Member of Technical StaffWere looking for a senior engineer who is hands-on and cares deeply about craft. You will turn ambitious ideas into enduring products and systems while shaping the technical foundation of the company.
What youll do- Build core agent, product, and infrastructure systems.
- Create simulation environments for users, schedules, relationships, and multi-agent interactions.
- Develop evaluations for long-horizon agent behavior, reliability, and safety.
- Design systems for context, memory, orchestration, and tool use.
- Set a high bar for architecture, engineering quality, and product craft.
- Help shape the technical roadmap, culture, and team.
You might be a fit if you- Have designed and shipped complex products or systems with significant ownership.
- Are deeply experienced in backend and distributed systems; our stack includes Python, Postgres, React, Next.js, and TypeScript.
- Have built LLM agents, simulations, evaluation frameworks, or related systems.
- Combine strong architectural judgment with product and design instincts.
- Bring great product instincts and genuine care for design, UX, and human-centered product development.
- Thrive in ambiguity, move quickly, and hold high standards without ego.
This is a high-autonomy high-ownership role with meaningful influence over the product and company.
In person in San Francisco or New York.