Senior Software Engineer

ABOUT THE ROLE

Join a well-funded AI and robotics startup tackling some of the hardest open problems in the field. This is a senior individual contributor role for engineers who are obsessed with novel, technically difficult challenges — the kind that don't have existing solutions. You'll work across systems-level infrastructure, real-time AI state management, custom OS development, and UX grounded in human psychology and organisational behaviour.

WHAT YOU'LL DO

• Design and build custom database and memory systems from scratch.
• Implement real-time LLM token state management at large scale.
• Develop custom Unix OS distributions tailored for both humans and AI agents.
• Rethink UX paradigms using insights from organisational behaviour and human psychology.
• Pursue compounding micro-optimisations across the full stack.
• Work onsite 5 days a week in San Francisco.

WHAT WE'RE LOOKING FOR

• Required: Deep obsession with novel, overlooked, or technically unsolved problems.
• Required: Demonstrated ability to build large, complex, and maintainable systems in roughly one-third the time most engineers consider possible.
• Required: Proficiency in one or more of: TypeScript, Rust, Python.
• Required: Experience with graph databases, flexible data pipelines, or ontological modelling.
• Comfort applying psychology and organisational behaviour insights to product and UX decisions.
• Signal of outlier intelligence — top academic background or standout real-world experience (non-traditional backgrounds welcome).

COMPENSATION & BENEFITS

• Cash compensation: $200,000 – $400,000 USD annually
• Variable equity on top of cash
• Visa sponsorship available

LOCATION

On-site in San Francisco, CA (South Park neighbourhood). This is a fully in-person role — remote work is not available.