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Open nowPosted 11 days ago

Platform Engineer - Build & CI

humanoid103 open roles

Where
UK, London
Work mode
On site
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Your applicationOpen nowPlatform Engineer - Build & CIhumanoid · UK, London

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  4. 14.6%14 days
  5. 34.1%30 days
This job: posted 11 days ago

The posting

Here at Humanoid, we believe in a future where robots amplify human potential. That’s why we’ve set out on a mission to build the world’s most capable, commercially-scalable, and safe humanoid robots. We’re bringing that mission to life with HMND‑01 - our rapidly developed humanoid platform being deployed in real industrial environments - and we’re growing the team to take it even further.

ABOUT THE ROLE

We are looking for a Software Engineer to own the build system and CI infrastructure that every engineer at Humanoid depends on every day. This is foundational work, because a slow, unreliable, or opaque build pipeline is a tax on the entire engineering organisation, and getting it right directly determines how fast we can ship robots.

We are investing heavily in build infrastructure - hermetic, incremental, fully cached builds across a complex multi-target monorepo spanning firmware, robot software, simulation, and cloud . We need someone to drive that work, own the system it produces and wants to a front-row seat in the world of fleet robotics.

This is a deeply technical infrastructure role. You will work closely with every engineering team in the organisation, and the quality of your work will be felt by every person who opens a PR.

WHAT YOU’LL DO

- Build and maintain CI pipelines in GitHub Actions: incremental test selection based on affected targets, nightly full builds, and clear triage tooling when main goes red

- Instrument the build: CI telemetry, dashboards showing build and test times broken down by job type, branch, and author — so we stop flying blind on build health

- Define and enforce the policies that keep main green: merge queue configuration, PR gating, and the on-call process when broken builds block other engineers

- Own and maintain the remote build cache infrastructure, ensuring cache correctness, invalidation on environment changes, and read-only promotion from main only

- Own the developer environment story — local builds, dependency management, and the tooling that lets engineers iterate quickly without fighting their environment

- Maintain and evolve the dependency mirroring infrastructure (apt, PyPI, and other upstream registries) so that external package availability never blocks a build

WHAT WE’RE LOOKING FOR

- Solid experience with build systems - ideally Bazel, but deep knowledge of CMake or similar is fine; the instincts matter more than the specific tool

- Experience designing and operating CI pipelines at scale: incremental testing, artifact caching, runner management, and keeping feedback loops short

- Strong understanding of hermetic build environments

- Comfort debugging complex build failures across multiple languages and toolchains

- Experience with dependency management and the tradeoffs between reproducibility, speed, and upstream risk

- Good instincts for developer experience

NICE TO HAVE

- Familiarity with ROS/ROS2 build tooling (colcon, ament, CMake)

- Familiarity with Kubernetes: self-hosted runners, ARC

- Experience with GitHub Actions at scale

- Background in robotics or embedded systems where build artifacts span multiple target architectures and deployment environments

WHAT WE OFFER

- Competitive equity: stock options with meaningful upside as we scale.

- 30+ paid days off, including 23 days of annual leave, all UK bank holidays, and additional company closure days (including Christmas–New Year shutdown).

- Private healthcare, including virtual and in-person care.

- Pension scheme with 8% total contribution (5% employee, 3% employer) on full earnings.

- Free daily breakfast, catered lunch, and snacks in-office.

- Work at the frontier - collaborate daily with world-class engineers, researchers, and product experts building the next generation of AI and humanoid robotics.

- Real ownership - direct access to founding leadership, meaningful input on product direction, and the ability to drive key initiatives from day one.

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