Block
Senior Software Engineer, Developer Experience
$185K–$327K
Bay Area, CA, United States of America +1 · Remote · Senior · Full-time · Posted Oct 23, 2026
- Location
- Bay Area, CA, United States of America
US - CA - Bay Area - Remote - Experience
- Typically 7+ years for Senior; 10+ for Staff.
About the job
Improves Block’s largest monorepos by making code changes, builds, tests, and AI-agent engineering workflows safer and more effective.
What you'll do
- Lead framework upgrades, language migrations, dependency updates, and large refactors across codebases.
- Improve developer workflows, build tooling, CI performance, and automated-change safeguards.
- Design agentic workflows and partner with teams to address friction, measure impact, and guide technical direction.
What they ask for
- Significant experience in large, complex codebases.
- Deep experience with application or platform frameworks, including upgrades and long-term evolution.
- Track record leading migrations or large refactors from planning through rollout.
- Understanding of agentic loops and willingness to evolve them; strong communication and ability to build trust.
Nice to have
- Experience with Bazel or comparable build systems, codemods, AST-based tooling, or automated refactoring at scale.
- Background in CI/CD, test infrastructure, developer productivity metrics, LLM-based coding tools, or open-source developer tooling.
Pay
$217,800 — $326,800 USD (base salary); $207,000 — $310,400 USD (base salary); $196,100 — $294,100 USD (base salary); $185,200 — $277,800 USD (base salary)
Tools
Bazel, Buck, Pants, Nx, Gradle
AI focus
Design and evolve agentic loops that let AI agents perform engineering work safely and reliably; build or integrate LLM-based coding tools is a plus.
Model-written summary · the original posting is authoritative