Senior Software Engineer — Hybrid, Mission-Critical Security

MI5; Manchester; Hybrid; GBP 50,000 - 60,000; Full time

Benefits offered by this job

25 days leave

Performance scheme

Season ticket loan

Cycle to work

On-site facilities

Job summary

GCHQ, the UK intelligence agency, is seeking a Senior Software Engineer in Cheltenham or Manchester to help design and deliver mission-critical software. You will contribute to architecture, code quality, and DevOps practices, with a focus on scalable, secure systems.

Candidates should have strong skills in C++, Golang, Python, Rust, and cloud platforms (AWS/Azure/GCP), plus experience leading Agile teams and mentoring others. The role offers hybrid working and a competitive salary with benefits.

Qualifications

• Strong experience in designing and delivering software systems.
• Proven ability to lead Agile teams and mentor peers.
• Experience with cloud platforms and modern dev practices.

Responsibilities

• Contribute to architecture and design of new and existing systems.
• Promote best practices and deliver high-quality software solutions.
• Lead and collaborate with cross-functional teams to drive delivery.
• Mentor teammates and shape technical priorities.

Skills

C++

Golang

Python

Rust

CMake

HELM

YAML

JSON

Kubernetes

DevOps

Linux

Observability

Tools

AWS

Azure

GCP

Docker

Job description

GCHQ, the UK intelligence agency, is seeking a Senior Software Engineer in Cheltenham or Manchester to help design and deliver mission-critical software. You will contribute to architecture, code quality, and DevOps practices, with a focus on scalable, secure systems.

Candidates should have strong skills in C++, Golang, Python, Rust, and cloud platforms (AWS/Azure/GCP), plus experience leading Agile teams and mentoring others. The role offers hybrid working and a competitive salary with benefits.