Software Engineer

Description Software Engineer Location: Whiteley (Hybrid / Primarily Home-Based) Security Clearance: Must hold or be eligible for SC clearance At Leidos, we deliver innovative technology solutions through the expertise of our talented people. In the UK, we work across defence, government, safety and security, and transportation, helping customers solve some of their most complex and mission-critical challenges. Everything we do is guided by our Mission, Vision, and Values and a commitment to doing the right thing for our customers, our people, and our communities. We are looking for a Software Engineer to join our Air Traffic Management (ATM) programmes. Based in Whiteley, with primarily home-based working, you’ll be part of a multi-disciplinary engineering team supporting safety-critical, real-time Air Traffic Control systems. You’ll contribute across the full software lifecycle, from requirements and design through to deployment and operational support. The role involves working on multiple applications, so it suits someone who is organised, adaptable, and comfortable working in a structured, regulated environment. What You’ll Be Doing Investigating and resolving software and system issues Developing and maintaining software requirements and designs Designing, building, and implementing software solutions Contributing to architecture and technical design activities Creating and executing software test plans Supporting change, release, and configuration management Producing technical documentation and white papers Working closely with Systems Engineering, Test teams, and project stakeholders Ensuring compliance with software engineering processes and assurance standards Required skills: Proven experience developing software solutions (e.g. Ada, C, C++) Experience working to Waterfall and V-Model development approaches Experience delivering software on Linux operating systems Experience across software development, integration, and test Experience working across the full project lifecycle, from requirements to delivery Strong analytical and problem-solving skills Ability to collaborate effectively within multi-disciplinary teams Clear verbal and written communication skills Strong organisation and time management skills Desirable Skills & Experience Experience delivering real-time and/or safety-critical software Experience with Agile methods (e.g. Scrum) Knowledge of modelling languages (e.g. UML, SysML ) Experience with procedural and object-oriented languages (e.g. C, C++, Java) Experience with scripting languages (e.g. Python ) Familiarity with COTS integration technologies (e.g. Apache Camel, Kafka) Experience using Atlassian tools (e.g. Jira, Confluence) Understanding of configuration management in a software engineering environment What we do for you: At Leidos we are PASSIONATE about customer success, UNITED as a team and INSPIRED to make a difference. We offer meaningful and engaging careers, a collaborative culture, and support for your career goals, all while nurturing a healthy work-life balance. We provide an employment package that attracts, develops and retains only the best in talent. Our reward scheme includes: Contributory Pension Scheme Private Medical Insurance 33 days Annual Leave (including public and privilege holidays) Access to Flexible benefits Flexi Working Commitment to Diversity: We welcome applications from every part of the community and are committed to a truly diverse and inclusive culture. We foster a sense of belonging, welcoming all perspectives and contributions, and providing equal access to opportunities and resources for everyone. If you have a disability or need any reasonable adjustments during the application and selection stages, please let us know, and we will respond in a way that best fits your needs. Who We Are: Leidos UK & EUROPE – we work to make the world safer, healthier, and more efficient through technology, engineering and science. Leidos is a growing company delivering innovative technology and solutions focused on safeguarding critical capabilities and transformation in frontline services, our work in the United Kingdom includes addressing some of the most complex problems in defence, healthcare, government, safety and security, and transportation. Working together as Team Leidos we are helping to transform the UK's defence supply chain by providing an integration of a complex mixture of services, at low risk, using a modern suite of systems that will deliver one version of the truth. For the first time, the MOD will see the whole picture, as it is happening. What Makes Us Different: Purpose: you can use your passion and abilities at Leidos to keep the people you care about safe. We are at the forefront of machine learning, AI, cyber security and solutions. Using your skills in the technology frontline by helping to build a safer world. You can inspire change. Collaboration: having flexibility to do your job is one of our core benefits, enabling