223 jobs found

Staff Engineer - Backend (Fully Remote) Location: Fully Remote (UK only) Level: Staff / Principal Type: Permanent The Opportunity We're partnering with a well-funded, product-led technology company building advanced backend systems to solve problems that traditional automation has never been able to crack. This is not incremental engineering. You'll be joining a senior, highly capable engineering team that has already shipped a complex production platform and is now scaling it to handle extreme concurrency, massive data volumes, and highly sophisticated workflows . If you enjoy designing systems that need to be fast, resilient, and correct at scale , this is the sort of role that doesn't come around often. What You'll Be Doing Designing and evolving the core backend architecture of a complex, high-throughput platform Solving hard scaling problems across concurrency, performance, and reliability Building systems that process large volumes of unstructured data with strict latency requirements Setting technical direction and raising engineering standards across a senior team Leading architectural decisions that will underpin the platform for years to come Working closely with product and domain experts to translate real-world complexity into elegant technical solutions This is a hands-on architecture role , not a people-management position. What We're Looking For This role is aimed at engineers who have already "been there" technically. Core experience: Extensive backend engineering experience (typically 10+ years) Expert-level Python, with deep understanding of async patterns and performance optimisation Proven experience designing and scaling distributed systems Strong background in API design, data-intensive systems, and service architecture Track record of building platforms that operate reliably under heavy load Nice to have: Experience with TypeScript / Node.js in complex systems Exposure to AI-driven platforms, document processing, or workflow engines Experience in regulated or high-reliability environments Cloud-native architectures and containerised deployments What's On Offer Competitive base salary aligned to Staff-level impact Meaningful equity in a fast-scaling business Flexible PTO Pension contribution Fully remote working setup If you're a Staff-level backend engineer who enjoys solving problems most teams never even attempt, this is one worth exploring. Happy to share more detail on a confidential call.

Principal Software Engineer Portsmouth Hybrid, 3 days onsite 75,000- 85,000 plus bonus and benefits This Principal Software Engineer role is designed for a hands-on technical leader with strong C++ and Unreal Engine expertise, working at the forefront of complex, performance-critical software delivery. The role combines advanced engineering with genuine technical authority, shaping how simulation-driven and autonomy-focused systems are designed, built and evolved. The position sits within a fast-growing software and data science consultancy delivering end-to-end solutions across defence, energy, transport and health. You will work closely with subject matter experts and senior stakeholders on high-impact programmes spanning modelling and simulation, autonomy, geospatial systems, synthetic environments and digital twins. This is a true principal-level role. You will remain deeply technical while setting direction, leading teams and acting as the technical authority across projects. What you will be doing Leading the design and delivery of complex software solutions using C++ and Unreal Engine Acting as technical lead across modelling and simulation, wargaming and autonomous systems Applying mathematical and computational techniques to solve real-world problems Owning key technical decisions across architecture, tooling and performance Mentoring engineers and enabling high-performing delivery teams Delivering technical consultancy engagements and leading selected projects Building trusted relationships with customers and stakeholders Supporting bids, proposals and technical reporting What you will bring Extensive experience, typically 15+ years, delivering high-performance software Proven technical leadership at Principal or Technical Lead level Strong hands-on expertise in C++ and Unreal Engine Background in simulation, autonomy, robotics or game-engine-driven environments Experience working with large, complex codebases and performance constraints Strong stakeholder management, communication and influencing skills What's on offer Salary up to 85,000, flexible for exceptional technical leaders 7 percent employer pension contribution Vitality private healthcare 25 days holiday with the option to buy or sell additional days Life assurance EV salary sacrifice scheme Discretionary bonus linked to company performance Structured mentoring and ongoing technical development

Are you ready to take your career to new heights? This is your opportunity to join a company at the forefront of defence technology, where innovation and excellence are at the heart of everything they do. As a Principal Systems Engineer, you'll be working on groundbreaking projects that redefine the future of defence, contributing to the development of advanced systems that ensure the highest levels of security and trust on a global scale. If you're ready to make a real impact, this role is your chance to shine. The role is to help implement and assure ISO 15288 processes across the full systems engineering life cycle on our projects. Responsible for enabling and assuring a consistent Systems Engineering approach across multi-discipline teams defining stakeholder requirements, supporting delivery of the required products and demonstrating compliance to customer satisfaction. What You Will Do: - Represent the Systems discipline as a senior leader, overseeing complex work packages and ensuring timely delivery. - Collaborate with Engineering Project Leads to meet project obligations within budget and schedule. - Develop and deliver high-quality Systems Engineering artefacts across the product lifecycle. - Provide technical direction and influence across multiple projects, ensuring optimal solutions and designs. - Lead internal and external design reviews, presenting to senior management and customers. - Manage external suppliers and customers, ensuring compliance with agreed processes and objectives. What You Will Bring: - A degree or equivalent qualification in Engineering, Mathematics, Physics, or relevant industry experience. - Proven expertise in Systems Engineering, including ISO/IEEE/IEC standards and the V lifecycle. - Strong technical documentation skills and experience with tools such as DOORS, UML, Enterprise Architect, and SysML. - Demonstrable experience in hardware, software, or firmware development, particularly in embedded environments. - Leadership experience, managing and coaching teams to achieve project goals. As a Principal Systems Engineer, you'll play a pivotal role in shaping the company's innovative solutions, ensuring they meet the stringent requirements of their customers and contribute to global security advancements. The company fosters a collaborative environment where your expertise will drive excellence and inspire others. This is more than a job; it's a chance to be part of something transformative. Location: This role is based onsite in Maidenhead Interested?: Don't miss this exceptional opportunity to make a difference in the defence sector. Apply now to become a Senior Systems Engineer and take the next step in your career journey. Your CV will be forwarded to Jonathan Lee Recruitment, a leading engineering and manufacturing recruitment consultancy established in 1978. The services advertised by Jonathan Lee Recruitment are those of an Employment Agency. In order for your CV to be processed effectively, please ensure your name, email address, phone number and location (post code OR town OR county, as a minimum) are included.

Principal AI Engineer London Excellent Salary +Benefits Join an award-winning, internationally recognised International B2B Consultancy organisation as a Principal AI Engineer , where you will play a pivotal role in shaping and delivering production grade generative AI capabilities. This is a senior; hands-on engineering role focused on building the intelligence layer of advanced AI products. You will design and implement Retrieval-Augmented Generation (RAG) pipelines, agentic workflows, and robust evaluation frameworks that ensure AI systems are accurate and aligned with real-world business needs. Reporting to the Director of AI, you will translate strategy and architecture into high-quality implementations, working closely with AI Platform Engineering to ensure solutions are scalable, maintainable, and production ready. Design, build, and train production-grade generative AI systems. Implement robust RAG pipelines that effectively leverage proprietary and domain-specific content. Develop agentic and workflow-based AI patterns with a focus on determinism, quality, and maintainability. Apply model adaptation techniques prompting, fine-tuning, distillation-to optimise quality, latency, and cost. Establish strong experimentation and evaluation practices to measure correctness, faithfulness, and robustness. Act as a technical authority, providing hands-on leadership, mentoring, and code-level guidance to AI engineers. Collaborate closely with platform, product, and delivery teams to move AI capabilities from experimentation into production. Contribute to advanced retrieval techniques, including Graph-RAG and structured knowledge representation, where they add value. Required Skills & Experience Strong Python proficiency for production-grade AI development, with hands-on experience using LlamaIndex, LangChain, and LangGraph. Proven experience building Retrieval-Augmented Generation (RAG) systems; Graph-RAG experience is a plus. Practical experience with model adaptation techniques, including prompting, fine-tuning, instruction tuning, or knowledge distillation. Solid understanding of evaluation and experimentation for generative AI, focused on correctness, faithfulness, and robustness. Demonstrable experience owning technical design and delivery of complex AI, ML, or data-driven systems in production environments. Experience operating as a senior AI engineer or technical lead, balancing experimentation with production delivery and communicating effectively across teams. This is a progressive career opportunity to work at the cutting edge of Generative AI model deployment, where your work directly shapes customer-facing products and business innovation. You will have real ownership, technical autonomy, and the backing of a world-class leadership team committed to building AI that delivers measurable value. INDAM Portfolio Payroll Ltd is acting as an Employment Agency in relation to this vacancy.

We are currently looking for a Senior/Principal Systems Engineer to lead system definition, architecture, and governance across complex e drive, inverter, motor, battery, and thermal domains. This role acts as a technical authority across the full systems V model, ensuring alignment between hardware, software, controls, and safety teams while shaping the future of advanced EV platforms. The Senior/Principal Systems Engineer will: Define and own system requirements across electrified powertrain programmes, from vehicle level through to subsystems. Lead the development of system architectures covering e drive, traction inverter, motor, battery, and thermal systems. Maintain full traceability of requirements and technical decisions across the systems V Serve as the technical authority for system level trade offs, integration, and performance targets. Coordinate cross functional inputs between hardware, software, controls, and functional safety teams. Lead technical reviews, architecture discussions, and system governance activities. The Senior/Principal Systems Engineer will have: Strong background in systems engineering for electrified powertrain or EV platforms. Proven experience defining, managing, and governing system requirements and architectures. Solid understanding of e drive systems including traction inverters, electric motors, and power electronics. Experience working across hardware, software, controls, and functional safety domains. Strong familiarity with systems engineering processes and V model development. Excellent leadership, communication, and decision making skills, with the ability to influence senior stakeholders. This is a unique opportunity to take a leading role in defining and governing cutting edge electric powertrain systems. For more information, simply click the "Apply now" button and we will be in touch with more details!

Job Title: Principal Engineer - Technical Specialist - HVAC/Auxiliary Location: Scotstoun/Portsmouth/Filton. 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 depending on skills and experience What you'll be doing: Support the Platform TA in requirements, acceptance, architecture and safety of the Auxiliary Systems scope of work Support to the Zonal Review programme leading to final compartment approval Support in the technical management of Auxiliary System Suppliers, including design reviews Co-ordination of Auxiliary Systems Design Reviews Lead on resolution of key Auxiliary System technical issues Identification and implementation of Lessons Learnt from other programmes Technical risk assessment and mitigation Review of key supplier engineering deliverables Support to Platform TA in achieving Certification Your skills and experiences: Ability to manage and support specialist multi-discipline, multi-site teams interfacing with a wide range of providers and customers Knowledge and experience in the design, development, integration and operation of Auxiliary/HVAC Systems equipment in the naval environment Appreciation of wider Warship platform design and principles of operation Understanding of Product Safety and environmental evaluation and legislation Experience of internal/external stakeholder and customer management Knowledge of Lloyds Regulations Engineers at all levels should possess an academic qualification in Engineering or other related STEM subjects as well as specific (either academic or professional) qualifications and become recognised as Incorporated or Chartered Engineers through an appropriate recognised professional institution. Engineers are encouraged, and will be supported, to achieve the relevant accreditation. Preference will be given to candidates who are already professionally registered. 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 Auxiliary Systems team: Maritime Naval Ships are seeking a Principal Engineer, specialising in Auxiliary Systems, support the Technical Authority in their role as Platform TA for the design, development and spatial integration of the Auxiliary sub-systems on the CSC platform. Your role will be to ensure that Auxiliary System engineering meets the Lifecycle Management governance and reporting requirements of the Company and the Authority, and take responsibility for the requirements, acceptance and safety of the Auxiliary Sub-Systems. This role will support the Platform TA to deliver an affordable, capable ship throughout the Design Definition Phase, as well as supporting in Product Safety, Key Hazard certification and Environmental activities. 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: 2nd February 2026 - Interviews will take place w/c 9th 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.

Job Title: Principal Engineer - Technical Specialist - HVAC/Auxiliary Location: Scotstoun/Portsmouth/Filton. 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 depending on skills and experience What you'll be doing: Support the Platform TA in requirements, acceptance, architecture and safety of the Auxiliary Systems scope of work Support to the Zonal Review programme leading to final compartment approval Support in the technical management of Auxiliary System Suppliers, including design reviews Co-ordination of Auxiliary Systems Design Reviews Lead on resolution of key Auxiliary System technical issues Identification and implementation of Lessons Learnt from other programmes Technical risk assessment and mitigation Review of key supplier engineering deliverables Support to Platform TA in achieving Certification Your skills and experiences: Ability to manage and support specialist multi-discipline, multi-site teams interfacing with a wide range of providers and customers Knowledge and experience in the design, development, integration and operation of Auxiliary/HVAC Systems equipment in the naval environment Appreciation of wider Warship platform design and principles of operation Understanding of Product Safety and environmental evaluation and legislation Experience of internal/external stakeholder and customer management Knowledge of Lloyds Regulations Engineers at all levels should possess an academic qualification in Engineering or other related STEM subjects as well as specific (either academic or professional) qualifications and become recognised as Incorporated or Chartered Engineers through an appropriate recognised professional institution. Engineers are encouraged, and will be supported, to achieve the relevant accreditation. Preference will be given to candidates who are already professionally registered. 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 Auxiliary Systems team: Maritime Naval Ships are seeking a Principal Engineer, specialising in Auxiliary Systems, support the Technical Authority in their role as Platform TA for the design, development and spatial integration of the Auxiliary sub-systems on the CSC platform. Your role will be to ensure that Auxiliary System engineering meets the Lifecycle Management governance and reporting requirements of the Company and the Authority, and take responsibility for the requirements, acceptance and safety of the Auxiliary Sub-Systems. This role will support the Platform TA to deliver an affordable, capable ship throughout the Design Definition Phase, as well as supporting in Product Safety, Key Hazard certification and Environmental activities. 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: 2nd February 2026 - Interviews will take place w/c 9th 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.

Job Title: Principal Engineer - Technical Specialist - HVAC/Auxiliary Location: Scotstoun/Portsmouth/Filton. 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 depending on skills and experience What you'll be doing: Support the Platform TA in requirements, acceptance, architecture and safety of the Auxiliary Systems scope of work Support to the Zonal Review programme leading to final compartment approval Support in the technical management of Auxiliary System Suppliers, including design reviews Co-ordination of Auxiliary Systems Design Reviews Lead on resolution of key Auxiliary System technical issues Identification and implementation of Lessons Learnt from other programmes Technical risk assessment and mitigation Review of key supplier engineering deliverables Support to Platform TA in achieving Certification Your skills and experiences: Ability to manage and support specialist multi-discipline, multi-site teams interfacing with a wide range of providers and customers Knowledge and experience in the design, development, integration and operation of Auxiliary/HVAC Systems equipment in the naval environment Appreciation of wider Warship platform design and principles of operation Understanding of Product Safety and environmental evaluation and legislation Experience of internal/external stakeholder and customer management Knowledge of Lloyds Regulations Engineers at all levels should possess an academic qualification in Engineering or other related STEM subjects as well as specific (either academic or professional) qualifications and become recognised as Incorporated or Chartered Engineers through an appropriate recognised professional institution. Engineers are encouraged, and will be supported, to achieve the relevant accreditation. Preference will be given to candidates who are already professionally registered. 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 Auxiliary Systems team: Maritime Naval Ships are seeking a Principal Engineer, specialising in Auxiliary Systems, support the Technical Authority in their role as Platform TA for the design, development and spatial integration of the Auxiliary sub-systems on the CSC platform. Your role will be to ensure that Auxiliary System engineering meets the Lifecycle Management governance and reporting requirements of the Company and the Authority, and take responsibility for the requirements, acceptance and safety of the Auxiliary Sub-Systems. This role will support the Platform TA to deliver an affordable, capable ship throughout the Design Definition Phase, as well as supporting in Product Safety, Key Hazard certification and Environmental activities. 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: 2nd February 2026 - Interviews will take place w/c 9th 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.

Job Title: Principal Engineer - Technical Specialist - HVAC/Auxiliary Location: Scotstoun/Portsmouth/Filton. 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 depending on skills and experience What you'll be doing: Support the Platform TA in requirements, acceptance, architecture and safety of the Auxiliary Systems scope of work Support to the Zonal Review programme leading to final compartment approval Support in the technical management of Auxiliary System Suppliers, including design reviews Co-ordination of Auxiliary Systems Design Reviews Lead on resolution of key Auxiliary System technical issues Identification and implementation of Lessons Learnt from other programmes Technical risk assessment and mitigation Review of key supplier engineering deliverables Support to Platform TA in achieving Certification Your skills and experiences: Ability to manage and support specialist multi-discipline, multi-site teams interfacing with a wide range of providers and customers Knowledge and experience in the design, development, integration and operation of Auxiliary/HVAC Systems equipment in the naval environment Appreciation of wider Warship platform design and principles of operation Understanding of Product Safety and environmental evaluation and legislation Experience of internal/external stakeholder and customer management Knowledge of Lloyds Regulations Engineers at all levels should possess an academic qualification in Engineering or other related STEM subjects as well as specific (either academic or professional) qualifications and become recognised as Incorporated or Chartered Engineers through an appropriate recognised professional institution. Engineers are encouraged, and will be supported, to achieve the relevant accreditation. Preference will be given to candidates who are already professionally registered. 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 Auxiliary Systems team: Maritime Naval Ships are seeking a Principal Engineer, specialising in Auxiliary Systems, support the Technical Authority in their role as Platform TA for the design, development and spatial integration of the Auxiliary sub-systems on the CSC platform. Your role will be to ensure that Auxiliary System engineering meets the Lifecycle Management governance and reporting requirements of the Company and the Authority, and take responsibility for the requirements, acceptance and safety of the Auxiliary Sub-Systems. This role will support the Platform TA to deliver an affordable, capable ship throughout the Design Definition Phase, as well as supporting in Product Safety, Key Hazard certification and Environmental activities. 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: 2nd February 2026 - Interviews will take place w/c 9th 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.

Job Title: Principal Engineer - Technical Specialist - HVAC/Auxiliary Location: Scotstoun/Portsmouth/Filton. 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 depending on skills and experience What you'll be doing: Support the Platform TA in requirements, acceptance, architecture and safety of the Auxiliary Systems scope of work Support to the Zonal Review programme leading to final compartment approval Support in the technical management of Auxiliary System Suppliers, including design reviews Co-ordination of Auxiliary Systems Design Reviews Lead on resolution of key Auxiliary System technical issues Identification and implementation of Lessons Learnt from other programmes Technical risk assessment and mitigation Review of key supplier engineering deliverables Support to Platform TA in achieving Certification Your skills and experiences: Ability to manage and support specialist multi-discipline, multi-site teams interfacing with a wide range of providers and customers Knowledge and experience in the design, development, integration and operation of Auxiliary/HVAC Systems equipment in the naval environment Appreciation of wider Warship platform design and principles of operation Understanding of Product Safety and environmental evaluation and legislation Experience of internal/external stakeholder and customer management Knowledge of Lloyds Regulations Engineers at all levels should possess an academic qualification in Engineering or other related STEM subjects as well as specific (either academic or professional) qualifications and become recognised as Incorporated or Chartered Engineers through an appropriate recognised professional institution. Engineers are encouraged, and will be supported, to achieve the relevant accreditation. Preference will be given to candidates who are already professionally registered. 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 Auxiliary Systems team: Maritime Naval Ships are seeking a Principal Engineer, specialising in Auxiliary Systems, support the Technical Authority in their role as Platform TA for the design, development and spatial integration of the Auxiliary sub-systems on the CSC platform. Your role will be to ensure that Auxiliary System engineering meets the Lifecycle Management governance and reporting requirements of the Company and the Authority, and take responsibility for the requirements, acceptance and safety of the Auxiliary Sub-Systems. This role will support the Platform TA to deliver an affordable, capable ship throughout the Design Definition Phase, as well as supporting in Product Safety, Key Hazard certification and Environmental activities. 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: 2nd February 2026 - Interviews will take place w/c 9th 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.

Job Title: Principal Engineer - Technical Specialist - HVAC/Auxiliary Location: Scotstoun/Portsmouth/Filton. 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 depending on skills and experience What you'll be doing: Support the Platform TA in requirements, acceptance, architecture and safety of the Auxiliary Systems scope of work Support to the Zonal Review programme leading to final compartment approval Support in the technical management of Auxiliary System Suppliers, including design reviews Co-ordination of Auxiliary Systems Design Reviews Lead on resolution of key Auxiliary System technical issues Identification and implementation of Lessons Learnt from other programmes Technical risk assessment and mitigation Review of key supplier engineering deliverables Support to Platform TA in achieving Certification Your skills and experiences: Ability to manage and support specialist multi-discipline, multi-site teams interfacing with a wide range of providers and customers Knowledge and experience in the design, development, integration and operation of Auxiliary/HVAC Systems equipment in the naval environment Appreciation of wider Warship platform design and principles of operation Understanding of Product Safety and environmental evaluation and legislation Experience of internal/external stakeholder and customer management Knowledge of Lloyds Regulations Engineers at all levels should possess an academic qualification in Engineering or other related STEM subjects as well as specific (either academic or professional) qualifications and become recognised as Incorporated or Chartered Engineers through an appropriate recognised professional institution. Engineers are encouraged, and will be supported, to achieve the relevant accreditation. Preference will be given to candidates who are already professionally registered. 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 Auxiliary Systems team: Maritime Naval Ships are seeking a Principal Engineer, specialising in Auxiliary Systems, support the Technical Authority in their role as Platform TA for the design, development and spatial integration of the Auxiliary sub-systems on the CSC platform. Your role will be to ensure that Auxiliary System engineering meets the Lifecycle Management governance and reporting requirements of the Company and the Authority, and take responsibility for the requirements, acceptance and safety of the Auxiliary Sub-Systems. This role will support the Platform TA to deliver an affordable, capable ship throughout the Design Definition Phase, as well as supporting in Product Safety, Key Hazard certification and Environmental activities. 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: 2nd February 2026 - Interviews will take place w/c 9th 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.

Alstom is the UK & Ireland s leading supplier of new trains and train services, and a leading signalling and rail infrastructure provider. Alstom have built, or are building, just under 40% of the UK mainline train fleet; as well as the entire fleets in service with London Underground and Dublin Luas. We provide the widest range of smart solutions in the rail market, from innovative high-speed rolling stock, metros and trams to maintenance, modernisation, infrastructure and signalling. Employing 6000 people, we design and build trains at Derby, the UK s largest train factory; and operate major sites at Widnes, Crewe, Ilford and Plymouth, and 30 train services depots across the UK and Ireland. Could you be the full-time Principal Systems Engineer in Hatfield we re looking for? POSITION OVERVIEW The succesful candidate will participate in the development, adaptation, introduction and systems delivery elements of SSI and SMARTLOCK systems and processes (SML 400, MooN, Smart Gateway, SmartIO, Support System, Test Environment, AutoTesting) for signalling systems in the UK and Ireland.They will also engage in the development and / or improvement of tools and processes within the business including requirements capture, planning, specifications, design, implementation, testing and roll out. Assist in ensuringthat tools and processes remain fit for purpose and enable continuous improvement of them by leading regular reviews and proactively suggesting and implementing improvements. Responsibilities Ensure delivery of standardised objectives and optimum systems solutions on allocated projects. Delivery of project solutions ensuring focus on reliability, maintainability and safety principles. Ensure conformity of projects to systems standards, agreed system architecture, client standards and company procedures. Participate in the development of new systems solutions. Support to safety assurance on the application CSM on allocated projects / products including the development of Generic and Specific Application Safety Cases. Work with the Systems Engineering Manager to establish matters of best practice. Provide systems input to tenders. Participate in systems integration, project deliverables, associated sub-systems and validation of technical documentation in order to verify product and project compliance. Technical team management for Systems Engineers. Support the project in the field by providing second line product support to customers. Attendance at business and technical briefings. Essential Skills: Systems Engineering Management A degree of computer and software literacy. Software development or scripting experience. Ability to liaise with all stakeholders including customers, supplier and project delivery staff Organisational skills Decision Making Technical report writing Qualifications: MSc or BSc level education in an engineering related subject, preferably control systems / electrical engineering / systems engineering or equivalent. Experience: Good knowledge of client and systems standards and legislation. Knowledge of the UK railway safety approval processes. Good knowledge of systems engineering principles and good understanding of relevant systems and software tools and the aptitude to develop skills further. Desirable: Skills Commercial and financial awareness Virtualisation and Cloud Technologies Microsoft Windows System and Domain Administration. Qualifications PTS (Personal Track Safety) Corporate Member of an engineering institute IRSE Systems or Engineering Managers licence (Institute of Railway Signal Engineers) Experience Experience working in a railway systems engineering environment. You don t need to be a train enthusiast to thrive with us. We guarantee that when you step onto one of our trains with your friends or family, you ll be proud. If you re up for the challenge, we d love to hear from you!

Job Title: Principal Engineer - Technical Specialist - HVAC/Auxiliary Location: Scotstoun/Portsmouth/Filton. 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 depending on skills and experience What you'll be doing: Support the Platform TA in requirements, acceptance, architecture and safety of the Auxiliary Systems scope of work Support to the Zonal Review programme leading to final compartment approval Support in the technical management of Auxiliary System Suppliers, including design reviews Co-ordination of Auxiliary Systems Design Reviews Lead on resolution of key Auxiliary System technical issues Identification and implementation of Lessons Learnt from other programmes Technical risk assessment and mitigation Review of key supplier engineering deliverables Support to Platform TA in achieving Certification Your skills and experiences: Ability to manage and support specialist multi-discipline, multi-site teams interfacing with a wide range of providers and customers Knowledge and experience in the design, development, integration and operation of Auxiliary/HVAC Systems equipment in the naval environment Appreciation of wider Warship platform design and principles of operation Understanding of Product Safety and environmental evaluation and legislation Experience of internal/external stakeholder and customer management Knowledge of Lloyds Regulations Engineers at all levels should possess an academic qualification in Engineering or other related STEM subjects as well as specific (either academic or professional) qualifications and become recognised as Incorporated or Chartered Engineers through an appropriate recognised professional institution. Engineers are encouraged, and will be supported, to achieve the relevant accreditation. Preference will be given to candidates who are already professionally registered. 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 Auxiliary Systems team: Maritime Naval Ships are seeking a Principal Engineer, specialising in Auxiliary Systems, support the Technical Authority in their role as Platform TA for the design, development and spatial integration of the Auxiliary sub-systems on the CSC platform. Your role will be to ensure that Auxiliary System engineering meets the Lifecycle Management governance and reporting requirements of the Company and the Authority, and take responsibility for the requirements, acceptance and safety of the Auxiliary Sub-Systems. This role will support the Platform TA to deliver an affordable, capable ship throughout the Design Definition Phase, as well as supporting in Product Safety, Key Hazard certification and Environmental activities. 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: 2nd February 2026 - Interviews will take place w/c 9th 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.

Job Title: Principal Engineer - Technical Specialist - HVAC/Auxiliary Location: Scotstoun/Portsmouth/Filton. 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 depending on skills and experience What you'll be doing: Support the Platform TA in requirements, acceptance, architecture and safety of the Auxiliary Systems scope of work Support to the Zonal Review programme leading to final compartment approval Support in the technical management of Auxiliary System Suppliers, including design reviews Co-ordination of Auxiliary Systems Design Reviews Lead on resolution of key Auxiliary System technical issues Identification and implementation of Lessons Learnt from other programmes Technical risk assessment and mitigation Review of key supplier engineering deliverables Support to Platform TA in achieving Certification Your skills and experiences: Ability to manage and support specialist multi-discipline, multi-site teams interfacing with a wide range of providers and customers Knowledge and experience in the design, development, integration and operation of Auxiliary/HVAC Systems equipment in the naval environment Appreciation of wider Warship platform design and principles of operation Understanding of Product Safety and environmental evaluation and legislation Experience of internal/external stakeholder and customer management Knowledge of Lloyds Regulations Engineers at all levels should possess an academic qualification in Engineering or other related STEM subjects as well as specific (either academic or professional) qualifications and become recognised as Incorporated or Chartered Engineers through an appropriate recognised professional institution. Engineers are encouraged, and will be supported, to achieve the relevant accreditation. Preference will be given to candidates who are already professionally registered. 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 Auxiliary Systems team: Maritime Naval Ships are seeking a Principal Engineer, specialising in Auxiliary Systems, support the Technical Authority in their role as Platform TA for the design, development and spatial integration of the Auxiliary sub-systems on the CSC platform. Your role will be to ensure that Auxiliary System engineering meets the Lifecycle Management governance and reporting requirements of the Company and the Authority, and take responsibility for the requirements, acceptance and safety of the Auxiliary Sub-Systems. This role will support the Platform TA to deliver an affordable, capable ship throughout the Design Definition Phase, as well as supporting in Product Safety, Key Hazard certification and Environmental activities. 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: 2nd February 2026 - Interviews will take place w/c 9th 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.

Job Title: Principal Engineer - Technical Specialist - HVAC/Auxiliary Location: Scotstoun/Portsmouth/Filton. 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 depending on skills and experience What you'll be doing: Support the Platform TA in requirements, acceptance, architecture and safety of the Auxiliary Systems scope of work Support to the Zonal Review programme leading to final compartment approval Support in the technical management of Auxiliary System Suppliers, including design reviews Co-ordination of Auxiliary Systems Design Reviews Lead on resolution of key Auxiliary System technical issues Identification and implementation of Lessons Learnt from other programmes Technical risk assessment and mitigation Review of key supplier engineering deliverables Support to Platform TA in achieving Certification Your skills and experiences: Ability to manage and support specialist multi-discipline, multi-site teams interfacing with a wide range of providers and customers Knowledge and experience in the design, development, integration and operation of Auxiliary/HVAC Systems equipment in the naval environment Appreciation of wider Warship platform design and principles of operation Understanding of Product Safety and environmental evaluation and legislation Experience of internal/external stakeholder and customer management Knowledge of Lloyds Regulations Engineers at all levels should possess an academic qualification in Engineering or other related STEM subjects as well as specific (either academic or professional) qualifications and become recognised as Incorporated or Chartered Engineers through an appropriate recognised professional institution. Engineers are encouraged, and will be supported, to achieve the relevant accreditation. Preference will be given to candidates who are already professionally registered. 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 Auxiliary Systems team: Maritime Naval Ships are seeking a Principal Engineer, specialising in Auxiliary Systems, support the Technical Authority in their role as Platform TA for the design, development and spatial integration of the Auxiliary sub-systems on the CSC platform. Your role will be to ensure that Auxiliary System engineering meets the Lifecycle Management governance and reporting requirements of the Company and the Authority, and take responsibility for the requirements, acceptance and safety of the Auxiliary Sub-Systems. This role will support the Platform TA to deliver an affordable, capable ship throughout the Design Definition Phase, as well as supporting in Product Safety, Key Hazard certification and Environmental activities. 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: 2nd February 2026 - Interviews will take place w/c 9th 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.

Job Title: Principal Engineer - Technical Specialist - HVAC/Auxiliary Location: Scotstoun/Portsmouth/Filton. 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 depending on skills and experience What you'll be doing: Support the Platform TA in requirements, acceptance, architecture and safety of the Auxiliary Systems scope of work Support to the Zonal Review programme leading to final compartment approval Support in the technical management of Auxiliary System Suppliers, including design reviews Co-ordination of Auxiliary Systems Design Reviews Lead on resolution of key Auxiliary System technical issues Identification and implementation of Lessons Learnt from other programmes Technical risk assessment and mitigation Review of key supplier engineering deliverables Support to Platform TA in achieving Certification Your skills and experiences: Ability to manage and support specialist multi-discipline, multi-site teams interfacing with a wide range of providers and customers Knowledge and experience in the design, development, integration and operation of Auxiliary/HVAC Systems equipment in the naval environment Appreciation of wider Warship platform design and principles of operation Understanding of Product Safety and environmental evaluation and legislation Experience of internal/external stakeholder and customer management Knowledge of Lloyds Regulations Engineers at all levels should possess an academic qualification in Engineering or other related STEM subjects as well as specific (either academic or professional) qualifications and become recognised as Incorporated or Chartered Engineers through an appropriate recognised professional institution. Engineers are encouraged, and will be supported, to achieve the relevant accreditation. Preference will be given to candidates who are already professionally registered. 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 Auxiliary Systems team: Maritime Naval Ships are seeking a Principal Engineer, specialising in Auxiliary Systems, support the Technical Authority in their role as Platform TA for the design, development and spatial integration of the Auxiliary sub-systems on the CSC platform. Your role will be to ensure that Auxiliary System engineering meets the Lifecycle Management governance and reporting requirements of the Company and the Authority, and take responsibility for the requirements, acceptance and safety of the Auxiliary Sub-Systems. This role will support the Platform TA to deliver an affordable, capable ship throughout the Design Definition Phase, as well as supporting in Product Safety, Key Hazard certification and Environmental activities. 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: 2nd February 2026 - Interviews will take place w/c 9th 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.

Job Title: Principal Engineer - Electrical Engineering (Power) Location: Barrow-In-Furness (Hybrid). - (Barrow - 2 days a fortnight onsite; 1 day a week onsite at Filton) depending on business needs Salary: Up to £57,500 (Commensurate with skills and experience) What you'll be doing: Develop design solutions to agreed time, cost and quality in accordance with project or business milestones Develop and manage requirements and acceptance criteria specific to a system or product and/or across a system of systems, platform or programme Understand the contractual and performance requirements for various systems, and support the definition and associated acceptance criteria and events through design, build, integration, installation and commissioning activities Produce documentation required to support the design review process, including diagrams; technical specifications; supporting calculations; design evidence and justifications Provide technical support to integrated performance and acceptance activities, including acceptance of equipment from suppliers through to system acceptance by the customer Support the development of estimates for the scope of work and resources required to deliver it to support bids, proposal development and project planning activities for various systems Provide support to the Certificate of Design activities appropriate to the discipline and articulate and present complex technical argument clearly, logically and simply Deliver technical input and engineering solutions in support of build activities, defect resolution and change management Your skills and experiences: BEng (Hons) / MEng or equivalent and CEng (or be able to satisfy requirements for CEng) Demonstrable experience of engineering lifecycle Understanding of at least one of the following areas: Power system modelling; generators; switchgear; protection; power electronics In depth understanding of Power System Architecture, Power Generation and Distribution, Protection and Co-ordination or Power Earth Fault Monitoring Significant knowledge of AC and DC electrical power systems Experience of working within a relevant Engineering role to industry codes and standards 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 Electrical Engineering Power Team: As part of the Electrical Engineering Power Team, you will be leading the development of design documents, reviewing supplier documentation, developing technical requirements and undertaking assessment of design compliance to support the development of our electrical systems. 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: 1st 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.

Job Title: Principal Mechanical Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: Circa £55k What you'll be doing: Design of multiple platform systems, sub-systems and equipment for the next generation Royal Navy submarines Undertake functional design activities, modelling and analysis Produce design documentation, Verification & Validation evidence and safety justifications Support specification qualification and procurement of components, working collaboratively with suppliers Engaging with stakeholders across the cross-functional project team Driving engineering governance through peer reviews and design reviews Your skills and experiences: Essential: Proven capability in system lifecycle delivery - from concept through to commissioning Demonstrated leadership - either through technical direction, mentoring, or project ownership Degree Level Qualification or Chartered engineer or working towards professional accreditation. Mechanical Engineering background in Rotator Machinery, Components or Fluid Dynamics. Desirable: Knowledge of platform-level constraints such as noise, shock, or survivability Previous experience integrating purification systems with submarine life-support, HVAC, and emergency protocols Experience in the design of gas scrubbing, filtration, and environmental control systems (e.g. CO removal, O generation, trace contaminant management , radiological hazards) - ideally in complex , safety-critical environments (e.g. maritime, aerospace, defence, nuclear, oil & gas and sub-sea) 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 Mechanical Engineering team: As a Lead Mechanical Engineer - Air Purification Systems, you will play a pivotal role in the design and development of submarine Air Purification and Atmosphere Monitoring systems. This includes system-level design, technical leadership , supplier engagement, and the opportunity to steer design architecture across a major submarine programme. 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: 4th February 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.

Job Title: Principal Mechanical Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: Circa £55k What you'll be doing: Design of multiple platform systems, sub-systems and equipment for the next generation Royal Navy submarines Undertake functional design activities, modelling and analysis Produce design documentation, Verification & Validation evidence and safety justifications Support specification qualification and procurement of components, working collaboratively with suppliers Engaging with stakeholders across the cross-functional project team Driving engineering governance through peer reviews and design reviews Your skills and experiences: Essential: Proven capability in system lifecycle delivery - from concept through to commissioning Demonstrated leadership - either through technical direction, mentoring, or project ownership Degree Level Qualification or Chartered engineer or working towards professional accreditation. Mechanical Engineering background in Rotator Machinery, Components or Fluid Dynamics. Desirable: Knowledge of platform-level constraints such as noise, shock, or survivability Previous experience integrating purification systems with submarine life-support, HVAC, and emergency protocols Experience in the design of gas scrubbing, filtration, and environmental control systems (e.g. CO removal, O generation, trace contaminant management , radiological hazards) - ideally in complex , safety-critical environments (e.g. maritime, aerospace, defence, nuclear, oil & gas and sub-sea) 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 Mechanical Engineering team: As a Lead Mechanical Engineer - Air Purification Systems, you will play a pivotal role in the design and development of submarine Air Purification and Atmosphere Monitoring systems. This includes system-level design, technical leadership , supplier engagement, and the opportunity to steer design architecture across a major submarine programme. 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: 4th February 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.

Job Title: Principal Mechanical Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: Circa £55k What you'll be doing: Design of multiple platform systems, sub-systems and equipment for the next generation Royal Navy submarines Undertake functional design activities, modelling and analysis Produce design documentation, Verification & Validation evidence and safety justifications Support specification qualification and procurement of components, working collaboratively with suppliers Engaging with stakeholders across the cross-functional project team Driving engineering governance through peer reviews and design reviews Your skills and experiences: Essential: Proven capability in system lifecycle delivery - from concept through to commissioning Demonstrated leadership - either through technical direction, mentoring, or project ownership Degree Level Qualification or Chartered engineer or working towards professional accreditation. Mechanical Engineering background in Rotator Machinery, Components or Fluid Dynamics. Desirable: Knowledge of platform-level constraints such as noise, shock, or survivability Previous experience integrating purification systems with submarine life-support, HVAC, and emergency protocols Experience in the design of gas scrubbing, filtration, and environmental control systems (e.g. CO removal, O generation, trace contaminant management , radiological hazards) - ideally in complex , safety-critical environments (e.g. maritime, aerospace, defence, nuclear, oil & gas and sub-sea) 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 Mechanical Engineering team: As a Lead Mechanical Engineer - Air Purification Systems, you will play a pivotal role in the design and development of submarine Air Purification and Atmosphere Monitoring systems. This includes system-level design, technical leadership , supplier engagement, and the opportunity to steer design architecture across a major submarine programme. 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: 4th February 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.