Fullstack Software Engineer

FullStack Software Engineer We are looking for a Generalist Software Engineer with experience to join our lean, highly technical team at the frontier of AI. We need a smart, capable engineer with strong first-principles thinking to help us solve novel problems that break traditional engineering best practices. You will be instrumental in building our 'world engine,' a complex, interconnected environment that enables AI models to learn and interact with a simulated digital world, directly impacting the next generation of agentic AI. What will you be doing? Own and build software 'replicas' from the ground up, integrating them into our core 'world engine' to create a vast, interactive environment for AI agents. Develop services that ensure data coherence across the simulated digital world, tackling unique challenges like making a virtual baseball game get canceled during a simulated hurricane. Solve novel, first-principles engineering problems that don't have existing patterns or solutions, breaking conventional best practices to build for the future of AI. Go beyond typical full-stack tasks to reason about and build the fundamental infrastructure needed for our complex simulation environment. Collaborate directly with researchers at leading Frontier AI labs, translating their needs into new capabilities and preempting future research directions. Seniority 2+ years of experience as a software engineer. Work experience Has shipped user-facing features end-to-end (bonus for AI-LLM-powered features). Experience at an AI-forward VC-backed startup or top tech company (e.g., FAANG). Education Bachelor's degree in Computer Science or a related field from a top program (e.g., Berkeley, UIUC, Purdue, MIT, Caltech, etc.). Skills Strong engineering fundamentals (ideally TypeScript, React, and Python). Miscellaneous Active side projects, especially in AI or agentic systems. #J-18808-Ljbffr