Jobs

Company: Reef Technologies

Location: REMOTE (EMEA/APAC)

Type: CONTRACT

Salary: 45-70 USD or 180-280 PLN per hour

We’re looking for Python backend engineers to work on a trustless supercluster of performance-proofed GPU-enabled sandboxed docker container runners controlled by truly decentralized algorithms. If you found it interesting, join Reef Technologies and tackle complex technical challenges on your own terms. Contribute from wherever you like, set your own time commitment, see how we work in our handbook, and influence the way we operate through our Sociocracy 3.0 decision-making process. We're looking for someone with 5+ years of programming experience, including at least a year with Python (including opensource and significant personal projects).

Company: Labor Solutions

Location: Remote (India)

Type: FULL_TIME

We run a worker wellbeing and compliance platform used by global buyers and their supply chain sites across Asia. We're in the middle of a meaningful migration and platform buildout — you'd be joining at a point where architectural decisions matter and your fingerprints will be on the system for years. The stack is Django + Python on the backend, dbt for data transformation, React/Next.js on web, and Expo/React Native for mobile. We run on AWS and Azure. Currently, we're migrating legacy services while simultaneously shipping new features — so you'll need to be comfortable holding both in your head. We're looking for strong Python/Django chops, comfortable with React/Next.js, and you understand what a data pipeline does. Cloud experience on AWS or Azure is needed, and you care about code quality without being precious about it. This isn't a greenfield startup, but real work with real users and technical debt. Fully remote, India-based.

Company: Recover Systems

Location: Portland, Maine

Type: FULL_TIME

Salary: 130-160k + meaningful equity from first option pool

Recover is building the infrastructure for all restoration work, streamlining how remediation contractors run jobs while we handle the red tape and headaches. Recover is a platform born from insurance requirements, financial ledgers, spatial intelligence; built to collapse hundreds of messy painpoints into a single flow. We've just closed our seed round, live desktop and IOS app and are ramping up to convert demo offices to live deployments and rolling out to 50+ waitlisted offices. We're sprinting fast to cover the last features in V1 roadmap including subcontractor portal and insurance disputes workflows and one-click materials marketplace. We're hiring for a specific type of engineer: PM-minded engineer for messy domains. The rare hybrid who can sit across from an insurance adjuster, a franchisee, and a senior estimator in the same day, walk away with the actual workflow in their head, and collapse a scattered process into a single screen the technician actually wants to open. Owns the full loop: stakeholder interview → spec doc → spreadsheet model → prototype → production. Equal parts taste, insight, and stamina. Ships features that flow smoothly and improve how work gets done.

Company: Longshot Systems

Location: London, UK, hybrid

Type: FULL_TIME

Longshot is at the cutting edge of sports betting modelling R D and has been producing market beating models for a decade. We need senior engineers across platform and strategy. Excellent pay and benefits, flexible hybrid working, office in central London. Very high performance environment with high trust. Team small but growing. Sports knowledge optional, passion and deep technical experience mandatory. Come and join the fun in the new world of sports betting markets.

Company: Instinct Science

Location: REMOTE (US)

Type: FULL_TIME

Salary: $150–175k

We're the AI platform for veterinary medicine — cloud-native EMR, AI scribing (ScribbleVet, acquired early 2026), clinical decision support, and Plumb's drug reference. Instinct is the operating system vet teams run their day on, from charting through clinical decisions to pharmacy. Own features end-to-end.

Company: Stream

Location: Amsterdam (NL), Skopje (North Macedonia)

Type: FULL_TIME

We power real-time Chat, Video, Activity Feeds, and AI Moderation for apps like Strava, Bumble, eBay, and Patreon - billions of API requests per month, millions of concurrent users. We're looking for a hands-on Lead Engineer (Staff / Principal level) to own Platform Infrastructure. Reports directly to the CTO. Small, senior team - you'll write code most of the time, not run a process org. First 6 months focus on three things with measurable outcomes: * Cloud cost optimization (AWS/GCP) — tooling and guardrails, not reports * Platform reliability and scalability — SLOs, observability, hardening * Architecture decisions on Kubernetes, databases, and cloud provider strategy. Stack: Go, Python, AWS, GCP, Kubernetes, PostgreSQL, CockroachDB, Redis, Terraform. Looking for: software engineering background (Go or Python, not scripting-only), production cloud cost optimization experience, real distributed systems depth, and active AI tooling use in your engineering workflow. Not a fit if: you're security/compliance-heavy, scripting-only, or dependent on large-org support structures.

Company: Castleton Tower

Location: Hybrid (US)

Castleton Tower is a boutique consulting firm founded by executives who have built and led quantitative research, data science, and technology teams at top-tier hedge funds and asset managers. We work with investment management firms (asset allocators, asset managers, hedge funds, family offices, and RIAs) helping them modernize their data infrastructure and build AI-ready foundations. We're looking for smart, motivated, high-agency people with similar backgrounds in either data engineering or investing. We have postings up on job boards, but if you email me a resume and 2 sentences you wrote on why you'd be a good fit, I will guarantee it gets looked at.

Company: Stealth Startup

Location: NYC

Type: FULL_TIME

We’re building a best-in-class multi-modal AI agent product (voice + SMS + email) with the potential to disrupt deeply entrenched software businesses and unify a fragmented industry. We’re a tiny team with real traction pre-product, moving fast, and we care obsessively about craft. This is a founding engineering seat: you’ll be an early builder shaping the product, architecture, and quality bar from day one. Build real-time systems for voice (streaming audio, low latency, turn-taking), SMS, and email automation with robust state + memory. Partner closely with the co-founders on product decisions. Strong product sense, systems thinking, high ownership, and a startup mindset are required. Bonus points include experience with agentic systems, voice/telephony, and modern tech stacks.

Company: Level 12

Location: REMOTE

Type: FULL_TIME

Salary: $95K-145K+

12 is a software consulting and custom development agency. We have mid and senior level positions. Our job descriptions are written by developers for developers. No HR fluff here, we want you to know what you are really getting into. We have a commitment to transparency and offer a no surprises experience throughout the interview and hiring process. We value candor...as evidenced by the length of our job description. Our CEO prefers the title CED, Chief Executive Developer. Engineering and operational concerns don't take a back seat when potential sales come to the front door. You will be working remote with a team that is all working remote and has been for years. Let's make the best use of our time by not commuting. We practice and preach sound development practices. You are likely to learn and grow as a developer while working here. You are committed to automated testing of all the software you write (our apps typically have 92%+ test coverage). We have a no-drama office policy. We value and cultivate enjoyable working relationships among team members. No jerks allowed! We emphasize work/life balance and adopt policies that make sure our people don't get burnt out. For instance, our PTO/Vacation policies are designed so that you actually use them. If you apply, we guarantee that we will give you a response, whether yay or nay. No black holes here!

Company: Aerofex

Location: Remote / Los Angeles

Type: CONTRACT

Aerofex is a rapidly-growing aerospace startup developing next-generation thrust vectoring and VTOL propulsion technology for manned and unmanned platforms. We are seeking an experienced engineer to support the migration of an existing flight-control implementation from a flight-verified Simulink-like development environment into an ArduPilot-based production implementation. This is a 1-2 month contract position, with potential for future full-time work. The primary task is to create a custom ArduPilot airframe configuration for a (slightly) nonstandard vehicle. This work will focus on actuator/output mixing, PWM output expansion, firmware integration, and hardware-level debugging on a Pixhawk-based flight controller. A successful candidate will have worked closely on a similar task and is very familiar with Ardupilot.

Company: Seeq

Location: REMOTE (Some crossover w/ PST required)

Type: FULL_TIME

Salary: $170k + annual cash bonus + 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, home office allowance, generous PTO, a remote office app we created to collaborate) and a dev team that enjoys tackling hard problems that make a difference for our customers (dev blog for more: https://geeq.seeq.com/). Be sure to mention that you came from Hacker News in your application!

Company: Y Combinator

Location: San Francisco

Type: FULL_TIME

Salary: $185K-$485K

I'm Ryan, an EM and engineer here at YC. We have a small, 18-person software team with no PMs -- engineers own everything end-to-end. We build the software behind YC's $6B in investments: tools that help partners evaluate thousands of startups per batch, AI-powered apps that founders use every day, and platforms like Work at a Startup that connect candidates with YC companies. Engineers get unlimited AI tokens -- both for development and to build AI-powered products. What wouldn't you build to help founders + YC with that much firepower? What makes this different from other roles: You'd learn more about startups here than you could possibly imagine. Every batch brings hundreds of founders building things across every industry, and you're right in the middle of it. We attend Demo Day, founder dinners, and work directly with partners and many of the companies. (They make great products!) We pay well, offer carry in the fund (like equity), and provide generous relocation support if you're not in SF yet. Two roles open: Product Engineer -- full-stack, own the product lifecycle. Rails/React stack. Build tools that power how YC invests in and supports startups. It's a wide range, and sometimes it feels like labs-like work, other times it feels like a supersuit to power founders and our Partners like Garry and Jared. Community Builder and Software Engineer -- hybrid role. Run YC's talent-facing programs (meetups, tech talks, career expos) AND build the software that makes them scale. You need to be a great engineer and LOVE to build and support communities.

Company: Oxidian

Location: Remote (EU only)

Type: FULL_TIME

We're doing to government software what challenger banks did to banking. We build critical systems for scientists and researchers, making sure public money is well invested. Our work involves high-performance Python for petabyte-scale Earth Observation and satellite datasets, clean web UIs for complex data, and modern DevOps pipelines to automate scientific workflows. Small team, fast-moving. Trust and autonomy from day one. No bureaucracy, just hard problems and impact. We're hiring mid and senior Python Developers with 3+ years of experience.

Company: Post Up

Location: Vancouver, BC

Type: FULL_TIME

Salary: $120-$130k CAD

We're building the Databricks for content production. Our orchestration engine coordinates pipelines end to end and turns post-production workflows into a persistent graph of assets and transformations, which are deterministic, verifiable, and nearly instant at scale, powered by a high-performance compute layer. We're building this AI-native from the ground up; ML inference is embedded throughout the pipeline, not bolted on. We're looking for our founding senior backend engineer who wants to work on genuinely challenging infrastructure problems across distributed systems and media processing with immense scale. Should be familiar with Golang, Postgres, Distributed systems, Distributed filesystems (e.g. HDFS, Ceph, etc).

Company: HelpMyCash

Location: Remote EU/CET

Type: FREELANCE

Salary: retainer + hourly rate + on-call premium for out-of-hours response

HelpMyCash is a Barcelona-based financial comparison platform. We're looking for a senior freelance DevOps/SRE to act as the operational safety net for a mature AWS production platform. This is explicitly an insurance role: keep the platform reliable, no major evolution or greenfield work. The platform has run reliably for years (no critical outages unrelated to deploys/changes in 5+ years) — we want someone to keep it that way. Engagement: ~4h/week retainer paid on-call for critical incidents planned/larger tasks quoted separately fully remote, EU/CET, reachable during Spanish business hours. Work: monitoring, alert triage, routine maintenance, incident response, certificates/security updates, and infrastructure decision-support. No application development or architecture ownership expected. Stack: AWS Elastic Beanstalk, ECS, Lambda, RDS, ElastiCache, Redshift, S3, SQS, CloudFront, WAF, Route 53, IAM, CloudWatch; MongoDB Atlas, Elastic Cloud, n8n, Metabase, Sentry, Bitbucket Pipelines. Looking for someone senior who can handle incidents independently and is comfortable with a stable-platform maintenance/on-call role.

Company: Elucid

Location: Boston, MA

Type: FULL_TIME

Salary: $170k–$205k

Elucid builds FDA-cleared AI software that analyzes cardiac CT scans to characterize plaque and predict heart attack and stroke risk. The world's best cardiologists use our output to make treatment decisions for real patients. As such, our platform is regulated as a Software as a Medical Device (SaMD) product by the FDA and we operate under HIPAA, ISO 13485, and ISO 27001. We're hiring a Principal Platform Engineer to own our cloud infrastructure and developer platform: AWS, containers, Terraform, CI/CD, observability, and the self-service tooling that lets our application teams ship quickly inside a regulated SDLC. We are looking for: 7+ years in DevOps/SRE/platform roles, deep AWS, strong IaC, comfort with containers (ECS/Fargate, Kubernetes), and one language you reach for when building tooling (Python, Go, Rust, Ruby, C++). Healthcare or regulated-industry experience is a plus, but not a requirement. On-call is a shared rotation, roughly 2–3 weeks per quarter, business-day coverage only (9am–midnight ET, no overnights).

Company: Steel.dev

Location: Toronto, ON

Type: FULL_TIME

Salary: $160k-$240k USD base + equity

Steel is open-source browser infrastructure for AI agents and apps. We make it easy for developers to ship products that interact with the web - without spending 80% of their time on browser pools, proxies, CAPTCHAs, and session state. In 2025 we grew 50x: 6,000+ GitHub stars, dozens of paying customers, millions of sessions served monthly. Dedicated chromium runs on Firecracker VMs for sub-second cold starts. Stack: TypeScript, React/Next.js, Node.js, AWS, Firecracker, Postgres, Redis. 4+ YOE for both roles. --- Applied AI Engineer --- Shape how AI agents interact with the web. Build open-source frameworks/demos on the Sessions API, run experiments on which models/prompts/harnesses actually work, build evals against real scenarios, and work with customers shipping agents to production. AI-native full-stack engineers with strong product sense. --- Infrastructure Engineer --- Design and operate the systems Steel runs on. Sample projects: VM snapshotting that restores full browser state in under a second, performance-tuning the Sessions API from kernel traces, orchestrating millions of sessions with sub-second cold starts. Distributed-systems experience, strong AWS/GCP and Linux/OS fundamentals. Rust is a plus. Public referral bonus: $10,000 if your intro becomes a hire.

Company: BillionToOne

Location: Menlo Park, CA

Type: FULL_TIME

We're a molecular diagnostics company. Our software team creates products that help detect prenatal genetic conditions non-invasively and uncover 50%+ more cancer treatment options. Your code reaches patients and the providers making decisions for them. Stack: Python, React, TypeScript, AWS, Postgres. We believe in small teams with high ownership.

Company: Matterhaul

Location: SF (SoMa)

Type: FULL_TIME

Matterhaul is building an AI-native ERP for the $2T physical goods supply chain. We are replacing 30-year-old legacy systems with a unified data layer and agents that have already cut customer quote times by 40%. We are a tight-knit founding team with meaningful runway (ex-Stripe, Meraki, Verkada, Pinterest) and are hiring for three founding roles: - Founding Infra Engineer: 5+ years experience. Lead our migration to AWS/Aurora. We need someone with reliability battle scars who has built and owned infra from the ground up. - Founding Applied AI Engineer: Senior Eng with production LLM experience OR a hungry, AI-native early-career builder. - Founding Marketer: Strategy-first IC focused on product marketing and events for our relationship-driven customer base.

Company: SalesJack

Location: Toronto, ON, Canada

Type: FULL_TIME

SalesJack is a sales software platform (CRM, Prospecting Service) for independent businesses in the construction supply industry. We are growing quickly and profitably. Our engineering team is growing in Canada. As a Solutions Engineer at SalesJack, you'll own the technical side of bringing new customers live and keeping them successful. Every implementation involves ERP integration, product category mapping, permit source configuration, data migration, and on-site training — and you'll be the person who makes all of that happen. Post-launch, you'll handle customizations: new reports, routing rules, data transformations, and one-off integrations. You'll work closely with founders, engineers, and the dealers using our product every day. We highly value a startup mentality—taking initiative, moving quickly, and iterating solutions based on real customer feedback. We are looking for 2+ years in a Solutions Engineering, Implementation Engineering, Data Engineering, or similarly hands-on technical customer-facing role. Strong SQL — comfortable writing non-trivial queries against Snowflake, Postgres, or similar warehouses. Comfort with REST APIs, auth flows, pagination, rate limits, and debugging flaky endpoints. Familiarity with (or strong interest in) construction supply ERPs such as BisTrack, DMSi Agility, or ECI Spruce. Some travel may be required to customer sites in the US.