AI Platform Engineer, DevX

About this role

Brain Co. seeks an AI Platform Engineer to lead the DevX team, owning the monorepo, build system, CI/CD pipelines, and developer tooling that enable the entire engineering organization to ship faster. You'll identify and eliminate developer friction across a multi-language codebase (Python, TypeScript, Go), design systems for regulated deployments, and treat internal infrastructure with production-grade rigor and observability.

What you'll do

• Own Nx-based monorepo architecture, dependency boundaries, and language toolchains (pnpm, uv, Go)
• Design and operate CI/CD systems with strong guarantees around correctness, reproducibility, and speed for regulated and air-gapped environments
• Build developer tooling including CLIs, scaffolding, local dev stacks (Tilt, Docker, Kubernetes), and code-quality infrastructure
• Measure developer productivity bottlenecks and ship data-driven improvements with clear before/after impact
• Run build and CI infrastructure with SLOs, observability, and on-call rigor like a production system
• Partner with engineering teams to drive adoption of paved paths and internal platforms through quality

What they're looking for

• Monorepo platforms (Nx, Bazel, Pants, Buck, or Turborepo)
• CI/CD systems at scale (GitHub Actions, Buildkite, CircleCI, or similar)
• Go, Python, TypeScript, Rust, or Bash
• Docker and Kubernetes
• Build system optimization and caching strategies
• Developer experience and internal platform design
• Systems observability and SLO management
• Release engineering for regulated environments