Backend Developer - Bazel

TEKsystems; Greater London; On-site; GBP 83,000 - 124,000; Full time

Job summary

A leading technology solutions provider is seeking a Backend Developer to enhance backend engineering. This role requires expertise in Bazel, developing tools for large monorepo-based codebases, and excellent problem-solving skills. You will help migrate and maintain Bazel, collaborate with infrastructure teams to create a best-in-class monorepo experience, and strive to make developers highly productive. This position is based in Greater London on a contract basis.

Qualifications

• Strong passion for making developers highly productive.
• Experience developing and maintaining tools for large monorepo-based codebases.
• Excellent problem-solving skills.
• Experience working with Bazel build system and its ecosystem.

Responsibilities

• Bring experience of working with Bazel and large monorepos.
• Help migrate to and maintain Bazel to improve developer experience.
• Collaborate with infrastructure teams for a best-in-class monorepo experience.

Skills

Bazel expertise

Java fluency

Python fluency

Starlark proficiency

TypeScript fluency

Problem-solving skills

Tools

Bazel

Job description

Backend Developer – Bazel

Location: London, UK
Job Type: Contract

Our Product Area, Platinum, has historically owned and operated both our VCS and CI systems in addition to the Fleet Management product for helping developers manage large‑scale software changes. Over the past year we have invested significant effort in migrating to monorepos to enable developers to innovate swiftly and efficiently across software components and team boundaries. As part of the Platform Developer Experience (PDX) R&D Studio within the Platform Mission, this role will help shape the future of backend engineering by taking ownership of the nuts and bolts that amplify the developer experience.

What you’ll do

• Bring your experience and knowledge of working with Bazel and scaling monorepos to millions of lines of code to rethink the future of backend engineering.
• Help us migrate to, own, and maintain Bazel and related abstractions built to improve the developer experience.
• Collaborate with adjacent infrastructure teams across the company to develop a best‑in‑class monorepo experience.

Who you are

• Strong passion for making developers highly productive.
• Experience developing and maintaining tools for large monorepo‑based codebases.
• Excellent problem‑solving skills.
• Experience working with the Bazel build system and its ecosystem (e.g., rulesets such as rules_jvm_external, IntelliJ Bazel plugin, etc.).
• Fluency in Java, Python, Starlark, and TypeScript.