Cyber Software Engineer - National Security Location: Manchester Clearance Required: Eligibility for DV (Developed Vetting) Clearance (British Citizens only, 10 years UK residency) Protect What Matters Join a trusted and growing supplier in the National Security sector, working at the forefront of technology to develop mission-critical systems that help keep the nation safe, secure, and resilient. This is an opportunity to contribute to innovative programmes involving Cyber Security, AI/Data Science, Cloud, DevOps, and Platform Engineering, all within a secure, impactful environment. With long-term project work secured through major government frameworks, you'll be part of a fast-growing capability with real-world impact. The Role As a Cyber Software Engineer, you'll be part of a highly skilled technical team designing and developing secure software for low-level systems. You'll focus on building resilient, high-assurance code that integrates closely with operating systems and supports the wider cyber mission of national security clients. You'll contribute across the development lifecycle, from architecture and design to testing and integration, all while applying best practices in secure and robust coding. Key Responsibilities Develop secure software in C, C++, or C# Script and automate tasks using Python Work with Linux and/or Windows-based operating systems Integrate software with low-level system components and protocols Contribute to agile development teams using version control and CI/CD pipelines Apply secure coding practices and modern testing patterns Support the mission with technical innovation and hands-on engineering Essential Skills & Experience Strong experience in C, C++, or C# development Familiarity with Python for scripting or automation Exposure to Linux and/or Windows OS internals Understanding of networking and network protocols Comfortable using version control tools such as Git Experience working in agile environments Knowledge of secure software development practices An understanding or interest in the Cyber or National Security domain Why Join? Be part of a mission-driven team working on meaningful, real-world problems Develop cutting-edge solutions using the latest technologies in cyber and software engineering Enjoy long-term project stability with opportunities for career progression and technical growth Contribute to innovation that supports UK national security Location Manchester - Located in one of Europe's fastest-growing tech hubs, the office offers excellent transport links and close proximity to key clients. This role supports the UK Government's levelling-up agenda and contributes to a thriving local tech community. Security & Clearance Due to the sensitive nature of the work, applicants must be eligible for Developed Vetting (DV) clearance. You must be a British Citizen and have resided in the UK for the past 10 years. How to Apply Ready to build software that safeguards national interests? Click apply and submit your up-to-date CV to take the next step in your career. ADZN1_UKTJ