Build Systems Engineer: Bazel, CI & Dev Efficiency

OpenAI is seeking an engineer to evolve the build and continuous integration systems across a large polyglot monorepo, focusing on Bazel-based builds, Buildkite pipelines, remote caching, and test selection to accelerate engineering velocity while keeping quality high. You will own the reliability of the systems, participate in an on-call rotation for critical developer infrastructure, and collaborate with product, infrastructure, and research teams to remove bottlenecks and apply AI tools to