Job Title: Build System & CI Developer
Type: Permanent
Location: Cambridge, United Kingdom
Candidates must be based in UK // Hybrid working required // Nix experience essential
Our client are an AI company based in Cambridge.
We are seeking a Software Developer to support, extend and maintain our CI and Build Systems. You will be working with products at the intersection of high performance application development and machine-learning. You will have the opportunity to develop code and systems for our build systems and CI, including hardware in the loop testing and building code for FPGA platforms. The applications we develop include speech and language processing, recommendation systems, vision processing and financial applications.
You will primarily be contributing to a Nix based build system and Hydra based CI for a polyglot (Rust, Haskell, Python) monorepo.
You will create and improve existing infrastructure for building, testing and shipping code.
This includes refactoring Nix to reduce build times, adding features to Hydra to make it easier to manage, as well as integrating with with impure tests and building releases targeting non-Nix Linux systems.
Responsibilities:
Refactoring Nix code to speed up evaluations and builds
Adding features to Hydra to make it easier to manage and make its reporting easier to understand
Packaging software for release to customers
Making our impure tests more robust using Linux administration tools like Ansible
Key Requirements:
A love of Nix and reproducible builds
Bash, Python and C++ experience
Experience with the build systems and packaging ecosystems of languages such as Rust, Python, Haskell, C
Standard Linux ops such as Docker, Ansible
A willingness to dive into unfamiliar codebases including our own and Nix/Hydra’s
A keen eye for finding flaws and inefficiencies and the ability to find creative solutions to them
Good verbal and written communication skills
If you’re interested, please reach out to for more information.