Software Engineer, Developer Experience

Stack

Responsibilities

• ▹Work directly with the engineering team to find and remove friction
• ▹Drive CI runtime down through parallelization, caching, sharding, test selection, and killing flaky tests
• ▹Own the deploy pipeline: progressive rollouts, fast rollbacks, and clear failure signals
• ▹Own the build toolchain — bundlers, compilers, monorepo tooling — keeping builds fast as the codebase grows
• ▹Harden the supply chain: SBOMs, signed artifacts, locked-down GitHub Actions, secret hygiene, and provenance
• ▹Build CLIs, GitHub Apps, and bots that make the right thing the easy thing

Requirements

• ▹5+ years building developer tools, CI/CD, or platform infrastructure
• ▹Track record of taking slow, painful workflows and making them fast and pleasant
• ▹Deep GitHub expertise: Actions, Apps, APIs, merge queues, and branch protections
• ▹Strong fluency with JavaScript/TypeScript build and bundling tools (esbuild, swc, Vite, Turbopack, tsc, pnpm)
• ▹Comfortable profiling and optimizing across the stack — flamegraphs, tracing, measurement
• ▹Supply chain security experience: SBOMs, Sigstore/cosign, SLSA, GitHub Actions hardening
• ▹Strong opinions on safe, reliable production deploys

Soft skills

What we offer

• ▹Medical, dental, and vision insurance
• ▹Daily lunch, snacks, and beverages
• ▹Flexible time off
• ▹Competitive salary and equity
• ▹Wifi & cellphone stipend

About the company

Braintrust is the AI observability platform, connecting evals and observability in one workflow so builders can understand how AI behaves in production and improve it. Teams at Notion, Stripe, and Vercel use Braintrust to compare models, test prompts, and catch regressions.