Senior Software Engineer — Hybrid & Impactful Security Tech

Company: MI5
Apply for the Senior Software Engineer — Hybrid & Impactful Security Tech
Location: Cheltenham
Job Description:

GCHQ is seeking a Senior Software Engineer in Cheltenham/Manchester who will drive architecture and design of mission-critical systems, delivering high-quality software and promoting best practices across teams.

You will work with C++, Golang, Python, Rust and cloud platforms AWS/Azure/GCP, contributing to DevOps, observability and modern engineering practices in a fast-paced environment.

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Posted: September 24th, 2026