Mid Level C++ Programmer

Salary: £65,000 - 65,000 per year

Requirements:

• 3-8 years of professional experience developing software in C++.
• Strong understanding of modern C++ (C++11/14/17/20), object-oriented design, and core computer science fundamentals.
• Experience with multithreading, real-time systems, or performance-critical applications.
• Solid Linux development experience and familiarity with modern tooling, including Git, CI/CD, and debugging/profiling tools.
• Strong problem-solving skills and the ability to work effectively in cross-functional teams.
• Eligibility to work on defence projects, including the ability to undergo security vetting.

Responsibilities:

• Design, develop, and maintain C++ software for mission-critical defence applications.
• Implement new features, optimise performance, and resolve complex technical issues.
• Contribute to architecture discussions, design reviews, and documentation.
• Work closely with systems engineers, testers, and domain specialists across the development cycle.
• Support integration, verification, and validation activities across hardware, simulation, and embedded environments.
• Apply secure development practices and adhere to defence-sector compliance requirements.
• Mentor junior engineers and help shape engineering best practices.

Technologies:

• CI/CD
• Embedded
• Git
• Hardware
• Support
• Linux
• Security
• C++

More:

We are a major defence technology organisation based in Portsmouth, and we work on cutting-edge projects that support national security and some of the UKs most advanced military platforms. We offer a hybrid working model with 2 days in the office per week, exceptional working conditions, a highly supportive engineering culture, and one of the strongest benefits packages in the sector. This is an opportunity to join a growing engineering division and build long-term stability while developing deep technical expertise on meaningful, high-impact systems.

last updated 31 week of 2026