Excellent opportunity for a C++ Developer to join a cutting-edge engineering team working on advanced national security and defence solutions. This environment blends the agility and innovation of a start-up with the stability and backing of a major organisation, enabling engineers to work on highly complex and meaningful projects. The role offers full involvement across the product lifecycle, from early-stage research through to deployment, within fast-paced project timelines. Work spans a wide range of domains including space, underwater systems, and government-led programmes. The team includes specialists from a variety of disciplines, many with research-heavy backgrounds, creating a strong R&D-driven culture. Whats on offer Salary: £55,000 £65,000 Fully onsite working in Gloucester Work on highly innovative, mission-critical projects Broad exposure across multiple technical domains Strong personal development and progression opportunities Collaborative environment with world-class engineers High retention driven by variety and career growth Benefits Pack Plus more What you need Proven experience in C++ development with modern standards Strong Linux development knowledge (kernel, drivers, build tools) Understanding of networking and protocols (TCP/IP, DNS, HTTP etc.) Experience with performance-focused and concurrent systems Familiarity with Agile methodologies and tooling Additional programming or scripting experience (Python, Bash, etc.) Strong problem-solving and system troubleshooting skills Please note that this role is subject to high level security clearances as such candidates must be willing and eligible