Full Stack Engineer

ABOUT THE ROLE Join a small, senior team at a seed-stage AI infrastructure company building an enterprise context layer that makes AI agents reliable, accurate, and secure for critical business operations. As a Full Stack Engineer, you will own product surfaces end-to-end, from customer-facing interfaces to the APIs and data models underneath. Your work will directly shape how engineers understand and interact with a complex, distributed platform. WHAT YOU'LL DO - Own complete product surfaces end-to-end, covering interfaces, APIs, and data models. - Split your time roughly 60% on frontend and API layer work and 40% on backend services. - Make complex system behavior legible and fast for engineers using the platform. - Define architecture, ship it to production, monitor its behavior, and fix what breaks. - Make product and design calls independently, without handed-down specs or design files. WHAT WE'RE LOOKING FOR - 5 or more years building and shipping full-stack applications in production. - Proficiency with a modern frontend framework such as React or Vue, with an eye for making complex behavior intuitive. - Strong backend fundamentals, with hands-on experience in Python, Go, Node.js, Java, or equivalent. - Experience designing and shipping product surfaces end-to-end without detailed specifications. - Comfort making architectural decisions independently and owning them through production. - Experience with databases and data modeling for systems requiring real-time performance. - A builder-oriented background with a track record of startup-speed execution. - Genuine full-stack capability, comfortable going deep on distributed systems while also touching UI. - Nice to have: experience with knowledge graphs, semantic systems, or graph databases; distributed systems, real-time inference, or agent-based systems; infrastructure or developer-facing products; enterprise data systems or data integration. LOCATION On-site in San Mateo, California, United States. Visa sponsorship is available.