Job Title: Principal Systems Engineer – Team Leader Location: Portsmouth Technology Park. Hybrid – 3 times a 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 £70,000 (DOE) Who we are: Join BAE Systems and you’ll be part of something bigger. As a valued member of our global colleague network, you’ll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You’ll 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, there’s no limit to where a career at BAE Systems could take you. Job Description: As a Principal Systems Engineer, you will provide technical leadership to the Systems, Tools and Technology team, overseeing task allocation through Jira and managing the maintenance of deployed hardware, software, and associated tools across the wider estate and projects. A key part of your role will involve understanding customer requirements and emerging technologies, then communicating how these innovations can be incorporated into existing or future products, services, and toolsets. You will champion and apply core Systems Engineering and Software Engineering principles to ensure robust, efficient, and scalable solutions. Core duties: Provide technical management and task allocation using Jira, maintaining the deployed Systems, Hardware and Software deployed across the MISC estate. Understand Customer Requirements and emergent Technologies and communicate how these can be applied to the existing or future Systems, Products, Services and Tools. Apply and champion the Systems Engineering and Software Engineering principles Lead System design, integration, test and deployment activities Essential Skills: Good understanding and applied experience of the Engineering / System lifecycle Minimum qualifications – Higher Education in a STEM related subject Sound understanding of IP networks (protocols, switching & routing) Expert understanding of integration tools, and their application over the integration lifecycle; Good understanding of how synthetic environments support system integration An understanding of Software & Script development experience on Windows and Linux platforms The Maritime Integration and Support Centre (MISC) Systems, Tools and Tech The MISC is support facility for maritime integration, experimentation, demonstration and research for current and future technologies deployed across several Customers. This role will provide hands-on technical leadership and engineering guidance to a team of Engineers and wider stakeholders to develop Systems, Tools and Technologies at the Maritime Integration & Support Centre (MISC) located at Portsdown Technology Park. Why BAE Systems? Here you’ll 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. You’ll be recognised for your contribution and enjoy rewards tailored to what’s 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: We’re 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: 15th April 2026. Interviews for this position will take place W/C 27th April. 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-NS1 LI-Hybrid