About the Company
At Primitive Labs our mission is to make human behavior a first-class primitive of software development.
The Role
As a founding engineer, you own areas of the system from design through production. Your work will span infrastructure, agent architectures, evaluation systems, developer tooling, and the product around them. The goal is to ship agents that reliably model human behavior and act across real experiences. At Primitive Labs everyone is a builder: the whole team pushes code and contributes to research.
Responsibilities
Own design and delivery across the full stack.
Work with our design partners and customers to turn their feedback into new releases.
Contribute to the systems and SDLC that shape how we develop and operate as we scale.
Build new agent architectures, drawing on computational cognitive science.
Qualifications
Shipped full-stack products to production.
Operate with high autonomy: identify what needs to exist and build it.
An agent-native developer who both uses and designs the tools.
Effective at driving AI through the SDLC.
Compensation & Equity
Early-stage compensation: a meaningful equity stake plus salary. Specifics depend on experience and location - we're happy to talk through the details early in the process.