Senior Platform Engineer

📋 Description

• Modernize the JavaScript and TypeScript build: Lead the migration from our current Node Bazel rules
• Cut CI time and cost, measurably: Establish p50 and p95 PR build and test times as tracked metrics
• Make the build observable: Ship telemetry for per-target timing, cache hit rate, flake rate, and
• Make test automation a first-class developer experience: Own how engineers and agents write, run
• Move from shared environments to ephemeral ones: Replace a handful of long-lived, contended
• Build the agent-ready development platform: Deliver hermetic, sandboxed, reproducible build and

🎯 Requirements

• Build systems depth: 6+ years owning a monorepo build system at scale (Bazel strongly preferred
• CI/CD as a platform: Experience owning incremental builds, test sharding, self-hosted runner
• Frontend build ownership: Deep experience with production bundler pipelines (webpack, Vite
• TypeScript/Node fluency: Strong expertise in Node.js module resolution and packaging (CJS/ESM
• Build trust: Experience eliminating hidden network calls, machine-dependent toolchains, and
• Test infrastructure and impact: Proven ownership of flake detection/quarantine, balanced sharding

🎁 Benefits

• Competitive Salary
• Competitive Employee Equity
• 401K Program
• Medical, Dental, and Vision Benefits
• FSA/HSA Benefit
• $175/month Commuter Benefit