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Job Title: Principal Systems Engineer Location: Frimley. We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role Salary: Negotiable dependant on experience What you’ll be doing: • Provide oversight and technical ownership of CCS design, leading design decisions and supporting the Engineering Manager in delivering in-service programmes, • Ensure technical leadership by controlling project scope, managing design changes, and engaging stakeholders and suppliers to identify risks early, • Lead programme-level design reviews, coordinate stakeholders, manage design baselines and voids, and produce Certificates of Design while ensuring design governance, • Review and influence technical requirements and architectural design to ensure system integration, covering sub-systems and specialist domains for subcontractor design, development, and qualification Essential: • Extensive experience in network or software engineering, ideally with a background in operations, • Ability to take the lead on technical matters and provide expert guidance, • Chartered Engineer status or working towards, • Specialist expertise in Combat Systems, particularly in relation to submarines, would be advantageous, • Familiarity with DOORS and prior hands-on experience using it 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 team: You will be joining the In-Service Programme team, working on the V Class, where you’ll thrive in a fast-paced environment, delivering high-quality results within tight enterprise timelines. As part of a medium-sized core team of 6-12, you’ll also collaborate with a wider group of around 30, engaging with a broad stakeholder network. This role demands strong technical leadership, owning challenges, proactively solving problems, and working with the right stakeholders to drive solutions forward. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. 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: 24th February 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-SC1 #LI-Hybrid

Job Title: Senior Product Compliance Engineer Location: Barrow-in-Furness, Brough, Filton, Frimley, Portsmouth, Weymouth or Manchester – we offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role. Salary: Negotiable, depending on experience What you’ll be doing: • Attending and reporting to Daily Stand-Up Meetings (DSUM), • Design activities including but not limited to supporting rick reduction/ analysis and identification, • Applying a systems engineering approach to safety products including Working within a centralised modelling tool, • Working within a small safety team environment, • Supporting non-safety experienced member of the wider team to achieve desirable safety outcomes, • Supporting and preparing safety assessments as required to support system design and development, • Supporting the preparation of Design Safety Justification supporting inputs, • Providing Safety SME to product design and gate reviews, • STEM degree (ideally with Product Safety experience within a regulated industry), • Familiarity with UK Defence Standard and publications such as Defence Standard 00-56, Defence Standard 00-55, DSA-01, DSA-02, • Familiarity with safety analysis techniques such as: (FHA) (FTA) (ETA) (FMEA) (STPA) 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 Safety Environmental team: As the Senior Engineer – Product Safety the primary duties for this role will be heavily focussed on the safety during the product design process. You will undertake analysis and provide outputs to the Principal Engineers where they can provide assistance to develop designs further. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. 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: 20th February 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-GV1 #LI-hybrid

Senior Software Engineer - Cyber Location: Onsite, Hampshire. Employment Type: Permanent Salary: Competitive salary commensurate with experience, plus benefits. Security: Candidates must be eligible to obtain DV clearance due to the nature of the work. Our client is seeking a highly skilled Senior/Principal Software Engineer to join a leading organisation specialising in advanced cryptographic and key management solutions that ensure secure information exchange worldwide. This role offers the opportunity to develop innovative security technologies in a dynamic, high-security environment. What You Will Be Doing • Designing, implementing, and testing secure software solutions across various platforms and technologies., • Developing applications for embedded Linux, signal processing, data analytics, and web interfaces., • Writing clean, efficient code in languages such as C/C++ or Rust., • Collaborating with multidisciplinary teams to drive product development from concept to deployment., • Ensuring compliance with security protocols and contributing to documentation throughout the development lifecycle., • Engaging with hardware and FPGA components when required. What You Will Bring • Degree in Engineering, Computer Science, Mathematics, or a related field., • Proven experience in embedded Linux development, kernel or driver programming, or software in secure environments., • Proficiency in C/C++, Rust, Python, or similar programming languages., • Knowledge of object-oriented design, testing methodologies, and best practices., • Active UK Security Clearance at DV level (mandatory).

Apply the principles of Systems Engineering to develop software‑based Simulation Systems across the full engineering lifecycle. Provide hands‑on technical leadership with a team of systems and software engineers, and directly support the product System Design Authority. Demonstrable experience o

Playing a key role in software engineering activities for the development and deployment of new products. Steering new software development through the implementation of best practices. The Common Infrastructure and Integration Services (CIIS) Product Development team:.

Lead Subsea Acoustics Engineer Near Farnborough £Competitive + Bonus + Great Benefits Were seeking an innovative Lead or Principal Engineer to guide the development of next-generation underwater positioning and communication systems. This is a high-impact technical leadership role at the intersection of acoustics, embedded systems, and subsea engineering delivering reliable, secure, and intuitive solutions that support exploration, defence, and offshore energy operations worldwide. As part of the engineering leadership team, youll define technology strategy, coordinate multi-disciplinary teams, and help shape the future of underwater navigation and communication. What Youll Do Lead the design, development, and deployment of advanced underwater acoustic positioning and communication technologies (USBL, LBL, and related systems). Collaborate with hardware, software, and systems engineers to deliver high-performance embedded solutions. Develop and maintain technology roadmaps that align with company and product strategy. Analyse complex acoustic and system data to optimise performance and reliability. Mentor engineers and scientists, fostering technical excellence and innovation. Represent the engineering function at customer reviews, technical forums, and industry conferences. Ensure all products meet the highest standards of robustness, usability, and interoperability. About You Youre a hands-on technical leader who enjoys tackling complex acoustic and systems challenges. You combine deep technical expertise with the ability to inspire, guide, and communicate across diverse teams. Essential Skills & Experience Degree (or higher) in Engineering, Physics, Applied Mathematics, or a related field. 5+ years of experience working with underwater acoustic systems (e.g., USBL, LBL, sonar, or acoustic communications). Strong background and knowledge of embedded systems development (C/C++, Linux RT, DevOps tools). Demonstrated understanding of acoustic navigation principles and signal processing. Proven experience leading or mentoring cross-disciplinary technical teams. Excellent communication and documentation skills able to convey complex ideas clearly and confidently. Nice to have Experience in subsea robotics, oceanography, or defence applications. Proficiency with modelling, simulation, or data analytics for acoustic systems. Familiarity with agile development and continuous integration workflows. Whats on Offer Join a forward-thinking engineering organisation developing technologies that enable safer, smarter, and more connected oceans. Youll work with cutting-edge systems, from early-stage research to real-world trials, in a supportive environment that values technical curiosity and collaboration. We offer: Competitive salary and benefits Opportunities for travel, field trials, and applied research Professional development, mentoring, and career progression This position would suit a Lead or Principal Engineer who has drive, ambition and a desire to lead from the front. Youll be solutions focused and be able to demonstrate what needs to be done in order to achieve the bigger picture. TPBN1_UKTJ