Founding Infrastructure Engineer

What you'll work on

As a founding engineer, you help design the engine and set product priorities with the founders.

• Build and improve the incremental engine that keeps context fresh for agents.
• Rethink the infrastructure and interactions that help agents and humans work together.
• Enable agents to share findings, respond to changes, and resume work when needed.
• Work with the founders to shape the product's direction and the company's culture.

What we're looking for

Four core qualities. Infrastructure experience is a bonus.

• Taste for developer tools

  Choose tools that solve developer problems.

  Explain a product decision, the alternatives you considered, and how developer feedback changed your approach.

• Logical thinking

  You reason through complicated systems and stay logically consistent.

  Break a system into parts, trace state changes, and test assumptions. Explain how you verify code, including AI-generated code.

• Ownership

  Take responsibility for a project from design through production.

  You have taken a product from development to production. A project or team has relied on your technical judgment.

• Curiosity

  You want to understand what happens underneath the interface.

  Describe a surprising result you investigated, what you learned, and how it changed the system.

• Infrastructure experience Bonus

  A plus, not a requirement.

  Experience with databases, compilers, runtimes, distributed systems, or developer tools helps. Explain a correctness, performance, concurrency, or recovery tradeoff you handled.

About us

CocoIndex is an open-source incremental engine, with a Rust core and a Python API, that keeps derived data current as its inputs change. We are extending it into the infrastructure that lets agents build on each other's work.

Read what we're building →