Location
Stevenage
Job Type
Full-time
Posted
June 05, 2026
Job Description
Senior Test Software Engineer
Based on site in Stevenage
Salary from £45,000 - £75,000 DOE + Bonus + 14% Pension + Paid Overtime
The software you write won’t sit behind a login screen. It will configure, verify and validate complex defence systems. It will be used in development, production and field environments. It has to work. Every time.
You’ll join a multi-disciplined engineering team building high-reliability test solutions that sit between hardware and mission‑critical systems. This isn’t feature development. It’s engineering with consequence.
You’ll be:
- Writing robust software in C, C++ or ADA
- Developing high-performance test applications integrated with real hardware
- Working closely with Systems, Electronics and Test teams
- Solving problems that don’t stop neatly at the edge of “software”
If you enjoy writing clean, documented, dependable code and you like understanding how the whole system...