Senior Software Engineers Ref. 3667

About Us

GCHQ is an intelligence, cyber, and security agency with a mission to keep the UK safe. We use cutting‑edge technology, ingenuity, and partnerships to identify, analyse, and disrupt threats, working with MI5 and MI6 to protect the UK from terrorism, cyber‑attacks, and espionage.

The Role

As a Senior Software Engineer, you will play a pivotal role in solving mission‑critical challenges. You will help design and architect both new and existing systems, promote best practices, and deliver high‑quality software solutions that impact the core mission of keeping the UK safe.

You will review pull requests, define code‑review, branching, and deployment strategies, and work across a variety of software engineering frameworks. You will operate at a deep technical level, applying expertise in languages and frameworks such as JavaScript, Java, Node.js, Python, Rust, Go, and .NET.

Whether leading and mentoring a team or acting as the techni...