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Software Engineer, Builder Tools

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COMPANYHadrian
BASE SALARY$165k – $233k

Every engineer at Hadrian ships software. The speed and quality of that work depends directly on the tools, pipelines, and workflows underneath it. The Builder Tools team owns that foundation.

As a Software Engineer on the Builder Tools team, you will build and maintain the CI/CD infrastructure, internal tooling, and AI-assisted development workflows that every engineering team at Hadrian depends on. Your users are Hadrian's engineers, and your job is to make them faster. That means owning shared pipeline libraries, reducing friction in the SDLC, making internal systems accessible to AI coding agents, and automating the work that slows teams down.

This is a high-leverage role. The systems you build touch every engineer at Hadrian, and the improvements you ship show up immediately in how fast the company moves.

WHAT YOU'LL DO

  • Build and maintain CI/CD pipeline libraries that abstract build, release, and deployment events for use across multiple engineering teams
  • Design and build internal tools, APIs, and CLI utilities that reduce developer friction and automate recurring engineering tasks — dependency upgrades, credential rotation, routine maintenance
  • Help make Hadrian's internal systems API-ready for AI coding agents; build harness tooling, context systems, and feedback loops that improve the quality of AI-generated contributions in our codebase
  • Instrument and monitor developer productivity systems; surface bottlenecks and measure the impact of tooling improvements through clear metrics
  • Partner with application development teams to identify needs, implement CI/CD best practices, and drive adoption of new tooling across the org
  • Join the on-call rotation to support systems and services during production incidents; contribute to root cause analyses and postmortems
  • Participate in code reviews and author technical proposals that raise the engineering bar for the Builder Tools team

WHAT WE'RE LOOKING FOR

  • 5–8 years of software engineering experience, with at least 2–3 years focused on CI/CD, developer tooling, or build infrastructure
  • Hands-on experience building and maintaining complex CI/CD pipelines and build infrastructure — pipeline-as-code, artifact management, multi-environment deployments
  • Strong programming fundamentals in Go, Python, TypeScript, or similar; track record of writing clean, maintainable, well-tested code
  • Experience with Docker and container orchestration (Kubernetes or