Member of Technical Staff, Founding Engineer

a16z-speedrun•San Francisco, CA

About The Position

Primitive Labs is hiring a founding engineer to help build AI systems that model human behavior and act across real experiences. The role owns areas of the system from design through production and spans infrastructure, agent architectures, evaluation systems, developer tooling, and product development. The team contributes both code and research, and works with design partners and customers to turn feedback into releases. The engineer will also help shape the systems and software development lifecycle as the company scales. Primitive Labs aims to make human behavior a first-class primitive of software development and build human-aligned AI systems. The company describes its environment as a small, fast-moving team with significant individual ownership, direct communication, and a willingness to challenge beliefs. Compensation is based on perceived potential and expected achievement rather than years of experience or a checklist of skills.

Requirements

  • Have shipped full-stack products to production.
  • Operate with high autonomy, identifying what needs to exist and building it.
  • Be an agent-native developer who both uses and designs tools.
  • Be effective at driving AI through the software development lifecycle.

Responsibilities

  • Own design and delivery across the full stack.
  • Work with design partners and customers to turn their feedback into new releases.
  • Contribute to the systems and software development lifecycle used to develop and operate the company as it scales.
  • Build new agent architectures, drawing on computational cognitive science.
  • Contribute to code and research as part of the team.

Benefits

  • Medical coverage
  • Dental coverage
  • Vision coverage
  • Paid time off and vacation
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service