World Labs

Platform Engineer (Developer Infrastructure)

World Labs
onsite staff full-time $200-$300k San Francisco
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First indexed 17 Apr 2026

Description

We are seeking a Staff Platform Engineer to own Developer Infrastructure at World Labs. This is a high-impact systems role focused on build systems, testing infrastructure, and release and rollout pipelines. You will define and operate the systems that make our engineering organisation fast, reliable, and scalable, in an environment where both the codebase and workloads are evolving quickly.

Key responsibilities include:

  • Owning the design and evolution of the build, test, and release systems that power the platform.
  • Defining architecture for a Bazel-based monorepo, including performance, caching, and dependency graph scalability.
  • Improving build performance and correctness, including incremental builds, caching strategies, and graph optimisation.
  • Designing and operating test infrastructure, focusing on reliability, isolation, and signal quality.
  • Building and improving release and rollout systems, including deployment pipelines, canarying, and rollback.
  • Improving end-to-end developer velocity, from local iteration to production deployment.
  • Debugging and resolving complex issues across the pipeline, including build failures, dependency issues, test flakiness, and release regressions.
  • Establishing standards for reproducibility, observability, and operability across build and release systems.
  • Identifying and eliminating systemic failure modes across the development lifecycle.

Requirements include:

  • 10 or more years of experience building and operating production systems at scale, with ownership of critical infrastructure.
  • Strong experience with build systems and dependency graphs such as Bazel, Buck, Pants, or similar, or the ability to quickly ramp on Bazel in a large monorepo environment.
  • Experience designing and improving build, test, and release pipelines, with a focus on performance, correctness, and reproducibility.
  • Strong systems understanding of how code moves from source to build to test to production.
  • Hands-on experience debugging complex system issues, including build failures, dependency issues, test flakiness, and release regressions.
  • Experience owning systems with strict reliability and performance requirements.
  • Strong proficiency in at least one of Python, Go, or Rust, and comfort working across languages in a polyglot codebase.
  • Proven ability to define architecture and drive technical decisions end-to-end.
  • Strong judgment in balancing developer velocity, system complexity, and reliability.
  • Ability to operate effectively in ambiguous, fast-moving environments with high ownership.

Preferred qualifications include deep experience with Bazel at scale, including remote caching, remote execution, and build graph optimisation, as well as experience designing hermetic and reproducible build systems.

At World Labs, we're looking for fearless innovators who thrive on challenges and aren't afraid to tackle the impossible. We're resilient builders who can weather the storms of groundbreaking research and come out stronger. We're mission-driven, collaborative, and passionate about creating the best spatially intelligent AI systems, and using them to empower people.

This listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://job-boards.greenhouse.io/worldlabs/jobs/4215994009