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# Build Engineer

- **Company:** 5v Tech
- **Location:** Greater London, UK (Remote available)
- **Experience:** Expert
- **Contract:** Temporary contract
- **Skills:** Artificial Intelligence, C++ (Programming Language), Compilers, Python (Programming Language), Machine Learning, Software Engineering, SystemVerilog, Rust (Programming Language), Scripting, Build Tools, Legacy Systems
- **Published:** August 26, 2026
- **Apply:** https://www.collegerecruiter.com/job/2815093298-build-engineer

## About the Role

* Extensive experience in Software Engineering or Infrastructure Engineering
 * Proficient in working with build systems
 * Python scripting and automation skills
 * Experience building and maintaining CI/CD pipelines at scale

## Description

Hybrid work model - 3 days in the office, 2 days wfh

6 months contract with possible extensions

5V Tech are working with a fast-growing deep tech company building a completely new class of AI accelerator hardware and software from first principles.

They're now looking for an engineer to take ownership of Bazel at scale and build the tooling infrastructure that powers the entire engineering organisation.

This is a genuinely high-impact role in a greenfield environment, where you'll help shape the build systems, developer workflows, and CI infrastructure from the ground up.

What you'll be working on:

 * Designing and owning Bazel rules and extensions
 * Scaling a large monorepo across Python, C++, Rust, SystemVerilog, and ML workloads
 * Optimising CI performance across large compute clusters
 * Improving the developer experience across engineering teams
 * Contributing upstream to Bazel rules and tooling
 * Working closely with teams across AI/ML, Runtime, Simulation, Compilers, and Hardware

Why this role stands out:

 * Greenfield environment with no legacy systems
 * Huge technical variety across software, ML, infrastructure, and hardware
 * High ownership and visibility across the business
 * Opportunity to define how engineering operates as the company scales
 * Cutting-edge AI and accelerator technology

What they're looking for:

 * Extensive experience in Software Engineering or Infrastructure Engineering
 * Proficient in working with build systems
 * Python scripting and automation skills
 * Experience building and maintaining CI/CD pipelines at scale

Nice to have:

 * Multi-language build environments


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