Quest Global are hiring for experienced C++ Senior/Principal Software Engineers on a permanent basis to be based in Luton. This position is for embedded software development in an end to end role focused on electronic warfare systems. As a software engineer, you will work within an integrated project team and be responsible for creating high quality and robust designs and code; for fully documenting and recording your work products; keeping them under configuration management and providing plans and progress reports. Work Experience Languages C++14 or higher versions Tools Visual Studio 2019, VxWorks, IBM DOORS, Azure DevOps, Git Essential Skills and Qualifications Strong programming expertise in C++14, with extensive experience using Visual Studio for development, debugging, and performance optimisation. Proven ability to design, implement, and maintain embedded software on RTOS platforms such as VxWorks, including target integration and validation. Strong grasp of Object-Oriented Design (OOD) principles. Strong unit test skills using tools such as MS Test Framework. Experience in interpreting and managing requirements through IBM DOORS, maintaining full traceability from definition to verification. Proven ability to work closely with other teams (i.e. systems ), translating requirements into technical deliverables and ensuring alignment with project goals. Demonstrates ownership, attention to detail, and the ability to communicate effectively with both client and internal stakeholders to deliver high-quality outcomes. Excellent written and verbal communication skills. Strong peer reviewing skills ( source code and documentation). Desirable Skills and Qualifications Experience delivering software within Agile and DevOps frameworks, actively contributing to sprint meetings. Practical exposure to Continuous Integration (CI) environments and automated build and test pipelines. Working knowledge of Azure DevOps for pipeline creation, build orchestration, and release management. Familiarity with DO-178C standards for safety-critical software development in aerospace and defence domains. Confidence in presenting technical material to a wide range of stakeholders in discussions, technical reviews, and cross-functional collaborations. Qualifications Honours degree or equivalent in Electronics Engineering or another STEM-based subject UK citizenship (Sole UK Nationals only) is mandatory to be able to clear the background checks and obtain SC clearance Current valid SC clearance would be an advantage Security Clearance You must be eligible for full security clearance with Sole British Nationality