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Job Title: Principal Systems Engineer Location: Isle of Wight - Cowes, Chelmsford - Great Baddow or Portsmouth - BroadOak Salary: Up to £75,900 commensurate with skills and experience. Part time & accruing hours available. Part time & accruing hours available' Please let us know if you would like to discuss these options. Put yourself into a dynamic Principal Systems Engineering role at the forefront of real world demands in the defence industry. Alongside ensuring operational excellence for our existing products, there will be the opportunity to develop next generation radar products to counter emerging threats and contribution to our strategy for new technology. Your new day-to-day will be exciting and diverse by applying the principles of Systems Engineering across the entire engineering development lifecycle as you join in developing radar systems used by those who serve and protect us. What you'll be doing: Developing novel solutions to evolving technical challenges and emerging issues for complex Radar Systems that our customers and end-user communities are facing Applying a breadth of knowledge, skills and experience of Systems Engineering principles, techniques and governance to steer and develop technical solutions and resolve engineering issues Conducting system design analysis to manage trade-offs of system parameters to characterise and specify robust product design Leading the decomposition of requirements to system and sub-system level and manage these in an approved toolset such as IBM DOORS Next Be a technical focus point with a holistic understanding of a whole system solution leading analysis activities and system design decisions and providing guidance to own team Collaborating with specialists across different engineering disciplines including electronics, electrical, mechanical and software to direct and realise overarching system design solutions Directing and undertaking system integration, test planning and execution Defining and articulating system acceptance strategies and acceptance evidence demonstrating system performance across a wide range of operational scenarios to internal and external stakeholders Through these activities you will build your personal profile with senior stakeholders and grow a diverse knowledge base in engineering Your skills and experiences: A good understanding in some of the following subject areas; signal processing, target track extraction, object classification algorithms, system and sensor resource optimisation A good understanding of factors that can affect the real-world performance of sensing systems and how these can impact the accuracy and timeliness of measurements in order to meet challenging design objectives and requirements Demonstrates understanding and experience of Systems Engineering which could include knowledge of Systems Engineering standards (e.g., ISO 15288) Experience of presenting both technical and non-technical information in a formal setting Benefits: As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The Radar Systems Engineering team; You will be working as a Principal Systems Engineer within our close-knit multi-function radar team of inter-disciplinary engineers, evolving our radar portfolio of existing and brand-new radar products to address emerging and future threats. This role is a fantastic opportunity to enhance your skills and invest in your career journey within a global business. You will be supported in growing your knowledge in contemporary and cutting-edge Radar techniques, with opportunities to develop your skills and responsibilities in technical leadership. In this role, you will be able to enjoy both flexible and hybrid working arrangements. Our workplace in Cowes is an easily accessible commute from Southampton with a regular foot passenger ferry and BAE shuttle service from the ferry terminal to site. As the world has evolved, so has the way we work. Our working approach, will enable you to have flexibility with your working hours, depending on your role and location. This could include part time hours, accruing hours as well as flexibility around start and finish times, ensuring you can balance life at work, on site and life at home. Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc.) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. 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: 7th January 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-JP1 #LI-Onsite

Job Title: Principal Systems Engineer - Software/Simulation Location: Portsmouth - Broad Oak - We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Up to £75,900 (dependent on skills and experience) What you'll be doing: Provide hands-on technical leadership with a team of systems and software engineers, and directly support the product System Design Authority Apply the principles of Systems Engineering to develop software-based Simulation Systems across the full engineering lifecycle Undertake Simulation Systems equipment design, network design and software design Lead requirement decomposition and manage specifications using tools like IBM DOORS Next Direct architectural modelling and interface definitions in tools such as CATIA Magic (Cameo) Drive system integration and define acceptance strategies for software-based systems Lead technical reviews and ensure compliance with customer, legislative & business requirements Your skills and experiences: Demonstrable experience of the application of Systems Engineering for software-based products Expertise in Systems Engineering and Software integration lifecycle principles (ISO 15288 and 12207) Strong background in requirements management (e.g., IBM DOORS Next - desirable) Familiarity with engineering lifecycle models (Waterfall & Agile) and tools (e.g. JIRA) Background in software development and integration Technical leadership and ability to guide teams across disciplines to shape design solutions Benefits As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. MIMESIS Product team: You will join our Simulation and Training sector at Broad Oak Works Portsmouth, part of BAE Systems Maritime and Land Defence Solutions, working on our MIMESIS product. MIMESIS provides a battlespace simulation of the maritime world; from terrain and seabed, to weather and underwater acoustics, accurately modelling the movement and behaviour of ships, submarines and other platforms, and digitally replicating their unique capabilities (sonars, radars, weapons). As a System Technical Lead within the MIMESIS team, you will have technical responsibility for the design and development of new modules/content for the product, reviewing and approving lower level documentation. You will also provide technical guidance to the engineering team, working closely with System Design Authority, to develop and support MIMESIS for our customers. This is a unique opportunity to join a growing team of approximately 30 systems and software engineers, working to shape the next generation of maritime simulation through the adoption of new user interface capabilities such as AR/XR and leveraging the capabilities of emerging technologies such as AI. Why BAE Systems? This is a place where you'll be able to make a real difference. You'll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you'll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc.) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments. 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 1st December 2025