Senior Software Engineer, Developer Productivity

San Francisco, CA, Remote. Posted 2 months ago

The role

You will own the build-and-test loop for a large TypeScript, React, and Go monorepo. You will modernize JS/TS builds, improve CI performance, and build ephemeral environments for engineers and agents.

What you will do

Lead the move to maintain Bazel tooling and replace workarounds with a cleaner, faster setup
Track build and test performance, improve caching and parallelism, and provide data for build decisions
Own how engineers and agents write, run, and trust tests
Provide local runs that match CI, automatic flake handling, and quality checks
Replace shared, long-lived environments with fast, isolated, reproducible ones

Required qualifications

6+ years owning a build system
Deep understanding of build correctness and performance (hermeticity, sandboxing, caching, and invalidation)
Hands-on experience owning production frontend build pipelines (webpack, Vite, esbuild, or Turbopack)
Hands-on experience owning shared UI packages
Experience owning incremental builds, test sharding, runner fleets, presubmit/postsubmit design, and merge queues
Strong expertise in Node.js module resolution and packaging (CJS/ESM, exports)

Nice to have

Experience with Bazel or a comparable monorepo build tool (Buck2, Pants, Nx, Turborepo)
Experience building agentic workflows within the software development lifecycle (SDLC)
Ownership of test infrastructure such as flake detection and quarantine, ideally including test suites like Jest, Playwright, or Cypress in hermetic builds
Comfort working in a polyglot repo alongside Go

Benefits

Competitive Salary
Competitive Employee Equity
401K Program
Medical, Dental, and Vision Benefits
FSA/HSA Benefit
$175/month Commuter Benefit
Additional Wellbeing Benefits
Flexible Paid Time Off
Paid Parental Leave
Professional Development Stipend
Lunch and dinner daily
Company Sponsored Social Events

About the company

Sprig is the customer survey platform, rebuilt around AI agents. The company is building a platform where AI agents design studies, adapt surveys in real time, and turn responses into actionable insight.