Fullstack Software Engineer (National Security)

Location : Cheltenham

Salary : £55,000 – £90,000 depending on experience and SFIA grading

Clearance : Active eDV clearance required

The Opportunity

You’ll be joining an engineering‑led organisation working at the heart of UK National Security and Defence. The focus is on building systems that support critical operations, where reliability, performance and security are essential.

This is not a traditional consultancy environment. The organisation operates more like an R&D‑led engineering business, where you’re trusted to solve complex problems rather than deliver against a rigid brief.

Teams are small, multidisciplinary and built on trust. You’ll work closely with software engineers, data specialists and systems engineers, in an environment where collaboration and different perspectives are valued.

There is a strong emphasis on people and culture...