Founding Fullstack Engineer

The CompanyWe're partnering with a well-funded, venture-backed startup building purpose-built AI platform software to transform a large, legacy-laden industry. This hire will join the core platform team, building tools and driving software adoption across the firm's portfolio of businesses.The RoleYou'll have significant agency over the full product lifecycle, engineering decisions, and internal stakeholder relationships supporting a rapidly scaling platform.You'll be responsible for:Owning the full development lifecycle: discovery, build, ship, debug in production, and live iterationExercising strong product judgment to translate internal stakeholder feedback into clear build decisions without waiting for specsPartnering closely with internal teams (customer success, compliance, ops) to gather requirements, run working sessions, and drive scope independentlySynthesizing lessons and patterns across portfolio companies so wins at one firm scale into the shared platformWorking directly with leadership on both immediate engineering needs and long-term platform strategyNavigating data sensitivity and regulatory constraints (PII, SOC 2, financial compliance frameworks) as a normal part of shippingWhat We're Looking For3–10 years of full-stack product or platform engineering experienceProven track record of owning product decisions and shipping software end-to-end without hand-holdingExperience with full-stack and AI development (modern web frameworks, backend languages, cloud infrastructure, LLMs, RAG, agent frameworks)Exceptional communication poise and fluency to earn trust with internal stakeholders and cross-functional partners, including compliance, ops, and financeHigh-agency, founder-minded mindset comfortable in early-stage, fast-moving environmentsRecognizable early-stage startup experience (Seed–Series C) or top technical background preferredTech stack: Python, FastAPI, TypeScript, React, Node.js, PostgreSQL, AWS, ECS, RDS, ElastiCache, EC2, Docker, Playwright, GitHub Actions, Claude Code, CodexWillingness to be onsite in NY twice a weekWhat's in It for You?Work directly with the co-founders as a key technical hire in a small, elite teamOwn outcomes end-to-end and build purpose-built tools from the ground up rather than maintain legacy specsSignificant influence over product direction, engineering standards, and company cultureJoin a lean engineering team where individual impact is highly visible$160,000–$300,000 base salaryFounding equity and benefits