Software Engineer I, Build Review & Test

The Role

We’re looking for a Software Engineer to make development at Handshake faster, more reliable, and easier to understand.

Coding agents are a core part of how our engineers work. Both need reliable tools, useful instructions, and clear feedback to produce code we can trust. You’ll build and improve tools that run builds and tests, review changes, and explain failures. Your work will help engineers and agents spend less time waiting or debugging and more time building.

You’ll care as much about how a tool feels to use as whether it works. Is it fast? Are the next steps clear? Does an error message help someone solve the problem? You’ll use developer surveys, conversations with engineers, and system data to guide improvements.

You don’t need a background in developer tools or AI. We’re looking for strong coding skills, curiosity, and a desire to make complex systems easier to use.

What You’ll Do

• Build and maintain tools for builds, tests, code review, and merging changes. Make them useful for both engineers and coding agents.
• Find and fix slow builds, unreliable tests, and confusing errors. Address the cause rather than asking users to work around the problem.
• Make tests faster and more reliable. Split work across machines, reuse previous results when safe, and keep tests from interfering with one another.
• Make failures easier to understand. Help users see what went wrong and what they can do next.
• Improve the tools, instructions, and environments that coding agents use to write, test, and debug code.
• Help build automated code reviews and checks. Reduce repetitive work while keeping clear standards for quality and safety.
• Use developer surveys and direct feedback to find problems worth solving. Work with teammates to release improvements safely, then check whether they made a difference.
• Share what you learn through documentation, code reviews, and working sessions with other engineers.