AI Platform Engineer, DevX

Responsibilities

• You'll join the DevX pod - the team that owns the build system, CI/CD, monorepo, and developer tooling that set the ceiling on how fast every other engineer at BrainCo can ship.
• Your job is to discover, measure, and remove developer friction. You should be comfortable going from "this workflow is slow or confusing" to instrumented evidence, a shipped improvement, and clear before / after impact.
• Own the monorepo and build system
• Own the architecture and ongoing health of our Nx-based monorepo: project graph, dependency boundaries, language toolchains (pnpm, uv, Go), and code generation patterns.
• Make builds and tests fast, reliable, and incremental at scale.
• Design and operate CI/CD
• Build CI/CD systems with strong guarantees around correctness, reproducibility, and speed.
• Own pipeline architecture, caching, parallelism, secret flow, and release engineering for environments that include regulated and air-gapped customer deployments.
• Developer tooling and workflows
• Design internal CLIs, scaffolding, local dev stacks (Tilt, Docker, Kubernetes), and code-quality infrastructure (lint, typecheck, format, pre-commit).
• Own the developer-facing experience for deployment and environment workflows, while partnering with Infrastructure on the underlying cloud, Kubernetes, networking, and runtime substrate.
• Create paved paths the team actually wants to use - not guardrails that get bypassed.
• Treat developer tools as production systems
• Run the build, CI, and dev infra with real SLOs, observability, and on-call rigor. Internal downtime is downtime.
• Solve ambiguous productivity problems
• Identify what's slowing engineers down, instrument it, and fix it from first principles.
• Move from "X is slow" to a measured, deployed improvement with clear before/after numbers.
• Operate this like a real product
• End-to-end ownership: architecture, implementation, rollout, observability, on-call, and iteration based on internal user feedback.
• Partner closely with every engineering team. Drive adoption through quality, not mandates.
• You Might Be a Great Fit If You...
• We're looking for engineers who treat developer experience as a product - engineers who reach for users, not just specs.
• Developer Platform & Build Systems
• Have 5+ years building developer-facing infrastructure: monorepo platforms, build systems, CI/CD, or internal tooling.
• Have hands-on depth with at least one modern monorepo tool (Nx, Bazel, Pants, Buck, Turborepo) and the willingness to go deeper.
• Have strong fluency with CI/CD systems at scale (GitHub Actions, Buildkite, CircleCI, or similar): matrix design, caching strategies, secret flow, parallelism.
• Are fluent in at least two of: Go, Python, TypeScript, Rust, Bash.
• Platform & Product Mindset
• Have shipped developer platforms that real engineers adopted.
• Have measured developer friction and shown clear before / after impact from tooling, CI, build, release, or workflow improvements.
• Have strong intuition for developer experience, paved paths, and long-term maintainability.
• Are comfortable owning the full lifecycle: design doc, MVP, hardening, adoption.
• Production & Reliability
• Have owned developer-facing systems with real uptime and operational responsibility.
• Are familiar with observability tooling and incident response.
• Ways You Might Stand Out
• Built or significantly contributed to a remote build cache, custom build system, or hermetic build pipeline (Bazel, Nix, etc.).
• Led

Benefits

Additional Information

About Brain Co. Brain Co. is an applied AI startup co-founded by Jared Kushner and Elad Gil, and backed by leading Silicon Valley builders including Patrick Collison and Andrej Karpathy. We are building AI applications for the world's most important institutions, delivering impact on real-world problems across governments, healthcare systems, and critical industries. Our progress so far: Automated construction permitting for a sovereign government → 80% faster, unlocking $375M+ in value Optimized supply chains for a leading global energy company → 30% lower cost, 99% reliability, preventing $100M+ in losses Streamlined hospital patient care across national health systems → 40% better outcomes, 80% less admin work Company momentum: Raised a $55M Series A from leading investors Built a team of 70+ AI experts from Tesla, Google DeepMind, NVIDIA, and Databricks At Brain Co., we focus on applying frontier AI to real institutional challenges, working alongside governments, healthcare systems, and critical industries to modernize how essential services operate. We are looking for leaders who want to help bring new technology into institutions that impact millions of people.

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