

Type: FULL_TIME

Salary: $175k - 225k + equity

We are building the best-in-class phone AI for restaurants, enabling autonomous agents to handle orders, reservations, and customer inquiries. As a founding engineer, you’ll shape our core product while working directly with cutting-edge LLMs, developing third-party integrations, and designing scalable APIs. Unfortunately, we cannot offer visa sponsorship.

Company: Pocketflows

Location: San Francisco, CA

Type: FULL_TIME

Salary: $170k-225k + equity

At Pocketflows, we’re on a mission to help Main Street SMBs grow. We build marketing and communication APIs that embed inside the vertical SaaS platforms that businesses like salons, fitness studios, and restaurants already use to run their operations. As a founding engineer, you'll be launching new marketing products in addition to our existing email, SMS, and review platform. Our values blend ambition with kindness and empathy.

Company: Comulate

Location: San Francisco, CA

Type: FULL_TIME

We're building automation software for the $7T insurance industry, accelerated by AI. Seed stage in terms of headcount (~ 20 people) but Series B in terms of business traction (+ cash-flow positive). We've intentionally stayed under the radar. Product has caused customers to literally cry tears of joy. Experienced eng team from Airbnb / Brex / LiveRamp. Stack: TS, Postgres, React, GraphQL, and Next.js.

Company: BillionToOne

Location: Menlo Park, CA; on-site or hybrid (US only)

Type: FULL_TIME

Salary: Compensation details not provided

BillionToOne is ranked at the top 5% of Y Combinator companies with close to $400M in funding. In June 2024, we closed a $130M Series D resulting in a company valuation of over $1 billion. This funding has come from prestigious global institutional investors, including Hummingbird, Adams Street Partners, Neuberger Berman, Baillie Gifford, and Premji Invest. We have developed a DNA molecular counter that increases cfDNA diagnostic resolution by over 1,000x. Our first product, Unity, is the first and only non-invasive prenatal test that can directly screen an unborn baby and assess its risk for: common and severe recessive gene disorders; chromosomal abnormalities; fetal sex; and fetal antigens from a single tube of blood from the pregnant mother. This greatly improves the quality of care and is on its path to becoming the next standard-of-care. Our software stack includes Python/Django, React/Typescript, Terraform, AWS, and many other standard tools. We're a small, but nimble software team that prioritizes rapid iteration and continuous feedback to evolve our product. As a biotech company, we inherently need to always work cross functionally. If you enjoy this style of work, please reach out!