Senior Embedded C++ Engineer – Defence & Secure Systems

ALTEN UK is seeking an embedded software engineer to design and maintain real-time C++ software for secure, high‑reliability communication systems. You will work across embedded platforms, ensuring robustness, determinism, and strong traceability in a regulated environment.

The role is based in Crawley with on-site work 4 days a week, requiring senior-level expertise and eligibility for UK SC clearance. A military background and experience with defence projects are advantageous.