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 dont 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

Bachelors 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.