Software Engineer - Build Platform

Optiverus·Londonmid

In short

→Diseñar y mejorar sistemas de compilación para C++ a gran escala en Optiver.
→Acelerar el ciclo de desarrollo con herramientas de CI/CD, caché y ejecución remota.
→Ser parte del equipo estratégico que optimiza la productividad de todos los ingenieros.

Strong written and verbal English skills required.

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What they ask for

✓Experiencia sólida en sistemas de compilación de C++
✓Conocimiento práctico de herramientas como Bazel, Buck2, Pants o Gradle
✓Experiencia en migración o operación de sistemas modernos de build
✓Habilidades en CI/CD con GitHub Actions, Buildkite o Jenkins
✓Comprensión profunda de ejecución incremental, caché y grafos de dependencias
✓Capacidad para diagnosticar problemas en ciclos de desarrollo y CI

Don't tick every box? That's normal — your free dossier shows your gaps and how to cover them in the interview.

C++BazelBuck2PantsGradleGitHub ActionsBuildkiteJenkinsDockerRemote Execution

Who should you write to at Optiverus?

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At Optiver, the velocity of our software development is a critical part of our competitive advantage. Our ability to compete depends on how quickly new ideas can move from insight to production. The Developer Experience team is a strategic engineering function with a clear mandate: improve the development lifecycle across the company in ways that accelerate delivery and reduce our time to market. We build the tools, systems, and platforms that shape how software is developed at Optiver. The Build Platform sits at the heart of that lifecycle. Every change an engineer makes flows through it. When builds are fast, correct, and reproducible, engineers stay in flow, receive fast and trustworthy feedback, and shipping changes becomes routine. When builds are slow or unreliable, every team in the company pays the tax, one slow feedback loop at a time. We’re looking for a strong engineer with a passion for improving developer productivity, a deep interest in build systems, and the experience to design and operate platforms at scale. You’ll join a growing global Developer Experience team and help shape the future of how software is built, tested, and delivered at Optiver, enabling both engineers and agents to move from idea to production-ready software with greater speed and confidence. What you’ll do • Shape the future of C++ builds at Optiver by designing and rolling out modern build systems that accelerate build times, improve reliability, and create a more consistent developer experience; • Develop common build libraries, reusable CI/CD pipelines, and container images used across the company; • Build observability into our platform so we can measure performance, reliability and adoption, and use that data to guide further improvements; • Improve build performance at scale through incremental execution, caching, dependency analysis and efficient scheduling; • Design workflows that enable agents to compile, test, diagnose failures, and validate changes reliably with minimal human intervention; • Work closely with engineering teams to understand where existing workflows create friction and turn those problems into scalable solutions; • Help teams adopt new tools and working practices, balancing standardisation with the needs of different codebases and engineering groups; • Stay current with industry trends and emerging tools in the developer experience and build systems space, helping guide our adoption of best-in-class solutions. See the team lead's opinion on why DevEx matters here . Who you are • You are a strong software engineer with deep experience in C++ build systems and developer tooling; • You have hands-on experience designing, adopting, or operating modern build systems such as Bazel, Buck2, Pants, or Gradle, ideally including migration from established tooling; • You have a deep understanding of build system concepts including incremental builds, caching, reproducibility, dependency graphs, remote execution, and artifact management; • You are skilled at diagnosing performance and reliability issues across the local development and continuous integration lifecycle, using data and observability to guide improvements; • You have significant experience with CI/CD platforms such as GitHub Actions, Buildkite, Jenkins, or similar, and understand how to design reliable, scalable pipelines and the infrastructure that supports them; • You hold a deep understanding of the end-to-end lifecycle of software development from ideation to deployment; • You have experience building tools and workflows around source control platforms such as

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