Software Engineer

Halcyon Research is hiring a Software Engineer to join our Mountain View team.

About Halcyon Research

Halcyon Research is an established technology and biotech company with 22 locations across Silicon Valley. Founded in 1994, we have decades of experience scaling operations while keeping local hiring strong.

About the role

You'll design, build, and ship features across our product: writing clean, tested code, reviewing teammates' pull requests, and debugging issues in production. You'll work with product and design to break down requirements into technical tasks, weigh trade-offs out loud, and estimate honestly. You'll also carry your share of maintenance work: improving performance, paying down technical debt, and keeping the deployment pipeline healthy so the team can ship confidently.

What you will bring

You bring solid fundamentals in data structures, APIs, and at least one modern language, plus the habit of writing code others can read. You ask questions early, take feedback well, and care about whether the feature actually solves the user's problem, not just whether it compiles.

If this sounds like the right fit, apply through this listing. Final-round interviews are typically on-site.