On behalf of our client, we are seeking to recruit someone as a C++ Software Engineer for 12 months. As an C++ Software Engineer, you will join them development team responsible for building and integrating real-time test and data capture systems. The role will focus on developing and maintaining software in a Linux environment, working closely with high-speed multi-channel SFPDP cards, real-time data flows, and complex multi-threaded processing pipelines. Role: C++ Software Engineer Pay £67 per hour via Umbrella Contract: Monday- Friday, 37 Hours per week,12-month contract Location: Stevenage IR35 Status: Inside Security Clearance: SC to start, UK Eyes only project Responsibilities Design and develop real-time test and capture software on Linux systems using C++. Integrate and interface with high-speed SFPDP cards across multi-channel data pipelines. Architect and implement robust, scalable, and maintainable multi-threaded applications. Define and implement data sequencing and synchronisation logic to support deterministic capture and replay. Work with hardware teams to ensure seamless integration and timing alignment between software and capture cards. Lead and contribute to system integration, verification, and testing at both component and system levels. Conduct performance analysis, debugging, and optimisation of real-time systems. Document architecture, interface definitions, and test procedures to support handover and formal test activities. Essential Requirements/Skills/Experience Extensive experience in C++ development in a Linux environment. Proficiency in C# for tooling, test interfaces, or Windows components as needed. Proven experience working with real-time data systems, preferably involving SFPDP or other high-speed digital protocols. Demonstrable skills in multi-threaded and concurrent programming. Experience with low-level I/O, DMA, or driver-level interactions with PCIe cards or similar. Familiarity with software sequencing frameworks or custom state machines for test execution. Strong experience with integration, system test, and debugging complex interactions between software and hardware. Strong understanding of software design principles, memory management, and performance optimisation. Experience with version control systems (e.g., Git) and CI/CD pipelines. If you are interested in applying for this position and you meet the requirements, please send your updated CV to: Natalie Dalkin at Line Up Aviation Line Up Aviation has carved its own place in the recruitment of Aviation and Aerospace personnel all over the world for more than 30 years. We work with some of the industry's best known companies who demand the highest standard of applicants. "Follow @LineUpAviation on Twitter for all of our latest vacancies, news and pictures from our busy UK Head Office. Interact with us using the LineUpAviation tag at anytime! Thank you for your follow