2,917 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Senior Software Engineer
Senior backend engineer at a well-funded Series B startup in New York, building production APIs and third-party integrations with occasional frontend work in a small collaborative team. Preferred stack includes TypeScript, NestJS, React, Postgres, Prisma, AWS, Docker, Vercel; LLM/RAG experience a plus.
Senior Software Engineer
Founding full-stack senior engineer at VectorOne, which builds CFO-office software for complex industries like oil & gas and real estate. You'll pick core technologies, build a backend-for-frontend platform (no microservices), and create design systems, code generation engines, and CI/CD pipelines using Python, React, TypeScript, GCP, and Postgres.
Staff Software Engineer
Staff engineer at a seed-stage FinTech building AI-powered fund administration software, onsite in NYC. Hands-on role owning product features end to end — architecture, backend services, AI agents, and banking/payment integrations — using Python, TypeScript, React, FastAPI, GraphQL, AWS, Kubernetes and Terraform.
Software Engineer
Generalist software engineer at DocDraft, an AI-powered legal platform. Day to day you own reliability, observability, and CI/CD on Vercel, tune Postgres, build vertical AI agents for legal workflows, and ship product features and internal tools, partnering closely with the CTO.
Founding Member of Technical Staff — Markets
Founding engineer at a seed-stage startup building an AI-powered prediction engine for financial and prediction markets in Palo Alto. You'd own trading infrastructure, data pipelines, research tooling, and automated execution systems end-to-end in Python and/or C++, working alongside quant researchers and traders.
Chief Technology Officer
CTO for a venture-backed AI-native payments startup building infrastructure that lets autonomous AI agents discover, negotiate, verify identity, and move money globally. Owns agentic AI architecture, card network/banking API integrations, high-throughput secure payments infrastructure, and scaling an elite engineering team. $250k USD + significant equity.
Senior Software Engineer - Python & Django/Flask
Fully remote senior backend engineer building and scaling Python services with Django/Flask, RESTful APIs, and PostgreSQL/MongoDB for a data analytics and AI startup. Day to day: writing well-tested code, troubleshooting production issues, and contributing to architecture decisions.
Senior Software Engineer (m/f/x) // (B2B Contractor)
Senior engineer at Hakuna, an early-stage embedded-insurance startup, owning projects end-to-end (architecture, design, implementation, operations) in a high-scale web environment. Core stack: TypeScript/JavaScript, React, Node.js, and AWS serverless; 100% remote B2B contractor setup.
Senior Software Engineer (m/f/x)
Senior engineer at Hakuna, an embedded-insurance startup: you own projects end-to-end (architecture, design, implementation, operations) building high-scale web products and shaping the engineering culture. Core stack is JavaScript/TypeScript, React, Node.js, and AWS serverless, working 100% remotely.
Mission Planning Software Engineer
Constellr is hiring a Mission Planning Software Engineer in Munich (hybrid) to build and run the backend services, scheduling algorithms, and infrastructure that automate daily mission planning for its thermal-infrared satellite constellation — working with Python/Java/SQL on AWS, CI/CD, infrastructure-as-code, and translating mission objectives into satellite telecommands.
Payload Flight Software Engineer
Builds, maintains, and operationalizes onboard payload flight software for constellr's thermal Earth-observation satellite constellation, from commissioning through day-to-day in-orbit operations. The hands-on work centers on embedded, high-reliability software, testing/validation, anomaly resolution, and FDIR support using Python, Git/CI-CD, and space protocols like CCSDS.
Senior/Staff Software Engineer (Search & Retrieval)
Design and scale the search, retrieval, and ranking infrastructure that feeds Actively AI's autonomous revenue agents — from entity extraction and enrichment of messy customer data to reranking, hybrid semantic/keyword search, and retrieval quality evaluation in production.
Member of Technical Staff, AI Research
AI research role at Physical Superintelligence (psi), a startup building agents and RL training systems that learn to do physics. Day to day: train RL agents for scientific discovery, design physics-reasoning benchmarks and reward structures, scale distributed training, and publish results alongside physicists and infrastructure engineers in Boston.
Lumia Security- Senior Software Engineer (Endpoint)
Senior engineer on Lumia's AI-security platform (backed by Team8): building the Windows endpoint agent, including kernel drivers and user-mode services in C/C++, plus Go backend microservices, cloud infrastructure, and high-scale distributed debugging from crash dumps to production.
Senior Software Engineer: Computer Vision, Python & Elixir | Remote Seattle | Up to $205K + Equity
Senior engineer at a venture-backed applied AI startup that turns store cameras into live operational data for restaurants, retail and convenience brands. Builds production computer vision (detection, tracking, re-ID) in Python on a real-time Elixir/OTP platform spanning edge devices and cloud across 3,000+ locations.
Founding Software Engineer
Founding software engineer at Hitch, a Brisbane startup blending a consultancy with a software platform for trades and services customers. You'll build full-stack TypeScript apps, AI agents and API integrations, owning delivery end to end while working directly with founders and customers in a hybrid role.
Senior Software Engineer
Senior Software Engineer at a VC-backed robotics startup in Melbourne: own software projects end-to-end for autonomous robot fleets — building fleet-monitoring dashboards, APIs, data pipelines, navigation/planning algorithms, and robot-to-cloud networking, plus internal infrastructure and security. Core stack is Python, Django, Vue.js, and Linux.
