Full Stack Engineer

Build AI that survives contact with a real customer. Key Talent Solutions partners with a portfolio of venture-backed AI companies putting agentic products directly into customer workflows. We are looking for engineers who take a vague requirement from a real company, turn it into a system that runs in production, and own it when it breaks. What you'd own AI agents configured and productionized per customer, from a messy first conversation to a live deploymentThe full stack that makes it hold up in someone else's environment: the integrations, the interfaces, the retries, the fixesThe build decisions, working directly with founders and the engineers who own the core productWhat we're looking for 2 to 5 years of software engineering, shipping to productionYou write and debug Python by hand, not by promptingYou have shipped TypeScript and React to real users, not to a demo environmentYou want to be in the room with the customer. Not managing the account, building the thing they need while they watchComfortable running customer conversations and written updates in EnglishStrong bonus signals Forward-deployed engineering at Palantir, Sierra, Decagon or a company in that laneYou have been the first engineer into an account and owned what happened nextAgent frameworks, retrieval, or tool-use orchestration shipped to a paying customerLocation: New York and San Francisco, in person. A few seats sit in other cities or remote, so say where you are. Compensation: $150K to $300K base, plus equity. Exact range depends on the client, city and level. Not a fit: technical support, escalation and production-support engineers; presales, solutions and sales engineers; implementation consultants at enterprise software vendors; IT services and staffing backgrounds; and anyone who confuses a demo with a deployment.