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 Alpha - our rapidly developed humanoid platform now running in real industrial pilots - 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
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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
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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
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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
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Own and maintain the remote build cache infrastructure, ensuring cache correctness, invalidation on environment changes, and read-only promotion from main only
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Own the developer environment story — local builds, dependency management, and the tooling that lets engineers iterate quickly without fighting their environment
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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
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Solid experience with build systems - ideally Bazel, but deep knowledge of CMake or similar is fine; the instincts matter more than the specific tool
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Experience designing and operating CI pipelines at scale: incremental testing, artifact caching, runner management, and keeping feedback loops short
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Strong understanding of hermetic build environments
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Comfort debugging complex build failures across multiple languages and toolchains
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Experience with dependency management and the tradeoffs between reproducibility, speed, and upstream risk
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Good instincts for developer experience
Nice To Have
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Familiarity with ROS/ROS2 build tooling (colcon, ament, CMake)
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Familiarity with Kubernetes: self-hosted runners, ARC
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Experience with GitHub Actions at scale
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Background in robotics or embedded systems where build artifacts span multiple target architectures and deployment environments
What We Offer
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Competitive equity: stock options with meaningful upside as we scale.
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30+ paid days off, including 23 days of annual leave, all UK bank holidays, and additional company closure days (including Christmas–New Year shutdown).
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Private healthcare, including virtual and in-person care.
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Pension scheme with 8% total contribution (5% employee, 3% employer) on full earnings.
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Free daily breakfast, catered lunch, and snacks in-office.
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Work at the frontier - collaborate daily with world-class engineers, researchers, and product experts building the next generation of AI and humanoid robotics.
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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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