Jobs

Company: Rabbet

Location: REMOTE (TX, NC, CO)

Type: FULL_TIME

Rabbet is hiring Sr. Software Engineers to help us streamline construction finances. We offer cloud-based software for commercial lenders and real estate developers to centralize construction finances, automate administrative tasks, and reduce the time spent managing draws. Backend is in Elixir (Phoenix/Absinthe/postgres), frontend is React (mostly JS with more new stuff in TS). The company is ~20 people with 7 of us on the engineering team. Looking to add another 2-3 engineers over the next ~6 months. We are fully remote, though we do require candidates to be in TX, NC, or CO (exceptions possible if you have several years of professional Elixir experience). We don't currently offer sponsorship.

Company: Fabric (stealth)

Location: NYC or SF

Type: FULL_TIME

Salary: $150-200k USD + significant equity

Project Fabric is an AI‑driven consumer platform to reimagine how people connect in cities, and help solve modern loneliness. In a world where almost every AI is single-player, Fabric is about multiplayer: helping people discover, connect, and spend time together, not just chat with bots. Our product is live in a small, curated beta with some of the most interesting people in NYC, with good early traction. We're looking for a high-impact Tech Lead to design, implement and scale new AI features and systems as we prepare to launch publicly. What we're looking for: - 7+ YOE with a blend of modern web stacks and applied ML - Proven exp building in React eco-system, cloud-infra, MLOps, security - TL experience leading major features for consumer products - Prior work w/ search, recommendations, inference, RAG, performance

Company: Rappo

Location: Remote or Onsite SF

Hi, 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: Replai

Location: Remote with option to work in office SF

Type: FULL_TIME

We're focused in producing high scales of high quality CGI content (think Game of Thrones) using automations (usually in Python) on products as Autodesk Maya. We're growing fast and we're profitable and currently investing in our own growth dozens of millions/year. We're forming a new team of 10 elite developers with the goal of decreasing our animation times to be able to create thousands of hours of the most developed animations for dragons/animals/3D worlds. We're looking for experienced people able to do it all and quickly reach unreasonable and unlogical goals for the top companies in the world.

Company: Trove

Location: Remote (US)

Type: FULL_TIME

Salary: $140k - $185k + Equity

Trove powers recommerce for Patagonia, On, Canada Goose and many other retailers. We're looking for a Senior Engineer to develop our Warehouse Management System that enables circular retail at scale. Tech challenges: ReWMS, a custom WMS written in TypeScript, is optimized for condition grading pre-owned goods during receiving. ReWMS integrates with e-commerce platforms and 3PLs. Requirements: Experience working with warehouse management systems.

Company: Guilde

Location: Remote (Americas Canada)

Type: FULL_TIME

Do you run multiple Claude Code sessions simultaneously, constantly tinker with new prompting techniques, and juggle a half dozen side projects? If you want to live AI all day, every day and build software you actually want to use, join us. We're four repeat founders who previously built StrongDM ($150M from Sequoia). Guilde transforms the firehose of new techniques, tools models into the future of SDLC. I'm Schuyler, one of the founders. If you'd like to join us, email hiring [at] guilde.ai with HN: Staff SWE in the subject line. What you’ll tackle: * Agentic workflows: deterministic orchestration with retries, audits, and cost controls. * Eval policy systems: golden datasets, regression baselines, policy-as-code gates. Integrations: Linear, Datadog, and other developer tools.

Company: Elyos

Location: London, UK

We're the UK's fastest growing AI voice company (~30% MoM) - very deeply focused on the trades industry right now (think your friendly neighbourhood plumbing company). We're a small but experienced team hiring 3 more to join: - Founding Engineer - Founding SDR - Founding Operations Lead (customer success) Tech: GKE, python, postgres, telephony/media streaming, realtime LLMs, contextual eou detection, the occasional REST API.

Company: Hopkins PE

Location: Remote (US/UK time zones preferred)

Hopkins PE is building the first AI agent for private equity. Our mission is to help deal teams move faster, make sharper decisions, and cut reliance on external vendors by embedding AI directly into the investment workflow. We’re backed by leading investors and already have hundreds of firms on the waitlist. Roles open now: Forward-Deployed Engineer (FDE): Embedded with PE firms, rapid prototyping, adapting our AI to live deals (Python, FastAPI, React, Postgres, cloud). Embedded Analyst / Outcome Lead (Echo): Ex-PE/IB/consulting operator, mapping pain points, defining outcomes, and working alongside FDEs to deliver value. If you thrive in ambiguous, high-stakes environments and want to shape how AI transforms private equity, send a note + CV to [email protected].

Company: Queueco

Location: London, UK

Type: FULL_TIME

We are a proprietary trading firm operating in conventional as well as cutting-edge alternative markets. Our strategies run 24/7 without manual intervention powered by low-latency infrastructure and the latest machine learning techniques. We’re a meritocratic and lean team of highly-motivated scientists and developers and as such value technical ability more than politics: what matters is how good your code is, not how well you sell yourself. We spend no time dealing with clients, customers or investors and instead focus on growing our business by building better technology. If you are a talented research engineer with strong developer skills who likes to work on low latency systems and large data science pipelines then please get in touch. We are also happy to sponsor exceptional talent. You will be embedded within research and serve as primary resource for diverse software engineering challenges within the team. Your responsibilities will include efficiently processing extensive amounts of market data or improving the computational performance of live strategy code.

Company: Got Seats

Location: Remote (USA)

Type: CONTRACT

Salary: $65-85/HR

Got Seats is building a ticket resale marketplace similar to Stubhub or Seatgeek. We have exciting and critical features that those marketplaces lack. We are well capitalized and have excellent talent across engineering, product and business development. We are a small team. You will have the opportunity for huge impact and ownership, and the trust to move fast and break things! We are building our MVP now. We are looking for a Senior FE engineer with 5 years React experience and 1 year Next.js experience. The role is fully remote, full time (40 hours/week), contractor (1099). You must be located in the US and able to work according to the Eastern time zone. This is a long term engagement, not a short term contract. We hope to graduate this role from 1099 to standard W2 with benefits as the company grows. A successful engineer in this role will be detail oriented, product focused, appreciate engineering excellence, and have outstanding communication skills. Startup experience is a plus!

Company: Tasty

Location: Remote

Type: FULL_TIME

Salary: We tailor packages (salary/equity/bonus) to impact. The more value and revenue you drive, the more you earn.

We’re hiring Senior Full-Stack Engineers at Tasty to build the internal CRM platform that powers our teams and growth. You’ll ship real product, own meaningful slices of the stack, and help define the architecture as we scale.

Company: CloudTrucks

Location: San Francisco, CA

Type: FULL_TIME

CloudTrucks is a very well funded series-B startup in Trucking domain. Our main goal is to help trucking entrepreneurs make more money and worry less about overheads. We have openings for mid level and above SWE roles. Please note that at this time we're only accepting applications with at least 3 years of relevant experience.

Company: CoPlane

Location: Remote (US/CAN Timezones)

Type: FULL_TIME

The world doesn't need another ERP. CoPlane is building the Agentic Orchestration platform that enables enterprises to orchestrate intelligent processes across their existing systems. Founded by ex-Stripe/Segment product and tech leads, we're changing how businesses operate their backoffice - helping them scale intelligence not headcount. We're looking for exceptional engineers to grow our small founding team of engineers that include ex-founders, open source contributors (authors of neovim and neverthrow), and architects of petabyte-scale data platforms. You'll work with billion-dollar enterprises solving their hardest, most mission-critical automation problems. If you're excited about working at the nexus of data, automation and AI, and want to make a significant impact in an early, well-capitalized startup with large enterprise design partners, we'd love to hear from you. Roles: Platform Engineer (Infra), Product Engineer and Forward Deployed AI Engineer.

Company: Kove

Location: Remote (US), NYC

Type: FULL_TIME

Salary: Ground-floor equity. Direct impact. Frontier AI challenges.

Reimagining property management for 10M+ small landlords — no dashboards, just chat. MVP: lease parsing, rent reminders, maintenance triage, Q A agents. Next: predictive + financial agents → Kove as the AI OS for landlords.

Company: Black Canyon Consulting (BCC)

Location: Bethesda MD

Type: FULL_TIME

Salary: Competitive compensation!

Canyon Consulting (BCC) is hiring Platform Systems Engineers of all levels to join our team at the National Center for Biotechnology Information (NCBI). Our team is dedicated to building cutting-edge tools and systems. Our mission is to empower developers across NCBI to build, deploy, and manage software, data, and web services that make a real difference in the lives of millions of Americans. Your contributions will play a crucial role in modernizing government technology infrastructure, fostering innovation, and ultimately making a tangible impact on communities across the country and globally. This is your chance to be part of a mission-driven team that’s shaping the future of digital government. Tech: Linux, k8s, Service Mesh, Kafka, GitLab, ArgoCD, Elastic APM, Python, C++.

Company: RBF Capital

Location: San Francisco, CA

Type: FULL_TIME

Quantamental hedge fund with a 25+ year winning track record; small, under-the-radar; direct access to principals. Building an internal data lake and AI/ML agentic RAG platform to make market, SEC, and alt-data instantly searchable. Hiring: (priority) Lead AI Platform Engineer: Design data platform architecture with ingestion pipelines, storage layers, and modern stacks; Build ML workflows for automated analysis and pattern recognition. Financial Engineer: Architect industry-specific quantitative models and factor definitions; Define and oversee rigorous model validation to ensure financial accuracy.

Company: Thrivia

Location: REMOTE

Type: INTERNSHIP

Thrivia is a creator-led travel experiences platform — think curated trips, retreats, and events powered by creators. We’re very early stage and looking for founding interns who want to build 0 → 1 with us: Software Engineering (MERN + TS), Graphic Design, Influencer Marketing, Founder’s Office (Ops/Strategy), Entrepreneur-in-Residence (EIR). Remote, flexible, and high-impact — you’ll work directly with the founder (ex-Apollo.io, Walmart, Microsoft).

Company: Traba

Location: NYC

Type: FULL_TIME

Traba is building a world where the global supply chain operates at peak efficiency. We connect industrial businesses with reliable workers to fill open shifts, empowering both businesses and workers to reach their full productivity and potential. We’re a ~150-person team, backed by Founders Fund, Khosla Ventures, and General Catalyst. As we scale, we’re incorporating AI across our stack—improving marketplace efficiency, optimizing worker–job matching, and helping businesses predict and plan their labor needs. We’re hiring engineers to help us build intelligent systems that scale our marketplace, optimize matching, and power thousands of shifts each week.

Company: Flok Health

Location: ONSITE Cambridge UK

Flok builds and runs AI (but not LLM-based) physiotherapy clinics for the UK National Health System. We’re a real clinical service, built on software solving hard problems across expert systems and real-time video streaming. Flok is both hospital and a D2C product company, and creating something better than the sum of its parts.

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: PostHog

Location: REMOTE (all remote) | Hiring GMT-8 to GMT+1

Type: FULL_TIME

PostHog helps engineers build better products by combining product analytics, feature flags, session replay, a data warehouse, CDP and many more. We are growing through more autonomy and transparency not through process. We have a ton of scale and a bunch of super interesting technical problems to solve. We're building 20 more products over the next couple of years, so you could end up building one of those. We need: product engineers, developer who loves writing and a developer who can do marketing, sales ops backend engineer, clickhouse engineer, technical account executives and technical customer success managers.

Company: Marex

Location: Chicago, US

Type: FULL_TIME

Salary: ~$175,000

We're looking for an enthusiastic senior Typescript / React engineer for our clearing team. Marex builds trading and risk systems for commodities, energy, and financial markets. You’d work on real-time trading platforms and various supporting apps.

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.

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: Proven Software

Location: REMOTE (US)

Type: FULL_TIME

Salary: $65k-$85k

Proven is a start-up software company delivering a modern electronic medical record (EMR). Proven’s Founders and Executive team have decades of experience successfully growing and scaling companies in healthcare. Our mission is to deliver an innovative and impactful solution to healthcare providers leveraging modern technology. At Proven, we are looking for bright, hard-working, and highly motivated individuals who want to be a part of our fast-growing company. You will be responsible for: -testing and validation -documentation and reporting -collaboration on requirements, UX/UI and workflow

Company: Nova Credit

Location: Remote (US, Canada)

Type: FULL_TIME

We're building a unified platform for credit and financial data to power financial inclusion globally. Our mission is to unlock economic opportunities for consumers historically excluded from traditional credit systems by transforming diverse data into actionable risk insights. We are YC company backed by investors from Canapi Ventures, Kleiner Perkins, General Catalyst, and Index Ventures. Hiring software engineers from Mid-Level to Staff. You'll work on enterprise-grade APIs, data integrations, advanced analytics, and seamless user experiences. We're looking for engineers who thrive in fast-paced environments and want to make a meaningful impact on financial inclusion.

Company: Kadoa

Location: Remote

Type: FULL_TIME

We’re automating web scraping at scale with AI. But we can't do it alone. We are looking for people who share our passion for software craftsmanship, data, and AI. We are growing fast, have a “no-bullshit” policy, and try to minimize the distance between the code you ship and the customers who use it. We have openings for: Web Scraping Engineer and Frontend Developer/UX Designer.

Company: RevEng.AI

Location: London, UK

Type: FULL_TIME

RevEng.AI is building foundational AI models to identify malicious threats and security vulnerabilities inside software. We're a seed stage startup having raised $4.25m from top tier VCs across the US and Europe. You’ll play a key role in advancing our platform pushing the boundaries of AI-driven program analysis. We're looking to hire security engineers and security researchers with experience in program analysis, reverse engineering, vulnerability research, machine learning, and malware analysis. * 5+ years of experience * Masters or PhD in a relevant area for the security researcher role * Hybrid working environment but ideally commutable to London, UK * Solid understanding of software engineering design * Ability to thrive in a fast-paced start-up environment.

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: P2P.org

Location: Global

Salary: Competitive pay ($ or crypto)

P2P.org is the largest institutional staking provider with $10B+ TVL and 20%+ restaking market share. We are hiring for multiple positions: - Product/ Blockchain Analytics – SQL + Python, Web3 a must. - Junior Analyst (urgent) → SQL, Excel, reporting. - Analytics Engineer → Build data marts automation pipelines. - Financial Assistant (Tres Finance focus) - Manage crypto asset data, reconciliations, automation (Tres, QuickBooks, Fireblocks, IBM PA). 3+ yrs finance/accounting; crypto exp a plus.

Company: Maiven

Location: Remote (US)

Type: FULL_TIME

Maiven is the software platform automating home decarbonization. We’re a small, mission-driven team punching way above our weight: we have large utility customers, contracts in multiple states, and a growing pipeline of programs launching later this year. We’re venture backed and moving fast. We’re hiring two engineers: Full-Stack Engineer – NestJS, React, Tailwind, TypeScript, Python, Postgres, AWS, Lambdas. Someone who cares deeply about UX and moving fast while delighting the user. Energy Modeling Engineer – Python, pandas, AWS, modeling frameworks (ResStock, EnergyPlus, etc.). Experience with energy programs or building science is a huge plus. Looking for builders who want real ownership, thrive in early-stage startups, and move with urgency and care.

Company: Friendly Captcha

Location: REMOTE within EU

Type: PART_TIME

At Friendly Captcha we do one thing and we do it well: we protect websites from malicious actors and bots. We provide privacy-friendly and accessible anti-bot solutions that don’t annoy users with tasks like clicking fire hydrants. We make the internet a bit better every day by winning over customers currently using Google reCAPTCHA. We’re looking for an engineer whose focus will be on using data to improve our bot detection and protection. Telling apart bots from genuine users is vital to our product. If possible, we prefer to keep things simple (perhaps boring is the right word even?) - choosing an if/else rule over a neural network. Good knowledge of the web is always useful in this company. At our scale we are looking for generalists more than specialists. The role is more about enabling for easy experimentation, data exploration and being creative in anti-bot approaches, than building the perfect ETL pipeline.

Company: Goji Labs

Location: REMOTE (Americas)

We have multiple openings for Product Designers at Goji Labs, a fast-growing, strategy-first software studio.

Company: 7Gen

Location: Montreal - Hybrid (Canada) and Brazil - Remote

Type: INTERNSHIP

7Gen aims to develop EVaaS (EV as a Service) for small- and medium businesses in North America. Our software aims to make EVs a better experience than combustion engines. We are currently raising our series B. We are scaling our team with hybrid positions in team in Montreal and remote in Brazil for internships. You'll engage directly with me, Anton, CTO (ex technical cofounder and former machine learning engineer at Bain BCG).

Company: PermitFlow

Location: New York, NY

Type: FULL_TIME

Salary: $200K-275K + equity; $125-240K + equity; $125K-240K + equity

PermitFlow’s mission is to streamline and simplify construction permitting in the $1.6 trillion United States construction market. Our software reduces time to permit, supporting permitting end-to-end including permit research, application preparation, submission, and monitoring. We're looking for customer-obsessed, ambitious, and hard-working teammates who are excited about solving a real-world problem with technology at its helm.

Company: TigerData

Location: Global

Type: FULL_TIME

We began in 2017 as Timescale, focused on making PostgreSQL the best database for time-series data. As our customers evolved, so did we. TigerData is the fastest PostgreSQL platform for real-time, analytical, and agentic applications. Built for a new era—where data streams nonstop, insights happen instantly, and intelligent agents reason and act—TigerData delivers speed, scale, and simplicity on the foundation developers already trust: PostgreSQL. Trusted in production with 3 million databases across 2,000+ companies worldwide. We’re the creators of TimescaleDB and pgvectorscale, and backed by $180 million from top-tier investors.

Company: Freetrade

Location: London

Type: FULL_TIME

Salary: £75k-£140k

Freetrade is a commission-free investing app used by over 1 million people in the UK. Our team is expanding, and we’re seeking software engineers to evolve and scale our core investing platform. In this role, you will be instrumental in building and maintaining reliable and trustworthy systems for trade execution, clearing and settlement, asset servicing, and internal operational tools. You will also play a key role in shaping our technical direction and mentoring other engineers as our team grows. Tech we use: TypeScript, Node.js, Postgres, and GCP. Note: We are three days in the office, located just around the corner from Old Street. We don’t sponsor visas at the moment.

Company: Blacklane

Location: Berlin / Barcelona / London

Type: FULL_TIME

We are Blacklane, a global, premium chauffeur service company, operating in 50+ countries. As part of our engineering teams, you will help develop the services that power Blacklane, work on improving our back-office system, or solve problems around our products which allow business partners to integrate with the Blacklane platform.

Company: Freed

Location: SF

Type: FULL_TIME

Doctors are overworked, burnt out, and are quitting in masses. I'm head of engineering at Freed, where we combine clinician love with the latest AI tech and intense execution to create products that make clinicians happier. Our first product is an AI scribe that automates medical documentation. - Acquired 20,000 paying and loving clinicians, $20M ARR in under two years - Generate 70,000 patient notes daily using ASR and LLMs, and have saved clinicians 2.7 million hours - Created a consumer-grade UX, with greater enthusiasm than any product I've seen - Raised $30M led by Sequoia Capital, and are rapidly expanding our product offering. Our engineering culture emphasizes speed, end-to-end ownership, responsibility, and independence. Our tech stack is React and TypeScript / Node.js.

Company: OpenRent

Location: London, UK

Type: FULL_TIME

Salary: 100k+ (based on experience) + quarterly bonus

Come and fix it. OpenRent is a force for good in an industry tarnished by rip-off agencies. Enabled by an unrelenting focus on technology, we now let more properties than any agency in the UK. In the last 12m we let over £50 billion worth of property, to over 7 million registered users, without ever charging any admin fees. You'll be working on solving every aspect of the rental journey, from models to predict the right price of a property, to building the future of property management, all to help tenants find their dream home, and landlords their ideal tenant. We're VC backed, profitable, and have plenty of ambition to maintain our fast growth in this absolutely massive market.

Company: Humaans

Location: London (Hybrid, 3 days/week)

Type: FULL_TIME

We’re building a best in class HR platform that automates people operations end-to-end for globally scaling companies. 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, and 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. 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.)

Company: Uncountable

Location: New York City, San Francisco, 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: PlantingSpace

Location: Remote (EU time zone) + Quarterly Meet-ups

Type: FULL_TIME

We’re building an AI system for analysts and scientists, based on a fundamentally new approach to reasoning and knowledge representation. Our approach differs from LLMs in that we compose algorithms symbolically to represent complex knowledge, and perform probabilistic computations. This enables the AI-driven application of statistical models to different problems, while providing the user with a verifiable reasoning path, and an assessment of the uncertainty in each answer. We are developing applications for analysis and research in domains such as Finance, Strategy Consulting, Engineering, Material Sciences, and more. Ready to push the frontier of automated structured reasoning? Check out our current openings for Program Synthesis Engineer, Product Software Engineer, Senior Product Manager.

Company: Narrative I/O

Location: New York, NY

Type: FULL_TIME

Salary: $120k to $200k USD

Narrative I/O has been building a data collaboration platform designed for simplicity and ease of use since being founded in 2016. Our primary strength is functioning as a data marketplace where we differentiate ourselves by automatically standardizing data, making platform data accessible through the Narrative Query Language (NQL), giving data providers the ability to define row-level access and pricing policies, and making it easy to deliver data to a variety of destinations using our Connector Framework. We operate two flavours of our platform: An AWS-based implementation that runs on our infrastructure, and a Snowflake-based version running inside the user's Snowflake account. We are a small, remote-first team looking for great developers who want to jump in and take major systems and user-facing features from design to launch. While the company's headquarters are in NYC, the development team currently includes engineers working from the US (California and New York), Canada (Alberta, British Columbia, and Québec), Poland, and Serbia. In brief, the technologies we use are: Backend: Scala, Spark, Apache Iceberg, Apache Calcite, Cats, Cats-Effect, Http4s, FS2, Doobie, Deequ, Axolotl, BentoML, and HuggingFace Transformers. Frontend: Typescript, VueJS, Nuxt, Vite, and Cloudflare Pages. Operations: AWS (ECR, ECS, EMR, RDS, S3, etc.), Datadog, Docker, Terraform, with some burgeoning use of EKS/Kubernetes.

Company: Ataraxis AI

Location: NYC preferred, Remote US possible

Type: FULL_TIME

We are developing AI-native tools to help physicians select optimal cancer treatment. We recently raised a $20m Series A and I'm looking for a software engineer with strong backend skills who likes devops work. This role will include work on platform, infrastructure, and data. However, we are also looking for someone who will lead work on security compliance (from HIPAA and SOC2 to regulatory submissions). You need to be proficient with Python.

Company: Justworks

Location: Hybrid (US: New York City, Canada: Toronto)

Type: FULL_TIME

Justworks is helping businesses get off the ground by enabling them to focus on running their business. We solve HR issues. We’re data-driven and never stop iterating. And, we are hiring across the board! If you’d like to work in a supportive and entrepreneurial environment, are interested in building something meaningful, and having fun while doing it, we’d love to hear from you.

Company: Channel3

Location: NYC

Type: FULL_TIME

Salary: $120–200K + 0.5–1.5% equity

Channel3 is hiring a Founding Engineer to help us build a database of every product on the internet. Our API lets any AI app or agent add shopping capabilities and earn commission on sales. As commerce moves from in-store, to online, to AI-native, this universal product catalog becomes critical infrastructure. We see Channel3 becoming as foundational to AI commerce as Stripe is to payments or Plaid is to fintech. We just closed a $6M seed round led by Matrix (Apple, FedEx, AfterPay) with participation from Ludlow (Honey, StockX), Y Combinator, and Paul Graham. We're live with 500+ developers on our API and millions of products processed daily. We're looking for engineers who want direct ownership of technical decisions, love solving hard problems at scale, and want to help build our team and culture from the ground up.

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. Build product features from conception to deployment, collaborating closely with our CPO and working across the entire tech stack to deliver AI-powered features that drive enterprise adoption. Contribute to our deployment infrastructure and lead integrations with customer cloud environments. You’ll work hands-on with the latest cloud and container technologies, ensuring our platform runs reliably and securely for some of Europe’s top enterprises. Three-month rotational program with a pathway to high-impact commercial roles. You’ll join a cohort of technical, customer-facing talent who build deep product expertise and commercial acumen from day one.

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 and Senior Backend Engineer. Responsibilities include leading a small team, building core backend systems, and integrating with AI/ML engineers.

Company: Howie.systems

Location: Vienna, Austria

Type: FULL_TIME

Salary: Competitive salary + equity possible

We’re building Howie.systems, an AI platform for the architecture/engineering/construction industry. Our focus: automating knowledge extraction and retrieval from large document sets (100k+ files, multi-tenant, multi-user, with Supabase/Postgres + pgvector under the hood). We’re looking for a Full-Stack Engineer with a love for strong typing and AI. Must: Next.js, Supabase, very TypeScript-safe mindset. Super plus: experience with AI frameworks (Vercel AI SDK, Mastra, LangChain, etc.). Should have good experience with AI Coding tools like Cursor, Cloud Code. You’ll help us scale our ingestion, RAG, and AI interaction layers into production-grade tools dealing with enterprise customers. Work on a fully modern stack (TS, Supabase, Vercel, AI frameworks).

Company: Thatch

Location: Remote (US)

Type: FULL_TIME

Thatch is a startup on a mission to build a healthcare system people love. We're combining the latest innovations in fintech with recent legislation in the healthcare space to take a new approach to health benefits. We're seeing traction with companies of all sorts of shapes and sizes across the country, so we're scaling up our team to meet the increasing demand. We're also lucky to be backed by world class VCs (a16z, Index, General Catalyst, and more). We've built up a particularly talented group of engineers who've been drawn to our high trust, high autonomy culture, and I think you might be a great fit!

Company: Class Central

Location: Remote

Type: FULL_TIME

I'm looking for a senior engineer to take ownership (from me) of Class Central's codebase and infrastructure. We help tens of millions of learners find the best courses on any subject. Small team (6 people), profitable, independent, and around for 13+ years. No VC drama, just sustainable growth. Stack: PHP 8+, Symfony 7+, MySQL, Elasticsearch, Google Cloud. We keep it simple and productive. Own the full stack, help shape our product, and build pragmatic solutions for our current scale. I am looking for product-minded engineers who are focused on user experience and driven to understand the business. I'm building a new cross-functional product team from scratch (engineering, product, design). Looking for a foundational engineer who can mentor, collaborate, and help define how we work together. Remote-first, async, very few meetings. Real autonomy, real impact. Fair warning: being fully remote means no annual Halloween Heists.

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 currently hiring for the following four positions: Staff Software Engineer, Formal Verification Engineer, Software Engineer, and Formal Methods PhD Intern.

Company: Ageospatial

Location: Remote or EU/Switzerland

Salary: The pay is low at the start, but profit sharing is included in all phases.

This will be the most challenging (but rewarding) build of your life. You'll be joining a kind smart team of engineers that delivers at the highest level. You're not here for the early startup paycheck; instead, you're in for the long game and care about building the most meaningful product of your career. We are looking for killers; this will be fun and you'll be fairly rewarded. You think like an architect, execute like a builder and vibe-code like AI. You ship fast, have high standards, and maintain a low ego. Technologies include Agent-as-a-Service architectures, Agentic AI, Langchain, LangGraph, Distributed/Parallel computing, Memory management, Autoscaling, AWS, Kubernetes, Microservices, Message Queues, Django, Node, DuckDB (optional), WASM (optional), DeckGL (optional).

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: Trak

Location: Remote US (core hours are Eastern US)

Type: FULL_TIME

We are a rapidly growing, institutionally funded company at the forefront of the fastest growing segment in the automotive industry. Our cutting-edge service is transforming the collision center industry, and our innovative software is vital to our success. The engineering team builds systems that deliver exceptional user experiences and drive value for our customers. We are committed to creating impactful software solutions while fostering a collaborative and inclusive work environment. We are seeking an experienced Software Engineer to join our team. Our multi-tenant architecture includes React with Typescript backed by Node and PostgreSQL and is deployed to Google Cloud Platform using git actions and Terraform. Background data wrangling often involves Python and BigQuery. We are actively hiring for: - Front End Engineer - Senior Back End AI Engineer

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. You'll architect and build AI workflows, contribute to system design, collaborate closely with scientists, and help define our technical culture.

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. Please see the Full Job Description for requirements and more details about our Tech Stack.

Company: HomeVision

Location: Hybrid SF Remote

Type: FULL_TIME

Salary: $100k-$220k + equity

We have three open roles: Engineer - Hybrid SFO (junior-to-senior software engineer to work with the CTO directly), SRE - US Remote (broad role on the platform team including AWS infra with terraform, software engineering, and IT), Analytics Engineer - US Remote (managing the data warehouse, building durable and ad-hoc reports in SQL and Python, and doing deep analysis). New-grad and junior engineers particularly encouraged to apply.

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’re looking for Software Engineers, Electrical Engineers, and Marine/Mechanical Engineers with various skills and experience levels. You will ship code to robots, test on the water, move fast, own big surface areas, and work directly with military operators.

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. We’re looking for a Product Engineer.

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, image simulation, high power microwave systems, modeling and simulation, laser systems modeling, AI/ML including physics-informed neural networks, human body thermoregulation, computer vision and image processing, high performance computing, computer aided design, and more. We emphasize high quality code and lightweight processes that free software engineers to be productive. Experience required includes a Bachelors degree in physics, engineering, math, computer science, or a related field, preferably 3+ years of experience or a Masters or PhD in lieu of experience.

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

Company: Meedan

Location: Remote

Type: FULL_TIME

Salary: $160k - $180k

- nonprofit focused on building digital tools and community-led programs that enhance the accessibility, reliability, and distribution of information - when and where people need it most.- Seeking a Senior Software Engineer with focus on AI/ML to lead development of our knowledge ingestion and question answering service.- Responsible for the engineering backbone of our Python-based microservice.- Implement ingestion pipelines, optimize graph storage, and integrate retrieval and answering workflows into a reliable, cost-effective service.- Work closely with researchers, product managers, and engineers to translate experimental insights into production-grade code.- If you’ve built scalable AI-driven systems, productionized ML pipelines, or delivered high-quality backend services, we’d love to hear from you.- Requirements: 8+ yrs prof software eng exp/leadership roles, Python, ML, CI/CD. Knowledge graphs (Neo4j) huge plus

Company: Fold

Location: Remote (US Only)

Type: FULL_TIME

Salary: competitive salary + equity

Fold makes Bitcoin easy through great UX and rewards. We’re building the future of Bitcoin payments and need senior engineers to help us scale. Senior Frontend Engineer – Work on our React Native apps, ship features and own architecture. • 5+ years exp, React Native, TypeScript, Expo • Bonus: Fold user, passion for Bitcoin Senior Design Engineer – Build and scale our design system in React Native. • Strong in React Native, TypeScript, modern component libraries • Bonus: Storybook, Framer Motion, design system expertise Lead QA Engineer – Own automation, quality strategy, and mobile release confidence. • 5+ years in QA, 2+ leading QA or owning strategy • Experience with iOs and Android automation, Maestro/Detox/Appium Perks: competitive salary + equity, 401k match, unlimited PTO, full benefits, yearly vacation stipend, no Monday meetings, Bitcoin starter pack.

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: 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: Impression Ventures

Location: Toronto, ON

Type: FULL_TIME

We back category-defining fintech companies. Learn venture capital first-hand and put AI to work on it—apply LLMs and modern AI methods across sourcing, screening, diligence, and portfolio support. Great for recent grads (0–2 years) in CS/Engineering who are passionate about AI and startups and want to build, grow with a VC fund, and potentially become a founder.

Company: Y Combinator

Location: San Francisco

Type: FULL_TIME

Salary: YC offers highly competitive compensation and benefits.

YC itself hires software engineers from time to time. Many people don't know that YC has a small but very important software team. We run several websites - not just this one, but also workatastartup.com (the main way YC companies hire), a social network for YC founders, and the core infrastructure that YC itself runs on. Recently, we've been spending most of our time building our own AI agents. Over the last year, YC has mostly funded AI agent companies, so it's been cool to go really deep building our own AI agents too. We're building agents to automate every aspect of what we do, and pushing the limits of what's possible with the current models to do it. An unusual aspect of being on the YC software team is that you'll get full access to the YC program, founders and partners. The YC batch runs in the same building we work out of, so there are talks with famous founders happening most nights, right downstairs in our building. If you want to start a startup someday, working at YC would be an excellent jumping off point - several YC companies have come from team members who decided to start their own company. YC works fully in-person in SF. We're happy to help you move here if you're in the US already. Unfortunately we can't sponsor new visas, but we're happy to transfer existing ones.

Company: Turnstile

Location: REMOTE (US/Canada)

Type: FULL_TIME

Salary: $185k-205k salary + equity

We're a small (23-person) team of repeat founders and seasoned operators building a next-gen quote-to-cash platform. This is a tight-knit and senior crew — most of us have 10-25 years' experience, much of it together. The last company we built, Second Measure (YC S15), scaled to 70+ people and tens of millions in revenue, and was ultimately acquired by Bloomberg in a landmark deal. We've built a category-defining product and are now gearing up to scale. We're looking for our third Product Manager to help shape the future of our platform. We're well-funded by top investors (First Round plus more to be announced), fully distributed, and known (and recognized) for building intentional, inclusive culture. We offer competitive global rates (SF salary + equity), equal pay by level, and comprehensive, family-friendly benefits. I'm Mike, one of the founders— if interested, apply here and mention this post.

Company: Strum AI

Location: Location negotiable

Type: FULL_TIME

At Strum, we're reimagining technology that powers global supply chain using a fresh AI-first approach. Most supply chains are still stuck with Excel or enterprise tools that take months (and $MM) to adopt. Our mission is to lower that barrier — making it possible for any business, big or small, to access modern forecasting, inventory, and planning solutions in days, not months. We’re on our journey to democratizing supply chain technology. As our first engineer, you’ll be working with the founders (former Supply chain/tech directors at Amazon who have built key components of Amazon's supply chain) to develop the core product from the grounds up (involves application of LLMs, deep learning, and optimization). If you have mid to senior level experience in software development, have built SaaS applications, understand ML-Engineering, and love building 0-1 products, we would love to talk to you.

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. I'm one of Lumo's core devs, write to me directly at marc dot dupont, domain proton ch, with HN in the subject.

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.

Company: Solitude Labs

Location: Miami Metro Area

Type: FULL_TIME

Salary: 120k - 160k + Equity Package

At Solitude Labs, we're securing the future of the energy grid. Solar, batteries, EV chargers, and other distributed energy resources (DERs) are transforming how energy is produced and consumed. While they present endless opportunities to modernize our grid to make it more resilient and meet demand, they also create more entry points for bad actors to compromise the grid. We're hiring a founding engineer to lead architecture and development of a decentralized, zero-trust cybersecurity platform for the distributed grid. You'll work across embedded and distributed systems, iterate quickly, and influence the core product. Tech experience: 5+ years software engineering Strong in Rust (preferred), or C/C++ Experience with grid tech (SCADA, EMS, ADMS, RTUs, PLCs) Networking protocols: QUIC, TCP/IP, UDP US citizenship required This is a zero-to-one role. If you want to help protect critical infrastructure and innovate, send your resume over to [email protected]

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. Open Roles: Lead/Senior Software Engineer, Acceleration (Barcelona), Lead/Senior Software Engineer, Client Platform (Barcelona), Lead/Senior Software Engineer, Sitter Experience (Barcelona), Software Engineer II, Orders (Seattle).

Company: CVector

Location: USA

Type: FULL_TIME

Salary: $75k – $120/yr + 0.3% – 1%

CVector builds software to make energy systems smarter, more reliable, and autonomous. We integrate real-time data visualization and analytics to help power generation stations, chemical plants, and other critical infrastructure make informed decisions in rapidly changing environments. You'll help create intuitive, robust web apps and backend systems, shaping tools that directly impact industrial operations and energy reliability. Remote-first team with occasional domestic travel to connect with users directly. Recent graduates may need to relocate. We're looking for a passionate Full Stack Software Engineer comfortable working across our stack (Python, Typescript, React, Supabase, MQTT, TimescaleDB, PostgreSQL, AWS, FastAPI).

Company: Friendsurance

Location: Berlin, Germany

Type: FULL_TIME

Dealing with insurance should bring a smile to your face - We’ve been chasing that bold mission for 14 years — still founder-led, still independent, and one of the very first Berlin fintech startups that is still around and thus deeply connected. We operate in the bancassurance domain and serve German Banks and Insurances, exploring international expansion. Our flagship product is a B2B2C Multi-Tenant Whitelabel SaaS platform. Our team is small, our culture is high-supportive/low-directive, and our stack is pragmatic Java. We experiment with AI prototypes, but we value engineers who care more about clean code and thoughtful tradeoffs than the latest hype. We’re hiring for Germany (hybrid, relocation supported) — if you’re curious, say hi!

Company: Watchful

Location: Auckland, New Zealand

Type: FULL_TIME

Watchful is disrupting the security monitoring sector with AI-accelerated camera monitoring. We’re currently growing rapidly and are looking for talented individuals to help scale up our capacity, deliver excellent user experiences and ensure our systems are air-tight and resilient. We will briefly be hiring for the following roles: Software Engineer Roles ( = Intermediate): - 5+ years experience as SWE - Generalist, product-minded software engineers that can switch between frontend, infra, backend and more - High impact role, directly influencing product/engineering direction - Self-driven, shows initiative, autonomous - Join a team of 4 existing engineers. Designer role: - 3+ years of design experience - Ability to code simple frontends like marketing websites (using AI is fine) - High influence/impact on design direction - Self-driven and able to deliver without much hand-holding - Work directly with lead designer. Site Reliability Engineer (SRE): - 5+ years of experience - Expert at terraform, cloud services, observability and CI/CD - Able to take initiative to secure, lock down and make reliable the parts of the platform you see fit - Opportunity to drive the SRE culture and make the platform bulletproof.

Company: Sumble

Location: Remote

Type: FULL_TIME

Sumble is building a knowledge graph from web data with a focus on data for go-to-market teams. We use sources like job posts and resume data to identify org structure, tech stack, and key projects. Our product already has strong product-market fit, early revenue, and happy customers. We are a team of 15, including 10 engineers from companies like Google, Meta, Stack Overflow, and Kaggle.

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’re 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.

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: Oneleet

Location: US NATO Countries

Type: FULL_TIME

Salary: Competitive salary and 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. 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.

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: Tufalabs

Location: Zurich

Type: FULL_TIME

Salary: 100-130k CHF

Tufalabs is an independent AI research lab in Zurich, focused on high-impact academic-style AI research and large-scale LLM development. We care about compute (currently, 6× DGX B200, 2× NVL72 GB200 incoming). Our mission is to push the frontier of AI science while open-sourcing results and building the engineering muscle to pre- and post-train cutting-edge language models. The ultimate goal is automating AI research, with a strong focus on alignment and safety. I am looking for a COO to help scale from ~10 to ~15 people. Ideally you care about AI research, you are excited about the idea of helping us move faster, you like to keep red-tape low, you are a technical person who can create automated processes, and have experience owning and running operations at a startup. We are also open to senior researchers, comp negotiable.

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: 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 (because in a way it's the spirit of our company), 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: Tandem Health

Location: Stockholm, Sweden

Type: FULL_TIME

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: ShieldAI

Location: Remote (US) or San Diego, CA

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 into 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: 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).

Company: Dash0

Location: Remote EU

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: 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: 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. Check out the progress we've already made on Atrium, our operating system for robotics. We're rapidly scaling up operations and we need experienced, generalist engineers who can build the systems that manage all of that complexity. If you think that 'full-stack' could reasonably mean debugging firmware, mixing buckets of mortar and writing React components, we are looking for you. Robotics experience not required!

Company: AllTrails

Location: San Francisco / Remote

Type: FULL_TIME

Salary: Competitive salary, equity, comprehensive benefits, unlimited PTO, monthly 'Trail Days'

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: 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: 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: 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.