Full-Stack Engineer (Backend-Leaning) | TypeScript | Node.js | Python | PostgreSQL | Must have Startup Exp

Full-Stack Engineer (Backend-Leaning) | TypeScript | Node.js | Python | PostgreSQL | Must have Startup Expeirence Package: $180,000 - $220,000 + meaningful equity Contract: Permanent | Start: ASAP Working model: Onsite, 5 days p/w in San Francisco Eligibility: Must have existing US work authorization Required: Backend-leaning full-stack engineering, TypeScript/Node.js, Python, PostgreSQL, early-stage startup experience (Non-Negotiable) 🚨 Non-Negotiables - Please only apply if you have ALL of the following 🚨 Core technologies: Deep proficiency with JavaScript, Node.js and TypeScriptStrong Python for backend systemsPostgreSQL - performant queries, schema design, complex schema evolutionBuilding and scaling production APIs with modern web frameworks Environment: Proven experience at an early-stage startup (Seed to Series C)Comfortable owning features end-to-end across the full stackThrives in ambiguity, rapid iteration, and high autonomyBuilder/owner mentality - turns undefined requirements into shipped, scalable production features independentlyRelentless focus on user success with an exceptionally high quality bar Key skills: 2+ years full-time engineering experience, with at least 1 year in backend rolesStrong grounding in designing, building, and deploying production-ready systemsExperience with real-time data processing and inference pipelinesComfortable flexing across the full stack to support customersShips fast without dropping the quality barHigh-level written and spoken English, clear communicator in a small, fast-moving team Role Overview We're partnered with a well-funded, AI-native startup building at the frontier of the agentic AI space, backed by a world-class investor and moving at serious pace. This is a rare chance to join at the earliest stage and directly shape core product and infrastructure that will scale with a fast-growing user base. You'll own the backend systems and infrastructure powering the platform - designing scalable APIs, architecting high-performance databases, and building the pipelines and execution environments that make it all run. This is a hands-on, high-ownership role working shoulder-to-shoulder with the founders. Key Responsibilities Own full features end-to-end, from scoping the problem space with the founders through to productionDesign and implement scalable APIs using TypeScript and modern web frameworksArchitect and optimise PostgreSQL databases with performant queries and clean schema evolutionBuild real-time data processing and inference pipelinesDevelop secure, isolated, containerised execution environmentsFlex across the full stack to support and delight customersShip fast and set the engineering standards that scale with the company Nice to Have Founder or founding engineer experienceExperience with ML infrastructure, model serving, and real-time inferenceStrong CS degreeActive GitHub / evidence of shipping production code If you tick all the boxes above and can start ASAP, we'd love to hear from you.