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Job Title: Senior Engineer – Operability Location: Barrow-In-Furness, Portsmouth, Weymouth, Frimley or Filton – We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role. Salary: Competitive What you’ll be doing: • Reviewing/assessing the developing SSN-AUKUS Submarine design to ensure it is safe, operable, and habitable by its crew. This will be achieved through attendance at design reviews, review of the 3D CAD model, review of design documentation, participation in experimental design and user trials, and provision of design guidance and sharing of SQEP knowledge, • Providing specialist support to safety activities e.g., HAZID, HAZOPS, ALARP Optioneering workshops, • Experienced in the following discipline (Astute preferred): CAT B/C Ships Platform Systems operator/maintainer – Relevant Qualifications to skills required, • Experience and knowledge across any of the following disciplines: Platform systems, Electrical Generation & Distribution and/or Whole Boat Activities, • A general understanding of the manufacturing, assembly, commissioning and testing processes used within the business, • Basic understanding of the challenges posed by the environment that the product will be exposed to, • Knowledge of the capabilities and the most appropriate uses of specialised analysis tools You’ll receive benefits including a competitive pension scheme, enhanced annual leave allowance and a Company contributed Share Incentive Plan. You’ll also have access to additional benefits such as flexible working, an employee assistance programme, Cycle2work and employee discounts – you may also be eligible for an annual incentive. The Operability team: You will work alongside a team of like-minded dedicated ex-submariners utilising whole boat experience from operating the UK SSN & SSBN fleet, including Damage Control and Submarine Escape and Rescue on the current SSN-AUKUS platform design. 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: 5th August 2025 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-AM1 #LI-Hybrid

Job title: Principal Control & Instrumentation Engineer Location: Barrow-in-Furness, Filton or Manchester (2 days minimum on site per fortnight.) 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: • Develop a functional design for the Vehicle Control solution for SSNA, • Work with a complex relationship of stakeholders to provide oversight in the delivery of the vehicle control solution, and the supporting vehicle control strategy, • Work closely with the Office of the Chief Engineer, to support assurance activities., • Work with the engineering manager in the delivery of the vehicle control system, reporting suitable progress through agile toolsets, • Deliver the response to the engineering delivery plan, ensuring that the plan is delivered to schedule, • Provide guidance and instruction on the engineering methods/process to delivery the engineering delivery plan, • Work with the Engineering Delivery Team with varying levels of SQEP to develop technical solutions, developing the team members and nurturing their development Essential • Experience in developing a C&I design for a large scale C&I system ensuring it meets a wide range of requirements, such as functional, defence standards, industrial standards, etc., • Experience with managing non-functional requirements (i.e. EMC, shock, etc.) meeting industrial compliance, • Experience of authoring and/or reviewing design documents, such as I/O schedules, functional design specification, functional chronicle, interface control document, etc., • Understanding of control system architecture and communication protocols (i.e. RS-485, PROFIBUS), • History in IEC 61508 – Functional Safety (or similar) and production of supporting evidence to substantiate safety claims 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 Platform Complex Systems team: You will be helping to define and shape the design of the Royal Navy’s next generation attack class submarine and working to implement legacy technology and new control concepts whilst collaborating with colleagues within the Submarines business, wider stakeholders, suppliers, and the Royal Navy. 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: 7th August 2025 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-AM1 #LI-Hybrid

Job title: Principal Mechanical Engineer Location: Portsmouth Naval Base – 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 £60,000 (dependent on skills and experience) What you’ll be doing: * Lead and conduct early lifecycle engineering activities, including technical investigations, root cause analysis and feasibility studies. Apply engineering theory/technical knowledge to support findings and recommendations * Define equipment/system technical requirements and acceptance routes. Apply and manage requirements to drive the development of design solutions for marine mechanical equipment and systems * Undertake design substantiation via calculation for marine mechanical systems and equipment. This shall include mechanical simulation/analysis in the areas of structures, fluids and heat transfer, incorporating appropriate optimisation and verification/validation (acceptance) routines * Manage technical risk, safety, requirements compliance and design maturity to align with design review gate requirements. Present to engineering design review panels * Produce design/analysis/technical reports, system/equipment specifications, scopes of work and undertake assessment of supplier responses * Liaise with MOD establishments, test facilities, sub-contractors, suppliers and customers as required to satisfy the needs of a project Your skills and experiences: * Be qualified to degree level, or equivalent, in mechanical engineering or similar STEM subject * Ideally professionally registered (CEng) through a relevant professional engineering institution such as the IET, IMechE, IMarEST etc or defined plan to get there. Proactive continuation of professional development * Have experience in application of marine/mechanical engineering in complex industrial/military applications * Competent in assessing mechanical solutions from first principles in support of recognised toolsets * Awareness of project management principles with an ability to consider time, scheduling, cost, and quality factors * Have an awareness of Systems Engineering and the benefits it brings to complex engineering projects * Experienced in applying defence and marine standards, including DefStan, classification society rules, ISO, and relevant regulatory frameworks (MCA, IMO) Benefits: As well as a competitive pension scheme, BAE Systems also offers 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 Warship Technical Authority team: The Warship Technical Authority (WTA) – Principal Mechanical Engineer will deliver professional engineering services to Warship Support in the areas of Naval Marine Mechanical Equipment and Systems The Principal Mechanical Engineer will be required to undertake and routinely lead others in activities across the breadth of the engineering lifecycle to support in-service Naval Marine Platforms. They will be responsible for providing mechanical engineering capability across a broad set of challenges to meet the needs of specific Naval platforms, the WTA team and the customer programme 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: 11th September 2025. 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-TP1 #LI-Hybrid

Job title: Principal Mechanical Engineer Location: Portsmouth Naval Base – 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 £60,000 (dependent on skills and experience) What you’ll be doing: * Lead and conduct early lifecycle engineering activities, including technical investigations, root cause analysis and feasibility studies. Apply engineering theory/technical knowledge to support findings and recommendations * Define equipment/system technical requirements and acceptance routes. Apply and manage requirements to drive the development of design solutions for marine mechanical equipment and systems * Undertake design substantiation via calculation for marine mechanical systems and equipment. This shall include mechanical simulation/analysis in the areas of structures, fluids and heat transfer, incorporating appropriate optimisation and verification/validation (acceptance) routines * Manage technical risk, safety, requirements compliance and design maturity to align with design review gate requirements. Present to engineering design review panels * Produce design/analysis/technical reports, system/equipment specifications, scopes of work and undertake assessment of supplier responses * Liaise with MOD establishments, test facilities, sub-contractors, suppliers and customers as required to satisfy the needs of a project Your skills and experiences: * Be qualified to degree level, or equivalent, in mechanical engineering or similar STEM subject * Ideally professionally registered (CEng) through a relevant professional engineering institution such as the IET, IMechE, IMarEST etc or defined plan to get there. Proactive continuation of professional development * Have experience in application of marine/mechanical engineering in complex industrial/military applications * Competent in assessing mechanical solutions from first principles in support of recognised toolsets * Awareness of project management principles with an ability to consider time, scheduling, cost, and quality factors * Have an awareness of Systems Engineering and the benefits it brings to complex engineering projects * Experienced in applying defence and marine standards, including DefStan, classification society rules, ISO, and relevant regulatory frameworks (MCA, IMO) Benefits: As well as a competitive pension scheme, BAE Systems also offers 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 Warship Technical Authority team: The Warship Technical Authority (WTA) – Principal Mechanical Engineer will deliver professional engineering services to Warship Support in the areas of Naval Marine Mechanical Equipment and Systems The Principal Mechanical Engineer will be required to undertake and routinely lead others in activities across the breadth of the engineering lifecycle to support in-service Naval Marine Platforms. They will be responsible for providing mechanical engineering capability across a broad set of challenges to meet the needs of specific Naval platforms, the WTA team and the customer programme 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: 11th September 2025. 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-TP1 #LI-Hybrid

Job title: Principal Mechanical Engineer – Marine Engineering Location: Portsmouth – Onsite only Salary: Up to 58,500 (dependent on skills and experience) What you’ll be doing: * Providing oversight and assurance on behalf of the MOD customer for Warship Maintenance and upgrades Through-life * Assists in the production of estimates, creates and/or assists in the production of design requirement specifications * Undertake functional design and/or provide qualification and evidence for acceptance, fitness for purpose, legislative requirements, and safety * Develops, promotes and shares new technologies for implementation across businesses and programme(s) * Acts as an engineering, technical or design authority for a sub-system * Provides technical leadership and guidance on matters relating to a discipline, may occasionally lead a team of engineers including line management responsibility Your skills and experiences: * Experienced professional engineer, with sufficient depth and breadth of knowledge and willingness to work towards Chartership * Knowledge, understanding and experience in a wide range of Mechanical engineering activities * sufficient breadth of technical knowledge/experience to make sound engineering decisions in all technical areas and shall seek support from specialist engineers where necessary * Experience in any of the following systems: Auxiliary systems including, HVAC, Fuel Systems, Gas Turbine Services, Fresh Water Services, Sea Water Services, Black and Grey Water Systems, Bilge and Sullage Systems, Gas Systems, Intake and Exhaust Systems, Chilled Water Systems, Lube Oil and Hydraulics * Safety, including being able to provide demonstrable experience of taking responsibility for safety decisions using sound safety management processes/tools Benefits: As well as a competitive pension scheme, BAE Systems also offers 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 Warship Technical Authority team: Under the UK MoD Common Support Model (CSM), complex Warship Design Authority is comprised of the DE&S Warship Approving Authority (WAA) and the BAES Warship Technical Authority (WTA). This exciting role forms part of the T45 WTA and provides governance and oversight of Engineering decisions that primarily affect the T45 platform. In certain situations, this may extend to wider WTA supported platforms as the business requirements develop The primary responsibility of this role is to ensure the design intent and safety of the T45 platform. It also involves collating and presenting assurance evidence to the corresponding WAA. The role operates under the definitive engineering authority of the T45 WTA Class Lead Engineer (CLE), ensuring that all decisions and outputs align with the required standards and governance 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: 3rd September 2025. 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-TP1 #LI-Onsite

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