Senior Software Engineer — Impactful Cyber/Security Tech (Hybrid)

GCHQ is seeking a Senior Software Engineer to play a pivotal role in solving mission‑critical challenges. You will contribute to the architecture and design of both new and existing systems, establish best practices, and deliver high‑quality software solutions in a fast-paced environment.

You will work with JavaScript, Java, Node.js, Python, Rust, and Go across diverse frameworks. Expect responsibilities including code review strategies, deploying scalable solutions, and mentoring others while

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