Software Engineer - Bazel / Build Systems job opportunity at Fractile.



Date2025-12-05T09:54:40-05:00 bot
Fractile Software Engineer - Bazel / Build Systems
Experience: 5-years
Pattern: full-time
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loacation London, United Kingdom
loacation London....United Kingdom
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We’re looking for an engineer who wants to own Bazel at scale and build the tooling that powers every part of Fractile, from ML models to kernel drivers to hardware simulation.This is a greenfield Bazel role in a fast-growing deep-tech company building a new class of ML hardware and software from first principles. What you’ll work on:Designing and owning Bazel rules and extensionsScaling our monorepo as we grow across Python, C++, Rust, SystemVerilog and ML workloadsCreating reproducible, multi-language build pipelinesOptimising CI performance across large compute clustersDefining the developer experience for every engineer at FractileContributing upstream to Bazel rules we depend on Why this role is unique? No legacy — you’re building the Bazel ecosystem from scratchExtreme variety — ML, compilers, kernel drivers, simulators, hardware verificationHigh impact — your work becomes the backbone of the entire engineering organisationDeep collaboration with Simulation, Runtime, and Hardware teamsReal ownership — you shape how Fractile builds software What we’re looking for:5+ years in software or infrastructure engineering3+ years with build systemsStrong experience with BazelPython scripting and automationExperience with CI/CD for large-scale products Bonus: ML pipelines, GitHub Actions, multi-language build systems, containers

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