Job Title: Senior Systems Engineer Location: Portsdown Technology Park, Portsmouth, Hybrid, 3 days per week on site We offer a range of hybrid and flexible working arrangements please speak to your recruiter about the options for this particular role Salary: Circa £56,000 Who we are: Join BAE Systems and youll be part of something bigger. As a valued member of our global colleague network, youll bring your unique skills and perspectives to help pioneer progress and protect what matters most. Youll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow, shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space, theres no limit to where a career at BAE Systems could take you. What youll be doing: Youll take ownership and accountability for task allocation and provide Engineering support to the Tools and Tech Lead to enable suitable planning. Youll collaborate within the team to undertake System and Tools troubleshooting and maintenance, update software and network configuration as required. Youll support and own the generation and execution of requirements, design, testing and deployment of Systems and Tools Youll manage and support System and Software Bugs and collaborate with subcontractors and partners to conduct system updates and provide technical guidance to end users. Youll support Engineering Lifecycle activities, including technical reviews, verification and approval of engineering technical design and documentation. Core duties: Youll bring good experience and knowledge in application of Network, Virtual Machines, Systems and Software-based products Youll have some experience of supporting Configuration Management Youll demonstrate a good understanding and applied experience of the Engineering / System lifecycle Youll have some understanding of IP networks (protocols, switching & routing) The Tools and Tech Team: This is an opportunity for you to join a collaborative team, working across a range of internal and external stakeholders, from customers to nations, within a dynamic and broad scope of work where no two days are the same. There is a wide range of environments and projects in various stages of work, from early stage de risking and experimentation work to full integration a project team onto an infrastructure (physical or virtual) to conduct real live trials. Why BAE Systems? Here youll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work, this is a place where you can grow your career with confidence and be empowered to be your best. Youll be recognised for your contribution and enjoy rewards tailored to whats most important to you and your family, support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make. A place where everyone can thrive: Were committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks. Closing Date: 30th March 2026 We reserve the right to close this vacancy early if we receive sufficient applications for the role. Therefore, if you are interested, please submit your application as early as possible. LI-AG1 LI-Hybrid