SC Cleared Software Engineer C++
Summary
SC-cleared contract C++ software engineer (initial 3-month contract, inside IR35, £455/day) building software for defence and commercial sensor products; hybrid with 2-3 days a week in the office. Day-to-day work spans Windows/Linux C++ development, firmware and hardware interfacing, test engineering, and microservices.
Salary: £118,300 - 118,300 per year
Requirements:- Experience with C++ or relevant object-oriented software development
- Familiarity with electronics and lower-level firmware
- Experience using and generating documentation to create machine-to-machine interfaces
- Experience with test frameworks and test development
- Familiarity with microservices architecture and containerisation
- Experience developing applications to meet user expectations and formal constraints, including HMI/GUI/UX
- Familiarity with tools and approaches for interfacing with hardware
- Experience developing Windows and Linux applications
- Experience with iterative development lifecycles, such as tailored Agile, and related tools such as Jira, DevOps and Git
- Familiarity with development, design and coding standards
- Good teamwork and communication abilities
- Useful experience includes Python, C# or LabVIEW software development; CUDA integration for AI/ML; industrial protocols; and infrared
- Relevant higher-level formal qualifications in Physics, Computer Science, Software Engineering, ITQSB or a related field are useful
- Develop a new generation of features and capabilities using innovative software solutions
- Collaborate with other software engineers to create Test Engineering solutions
- Contribute to the production of market-leading products for the defence and commercial industries
- Support a range of defence and commercial projects
- AI
- C#
- CUDA
- DevOps
- Firmware
- Git
- Hardware
- Support
- JIRA
- Linux
- Python
- Windows
- microservices
- UX UI Design
- C++
- REST
More:
We are hiring software engineers to support our Integrated Sensors & Protection line of business. This is an initial three-month contract, with a strong likelihood of extension, based in Southampton. The role pays £61 per hour or £455 per day and is inside IR35. Our engineering community values continuous improvement, collaboration and innovation. We offer flexible hours and part-time options, with flexibility agreed around project needs. The role requires regular attendance at our Southampton office, typically two to three days per week; onsite attendance may vary depending on the work and support required, and working from home is also possible.
last updated 43 week of 2026