390 jobs found

We are supporting a high technology organisation operating in the space and defence sector, seeking a Head of Electronic Systems to lead the technical direction and delivery of mission critical electronic systems. This is a senior engineering leadership role responsible for governing and coordinating multi disciplinary electronic engineering teams across analogue, digital, mixed signal and power domains. The role combines systems level technical authority with people leadership, ensuring electronic subsystems meet stringent performance, reliability, compliance and manufacturability requirements. Reporting into the Head of Engineering, the position plays a key role in delivering integrated electronic solutions across complex RF and communications platforms used in highly regulated environments. You must be able to obtain Security Clearance (SC) for this opportunity Responsibilities Lead and govern electronic systems across space and defence programmes. Provide technical authority across analogue, digital, mixed signal and power electronics. Set engineering standards, assurance practices and design governance frameworks. Own electronic subsystem delivery from concept through qualification and release to manufacture. Coordinate system integration across electronics, RF, FPGA, firmware and mechanical engineering teams. Manage technical risk, interface definition and subsystem performance trade offs. Oversee verification, validation, reliability and compliance activities. Lead obsolescence, lifecycle and technology planning for electronic systems. Mentor senior engineers and develop capability across the electronics function. Contribute to long term electronics and system technology roadmaps. Qualifications Degree in Electronic Engineering or equivalent experience. Proven experience leading multi disciplinary electronics teams in space, defence or other mission critical sectors. Strong systems level background across digital, analogue and mixed signal electronics. Experience operating within regulated environments requiring formal design assurance and qualification. Credibility to act as technical authority with customers, suppliers and internal stakeholders. Experience with space or defence qualification programmes. Knowledge of RF system integration and the electronics to RF boundary. Exposure to software defined or mixed digital RF architectures. Involvement in platform or long lifecycle product development. Newcastle upon Tyne + hybrid Permanent Up to £44,000 DOE Teesside + hybrid working options Permanent £45,000-£50,000 DOE UK remote + travel Permanent Up to £DOE + bonus Richmond, North Yorkshire Permanent Up to £50,000 DOE

Job Title: Principal Mechanical Design Engineer Location: Barrow-In-Furness, hybrid We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: Circa £55,000 depending on experience Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering advanced, technology-led defence, aerospace and security solutions, shaping a safer future for all of us. From the depths of the ocean to the far reaches of space, there's no limit to where a career at BAE Systems could take you. What you will be doing: In this role, you will lead the design and development of complex mechanical fluid systems that support critical submarine platform functions. You will define system requirements, develop high-integrity engineering solutions, and ensure designs meet demanding performance, safety, and environmental standards. You will work closely with engineering and project teams to support modelling and analysis , technical reviews, and supplier engagement, while contributing to cost estimation, risk assessment, and the resolution of technical challenges across the programme lifecycle. Core duties: Lead the end-to-end design and development of complex fluid systems, ensuring alignment with operational, safety, and environmental requirements Produce and review engineering deliverables including schematics, P&IDs, calculations, system descriptions, and 3D models Perform advanced system analyses (flow, pressure, thermal, transient) to validate performance under demanding conditions Select and assess mechanical equipment (e.g. pumps, compressors, valves, heat exchangers), ensuring compliance with environmental and operational requirements Review supplier documentation and ensure integration with system requirements including maintainability and accessibility Contribute to technical reviews, hazard studies, and verification and validation activities Support resolution of technical issues, design changes, and non-conformances across the engineering lifecycle Essential Skills: Strong mechanical engineering expertise in fluid systems, with knowledge of fluid dynamics, thermodynamics, and system modelling Experience leading the design and development of complex mechanical systems Ability to produce and review detailed engineering documentation (P&IDs, calculations, system descriptions, 3D models) Experience performing system analysis (flow, pressure, thermal, and transient behaviour) Knowledge of equipment selection and integration (e.g. pumps, valves, heat exchangers) within complex systems Experience in technical reviews, verification & validation, problem-solving, and working with suppliers; familiarity with tools such as FloMASTER, CFD, MATLAB or ANSYS desirable The Mechanical Engineering Discipline Team: This is an exciting opportunity to join the SSN-AUKUS Platform Mechanical Integrated Delivery Team as a Principal Mechanical Design Engineer, acting as a technical specialist for critical compressible and incompressible fluid systems essential to submarine operations. You will take ownership of high-integrity mechanical designs in one of the most demanding engineering environments, working across multidisciplinary teams to develop complex system solutions, influence platform-level decisions and ensure designs meet strict safety, performance and environmental standards. This role offers the chance to contribute directly to one of the UK's most advanced defence programmes. Relocation support may be available for submarine roles, subject to eligibility criteria. A place where everyone can thrive: We're committed to building an inclusive workplace where everyone feels valued and supported. We welcome applications from all suitably qualified people and encourage discussion of reasonable adjustments where needed. Please be aware that many roles at BAE Systems are subject to security and export control restrictions. Applicants must meet Baseline Personnel Security Standard, and many roles require higher levels of National Security Vetting, including 5-10 years continuous UK residency depending on the role . Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. Lifelong learning, meaningful work, and a supportive culture enable you to grow with confidence . You'll be recognised for your contribution and supported with rewards that matter most to you. Closing Date: 1st May 2026 We reserve the right to close this vacancy early if we receive sufficient applications. If you are interested, please apply as early as possible.

Job Title: Principal Mechanical Design Engineer Location: Barrow-In-Furness, hybrid We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: Circa £55,000 depending on experience Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering advanced, technology-led defence, aerospace and security solutions, shaping a safer future for all of us. From the depths of the ocean to the far reaches of space, there's no limit to where a career at BAE Systems could take you. What you will be doing: In this role, you will lead the design and development of complex mechanical fluid systems that support critical submarine platform functions. You will define system requirements, develop high-integrity engineering solutions, and ensure designs meet demanding performance, safety, and environmental standards. You will work closely with engineering and project teams to support modelling and analysis , technical reviews, and supplier engagement, while contributing to cost estimation, risk assessment, and the resolution of technical challenges across the programme lifecycle. Core duties: Lead the end-to-end design and development of complex fluid systems, ensuring alignment with operational, safety, and environmental requirements Produce and review engineering deliverables including schematics, P&IDs, calculations, system descriptions, and 3D models Perform advanced system analyses (flow, pressure, thermal, transient) to validate performance under demanding conditions Select and assess mechanical equipment (e.g. pumps, compressors, valves, heat exchangers), ensuring compliance with environmental and operational requirements Review supplier documentation and ensure integration with system requirements including maintainability and accessibility Contribute to technical reviews, hazard studies, and verification and validation activities Support resolution of technical issues, design changes, and non-conformances across the engineering lifecycle Essential Skills: Strong mechanical engineering expertise in fluid systems, with knowledge of fluid dynamics, thermodynamics, and system modelling Experience leading the design and development of complex mechanical systems Ability to produce and review detailed engineering documentation (P&IDs, calculations, system descriptions, 3D models) Experience performing system analysis (flow, pressure, thermal, and transient behaviour) Knowledge of equipment selection and integration (e.g. pumps, valves, heat exchangers) within complex systems Experience in technical reviews, verification & validation, problem-solving, and working with suppliers; familiarity with tools such as FloMASTER, CFD, MATLAB or ANSYS desirable The Mechanical Engineering Discipline Team: This is an exciting opportunity to join the SSN-AUKUS Platform Mechanical Integrated Delivery Team as a Principal Mechanical Design Engineer, acting as a technical specialist for critical compressible and incompressible fluid systems essential to submarine operations. You will take ownership of high-integrity mechanical designs in one of the most demanding engineering environments, working across multidisciplinary teams to develop complex system solutions, influence platform-level decisions and ensure designs meet strict safety, performance and environmental standards. This role offers the chance to contribute directly to one of the UK's most advanced defence programmes. Relocation support may be available for submarine roles, subject to eligibility criteria. A place where everyone can thrive: We're committed to building an inclusive workplace where everyone feels valued and supported. We welcome applications from all suitably qualified people and encourage discussion of reasonable adjustments where needed. Please be aware that many roles at BAE Systems are subject to security and export control restrictions. Applicants must meet Baseline Personnel Security Standard, and many roles require higher levels of National Security Vetting, including 5-10 years continuous UK residency depending on the role . Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. Lifelong learning, meaningful work, and a supportive culture enable you to grow with confidence . You'll be recognised for your contribution and supported with rewards that matter most to you. Closing Date: 1st May 2026 We reserve the right to close this vacancy early if we receive sufficient applications. If you are interested, please apply as early as possible.

Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow - shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space - there's no limit to where a career at BAE Systems could take you. What you'll be doing: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You will oversee project scope, manage design changes and work closely with stakeholders and suppliers to identify and address risks early. You will lead programme-level design reviews, coordinate stakeholders and manage design baselines while ensuring design governance is maintained and Certificates of Design are produced where required. You will also review and influence technical requirements and architecture to support effective system integration across sub-systems and specialist areas, while providing subject matter expertise in the integration, validation and verification of systems. Core duties: You'll have extensive experience in network or software engineering, ideally with a background in operations You'll have the ability to take the lead on technical matters and provide expert guidance You'll have Chartered Engineer status or be working towards it You'll have familiarity with DOORS and prior hands-on experience using it You'll have proven experience in change management processes The In-Service Programme team: You will be joining the In-Service Programme team, working on the V Class, where you'll thrive in a fast-paced environment, delivering high-quality results within tight enterprise timelines. As part of a medium-sized core team of 6-12, you'll also collaborate with a wider group of around 30, engaging with a broad stakeholder network. This role demands technical leadership , owning challenges , proactively solving problems, and working with the right stakeholders to drive solutions forward. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work - this is a place where you can grow your career with confidence and be empowered to be your best. You'll be recognised for your contribution and enjoy rewards tailored to what's most important to you and your family - support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make. A place where everyone can thrive. We're committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks. Closing Date : 1st May 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. KI1

Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow - shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space - there's no limit to where a career at BAE Systems could take you. What you'll be doing: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You will oversee project scope, manage design changes and work closely with stakeholders and suppliers to identify and address risks early. You will lead programme-level design reviews, coordinate stakeholders and manage design baselines while ensuring design governance is maintained and Certificates of Design are produced where required. You will also review and influence technical requirements and architecture to support effective system integration across sub-systems and specialist areas, while providing subject matter expertise in the integration, validation and verification of systems. Core duties: You'll have extensive experience in network or software engineering, ideally with a background in operations You'll have the ability to take the lead on technical matters and provide expert guidance You'll have Chartered Engineer status or be working towards it You'll have familiarity with DOORS and prior hands-on experience using it You'll have proven experience in change management processes The In-Service Programme team: You will be joining the In-Service Programme team, working on the V Class, where you'll thrive in a fast-paced environment, delivering high-quality results within tight enterprise timelines. As part of a medium-sized core team of 6-12, you'll also collaborate with a wider group of around 30, engaging with a broad stakeholder network. This role demands technical leadership , owning challenges , proactively solving problems, and working with the right stakeholders to drive solutions forward. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work - this is a place where you can grow your career with confidence and be empowered to be your best. You'll be recognised for your contribution and enjoy rewards tailored to what's most important to you and your family - support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make. A place where everyone can thrive. We're committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks. Closing Date : 1st May 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. KI1

Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow - shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space - there's no limit to where a career at BAE Systems could take you. What you'll be doing: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You will oversee project scope, manage design changes and work closely with stakeholders and suppliers to identify and address risks early. You will lead programme-level design reviews, coordinate stakeholders and manage design baselines while ensuring design governance is maintained and Certificates of Design are produced where required. You will also review and influence technical requirements and architecture to support effective system integration across sub-systems and specialist areas, while providing subject matter expertise in the integration, validation and verification of systems. Core duties: You'll have extensive experience in network or software engineering, ideally with a background in operations You'll have the ability to take the lead on technical matters and provide expert guidance You'll have Chartered Engineer status or be working towards it You'll have familiarity with DOORS and prior hands-on experience using it You'll have proven experience in change management processes The In-Service Programme team: You will be joining the In-Service Programme team, working on the V Class, where you'll thrive in a fast-paced environment, delivering high-quality results within tight enterprise timelines. As part of a medium-sized core team of 6-12, you'll also collaborate with a wider group of around 30, engaging with a broad stakeholder network. This role demands technical leadership , owning challenges , proactively solving problems, and working with the right stakeholders to drive solutions forward. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work - this is a place where you can grow your career with confidence and be empowered to be your best. You'll be recognised for your contribution and enjoy rewards tailored to what's most important to you and your family - support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make. A place where everyone can thrive. We're committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks. Closing Date : 1st May 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. KI1

Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow - shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space - there's no limit to where a career at BAE Systems could take you. What you'll be doing: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You will oversee project scope, manage design changes and work closely with stakeholders and suppliers to identify and address risks early. You will lead programme-level design reviews, coordinate stakeholders and manage design baselines while ensuring design governance is maintained and Certificates of Design are produced where required. You will also review and influence technical requirements and architecture to support effective system integration across sub-systems and specialist areas, while providing subject matter expertise in the integration, validation and verification of systems. Core duties: You'll have extensive experience in network or software engineering, ideally with a background in operations You'll have the ability to take the lead on technical matters and provide expert guidance You'll have Chartered Engineer status or be working towards it You'll have familiarity with DOORS and prior hands-on experience using it You'll have proven experience in change management processes The In-Service Programme team: You will be joining the In-Service Programme team, working on the V Class, where you'll thrive in a fast-paced environment, delivering high-quality results within tight enterprise timelines. As part of a medium-sized core team of 6-12, you'll also collaborate with a wider group of around 30, engaging with a broad stakeholder network. This role demands technical leadership , owning challenges , proactively solving problems, and working with the right stakeholders to drive solutions forward. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work - this is a place where you can grow your career with confidence and be empowered to be your best. You'll be recognised for your contribution and enjoy rewards tailored to what's most important to you and your family - support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make. A place where everyone can thrive. We're committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks. Closing Date : 1st May 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. KI1

Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow - shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space - there's no limit to where a career at BAE Systems could take you. What you'll be doing: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You will oversee project scope, manage design changes and work closely with stakeholders and suppliers to identify and address risks early. You will lead programme-level design reviews, coordinate stakeholders and manage design baselines while ensuring design governance is maintained and Certificates of Design are produced where required. You will also review and influence technical requirements and architecture to support effective system integration across sub-systems and specialist areas, while providing subject matter expertise in the integration, validation and verification of systems. Core duties: You'll have extensive experience in network or software engineering, ideally with a background in operations You'll have the ability to take the lead on technical matters and provide expert guidance You'll have Chartered Engineer status or be working towards it You'll have familiarity with DOORS and prior hands-on experience using it You'll have proven experience in change management processes The In-Service Programme team: You will be joining the In-Service Programme team, working on the V Class, where you'll thrive in a fast-paced environment, delivering high-quality results within tight enterprise timelines. As part of a medium-sized core team of 6-12, you'll also collaborate with a wider group of around 30, engaging with a broad stakeholder network. This role demands technical leadership , owning challenges , proactively solving problems, and working with the right stakeholders to drive solutions forward. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work - this is a place where you can grow your career with confidence and be empowered to be your best. You'll be recognised for your contribution and enjoy rewards tailored to what's most important to you and your family - support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make. A place where everyone can thrive. We're committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks. Closing Date : 1st May 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. KI1

Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow - shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space - there's no limit to where a career at BAE Systems could take you. What you'll be doing: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You will oversee project scope, manage design changes and work closely with stakeholders and suppliers to identify and address risks early. You will lead programme-level design reviews, coordinate stakeholders and manage design baselines while ensuring design governance is maintained and Certificates of Design are produced where required. You will also review and influence technical requirements and architecture to support effective system integration across sub-systems and specialist areas, while providing subject matter expertise in the integration, validation and verification of systems. Core duties: You'll have extensive experience in network or software engineering, ideally with a background in operations You'll have the ability to take the lead on technical matters and provide expert guidance You'll have Chartered Engineer status or be working towards it You'll have familiarity with DOORS and prior hands-on experience using it You'll have proven experience in change management processes The In-Service Programme team: You will be joining the In-Service Programme team, working on the V Class, where you'll thrive in a fast-paced environment, delivering high-quality results within tight enterprise timelines. As part of a medium-sized core team of 6-12, you'll also collaborate with a wider group of around 30, engaging with a broad stakeholder network. This role demands technical leadership , owning challenges , proactively solving problems, and working with the right stakeholders to drive solutions forward. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work - this is a place where you can grow your career with confidence and be empowered to be your best. You'll be recognised for your contribution and enjoy rewards tailored to what's most important to you and your family - support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make. A place where everyone can thrive. We're committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks. Closing Date : 1st May 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. KI1

Job Title: Principal Mechanical Design Engineer Location: Barrow-In-Furness, hybrid We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: Circa £55,000 depending on experience Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering advanced, technology-led defence, aerospace and security solutions, shaping a safer future for all of us. From the depths of the ocean to the far reaches of space, there's no limit to where a career at BAE Systems could take you. What you will be doing: In this role, you will lead the design and development of complex mechanical fluid systems that support critical submarine platform functions. You will define system requirements, develop high-integrity engineering solutions, and ensure designs meet demanding performance, safety, and environmental standards. You will work closely with engineering and project teams to support modelling and analysis , technical reviews, and supplier engagement, while contributing to cost estimation, risk assessment, and the resolution of technical challenges across the programme lifecycle. Core duties: Lead the end-to-end design and development of complex fluid systems, ensuring alignment with operational, safety, and environmental requirements Produce and review engineering deliverables including schematics, P&IDs, calculations, system descriptions, and 3D models Perform advanced system analyses (flow, pressure, thermal, transient) to validate performance under demanding conditions Select and assess mechanical equipment (e.g. pumps, compressors, valves, heat exchangers), ensuring compliance with environmental and operational requirements Review supplier documentation and ensure integration with system requirements including maintainability and accessibility Contribute to technical reviews, hazard studies, and verification and validation activities Support resolution of technical issues, design changes, and non-conformances across the engineering lifecycle Essential Skills: Strong mechanical engineering expertise in fluid systems, with knowledge of fluid dynamics, thermodynamics, and system modelling Experience leading the design and development of complex mechanical systems Ability to produce and review detailed engineering documentation (P&IDs, calculations, system descriptions, 3D models) Experience performing system analysis (flow, pressure, thermal, and transient behaviour) Knowledge of equipment selection and integration (e.g. pumps, valves, heat exchangers) within complex systems Experience in technical reviews, verification & validation, problem-solving, and working with suppliers; familiarity with tools such as FloMASTER, CFD, MATLAB or ANSYS desirable The Mechanical Engineering Discipline Team: This is an exciting opportunity to join the SSN-AUKUS Platform Mechanical Integrated Delivery Team as a Principal Mechanical Design Engineer, acting as a technical specialist for critical compressible and incompressible fluid systems essential to submarine operations. You will take ownership of high-integrity mechanical designs in one of the most demanding engineering environments, working across multidisciplinary teams to develop complex system solutions, influence platform-level decisions and ensure designs meet strict safety, performance and environmental standards. This role offers the chance to contribute directly to one of the UK's most advanced defence programmes. Relocation support may be available for submarine roles, subject to eligibility criteria. A place where everyone can thrive: We're committed to building an inclusive workplace where everyone feels valued and supported. We welcome applications from all suitably qualified people and encourage discussion of reasonable adjustments where needed. Please be aware that many roles at BAE Systems are subject to security and export control restrictions. Applicants must meet Baseline Personnel Security Standard, and many roles require higher levels of National Security Vetting, including 5-10 years continuous UK residency depending on the role . Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. Lifelong learning, meaningful work, and a supportive culture enable you to grow with confidence . You'll be recognised for your contribution and supported with rewards that matter most to you. Closing Date: 1st May 2026 We reserve the right to close this vacancy early if we receive sufficient applications. If you are interested, please apply as early as possible.

Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow - shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space - there's no limit to where a career at BAE Systems could take you. What you'll be doing: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You will oversee project scope, manage design changes and work closely with stakeholders and suppliers to identify and address risks early. You will lead programme-level design reviews, coordinate stakeholders and manage design baselines while ensuring design governance is maintained and Certificates of Design are produced where required. You will also review and influence technical requirements and architecture to support effective system integration across sub-systems and specialist areas, while providing subject matter expertise in the integration, validation and verification of systems. Core duties: You'll have extensive experience in network or software engineering, ideally with a background in operations You'll have the ability to take the lead on technical matters and provide expert guidance You'll have Chartered Engineer status or be working towards it You'll have familiarity with DOORS and prior hands-on experience using it You'll have proven experience in change management processes The In-Service Programme team: You will be joining the In-Service Programme team, working on the V Class, where you'll thrive in a fast-paced environment, delivering high-quality results within tight enterprise timelines. As part of a medium-sized core team of 6-12, you'll also collaborate with a wider group of around 30, engaging with a broad stakeholder network. This role demands technical leadership , owning challenges , proactively solving problems, and working with the right stakeholders to drive solutions forward. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work - this is a place where you can grow your career with confidence and be empowered to be your best. You'll be recognised for your contribution and enjoy rewards tailored to what's most important to you and your family - support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make. A place where everyone can thrive. We're committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks. Closing Date : 1st May 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. KI1

Job Title: Principal Systems Engineer Location: Frimley, Hybrid, 3 days on site weekly We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow - shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space - there's no limit to where a career at BAE Systems could take you. What you'll be doing: In this role, you will provide technical ownership of CCS design, supporting the Engineering Manager in delivering in-service programmes and leading key design decisions . You will oversee project scope, manage design changes and work closely with stakeholders and suppliers to identify and address risks early. You will lead programme-level design reviews, coordinate stakeholders and manage design baselines while ensuring design governance is maintained and Certificates of Design are produced where required. You will also review and influence technical requirements and architecture to support effective system integration across sub-systems and specialist areas, while providing subject matter expertise in the integration, validation and verification of systems. Core duties: You'll have extensive experience in network or software engineering, ideally with a background in operations You'll have the ability to take the lead on technical matters and provide expert guidance You'll have Chartered Engineer status or be working towards it You'll have familiarity with DOORS and prior hands-on experience using it You'll have proven experience in change management processes The In-Service Programme team: You will be joining the In-Service Programme team, working on the V Class, where you'll thrive in a fast-paced environment, delivering high-quality results within tight enterprise timelines. As part of a medium-sized core team of 6-12, you'll also collaborate with a wider group of around 30, engaging with a broad stakeholder network. This role demands technical leadership , owning challenges , proactively solving problems, and working with the right stakeholders to drive solutions forward. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work - this is a place where you can grow your career with confidence and be empowered to be your best. You'll be recognised for your contribution and enjoy rewards tailored to what's most important to you and your family - support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make. A place where everyone can thrive. We're committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do. Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks. Closing Date : 1st May 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. KI1

We are currently recruiting for a Senior Nuclear Waste Assessor to join our Nuclear Regulation Group At the Environment Agency, we are responsible for regulating the disposal of radioactive waste across the whole of the nuclear industry in England. Our nuclear waste assessors provide specialist technical advice and support as part of our regulatory capability. Using your in-depth knowledge of radioactive waste management and environmental safety factors, you ll work alongside our nuclear site regulators, as well as interacting with a range of external bodies, to determine the suitability of proposals for managing and disposing of radioactive waste at both proposed and existing facilities. Representing the Environment Agency to the nuclear industry, other regulators in the UK and overseas, the public and occasionally the media, your work will have a tangible impact on radioactive waste management in the UK. Why Choose Us: Make a real difference: By joining our team, your work will actively contribute to building a more resilient and sustainable environment in which we can all thrive and tackling the challenges posed by climate change head-on. Professional growth: The Environment Agency offers opportunities for career advancement and the chance to work on diverse and impactful projects; you ll gain valuable experience and enhance your skills as part of our dedicated team. Continuous learning: It s not just your own professional development that will be encouraged. You ll play a vital role in coordinating the delivery of technical training and mentoring of staff on regulation activities. Collaboration and partnership: Collaborate with experienced professionals in a supportive and inclusive environment, and play a key role where continuous learning, through your coordination and delivery of technical training and the mentoring of staff on monitoring activities will ensure a consistent and professional service. Team environment: Work as part of a close-knit multi-disciplinary team of like-minded individuals who share your passion for the environment. Together, we make a real impact and create a better world for all. Champion Health, Safety and Wellbeing: Become the champion for and health, safety and wellbeing (HSW) practices. You will play a leadership role in promoting a positive HSW culture across the regulation team. Incident Response: Responding to incidents is a central part of what we do. You ll be required to have an incident role and make yourself available to respond to incidents or provide business continuity support during an incident. This may attract an additional payment and full training and alternative working arrangements will be available to support you with your incident role. What will you do? Senior Nuclear Waste Assessors are part of our Nuclear Regulation Group. They provide specialist technical advice to support our regulation of existing nuclear sites, and to influence the environmental performance of future facilities. You will lead specialist technical input in one or more of the following areas according to your area of experience: Solid radioactive waste characterisation, optimisation, treatment and conditioning Solid waste disposal engineering, site characterisation and associated hydrogeology and geochemistry Assessment of environmental safety cases, including proposals for on-site, near-surface and geological disposal of wastes Conceptual and numerical modelling, analysis of results, scenario analysis and approaches to verification, validation and uncertainty Assessment of nuclear site waste management plans for higher activity wastes Contribution to the development of nuclear waste management policy, regulatory guidance and internal technical guidance What will I need? Essential: Together with a Scientific Degree or equivalent vocational experience, you ll have lived in the UK for the last 3 years in line with Environment Agency enhanced security checks. We expect our Senior Nuclear Waste Assessors to join us with significant experience of working in or for the nuclear industry and be able to lead and understand our work from day one. You ll have experience of the disposal and/or preparation for disposal of solid radioactive waste within the nuclear or related industry with a sound understanding of corresponding environmental challenges and issues. You ll also need : A proven ability to assess and analyse technical proposals and safety cases for radioactive waste management and disposal To make decisions by assessing incomplete and disparate information/evidence. The ability to prioritise work to ensure tasks are achieved to time, quality and cost Technical report writing capability Experience of working in a customer-facing role and understanding of good customer practice The ability to develop and maintain relationships with immediate team members and those from other teams The ability to communicate with and influence the full range of internal and external stakeholders with whom you ll interact to ensure that our nuclear regulation programmes are delivered The role involves work across office and nuclear site locations in England so there will be some travel . Occasional overseas travel may be required. Nuclear sites are generally not conveniently accessible by public transport; hence the post requires a full UK driving licence. What s in it for you? You ll benefit from a culture that embraces difference and is inclusive where you ll feel supported and trusted to do the right thing. We ll invest in you and allow you to grow and shape your career. What s more, you ll have access to our great benefits package including: A competitive salary 27 days holiday + 8 bank holidays Great career opportunities Maternity, paternity, and adoption leave scheme A range of flexible working options plus many more! As an organisation, we strive to reflect the communities we serve, to achieve this we welcome applications from all backgrounds regardless of race, sexual orientation, and religion. If you have any questions regarding the vacancy or application process, please contact the recruitment team. Don t miss this opportunity to be part of the UK s biggest environmental organisation. Join us and together, let s tackle the challenges of a changing climate, ensure nuclear energy is a safe and secure energy source and build a more sustainable future. Apply now and embark on a rewarding and fulfilling career journey with the Environment Agency. Advert Closing Date: 27th April Interview Dates: Week commencing 18th May face to face interviews in Birmingham

Job Title: Principal Mechanical Design Engineer Location: Barrow-In-Furness, hybrid We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: Circa £55,000 depending on experience Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering advanced, technology-led defence, aerospace and security solutions, shaping a safer future for all of us. From the depths of the ocean to the far reaches of space, there's no limit to where a career at BAE Systems could take you. What you will be doing: In this role, you will lead the design and development of complex mechanical fluid systems that support critical submarine platform functions. You will define system requirements, develop high-integrity engineering solutions, and ensure designs meet demanding performance, safety, and environmental standards. You will work closely with engineering and project teams to support modelling and analysis , technical reviews, and supplier engagement, while contributing to cost estimation, risk assessment, and the resolution of technical challenges across the programme lifecycle. Core duties: Lead the end-to-end design and development of complex fluid systems, ensuring alignment with operational, safety, and environmental requirements Produce and review engineering deliverables including schematics, P&IDs, calculations, system descriptions, and 3D models Perform advanced system analyses (flow, pressure, thermal, transient) to validate performance under demanding conditions Select and assess mechanical equipment (e.g. pumps, compressors, valves, heat exchangers), ensuring compliance with environmental and operational requirements Review supplier documentation and ensure integration with system requirements including maintainability and accessibility Contribute to technical reviews, hazard studies, and verification and validation activities Support resolution of technical issues, design changes, and non-conformances across the engineering lifecycle Essential Skills: Strong mechanical engineering expertise in fluid systems, with knowledge of fluid dynamics, thermodynamics, and system modelling Experience leading the design and development of complex mechanical systems Ability to produce and review detailed engineering documentation (P&IDs, calculations, system descriptions, 3D models) Experience performing system analysis (flow, pressure, thermal, and transient behaviour) Knowledge of equipment selection and integration (e.g. pumps, valves, heat exchangers) within complex systems Experience in technical reviews, verification & validation, problem-solving, and working with suppliers; familiarity with tools such as FloMASTER, CFD, MATLAB or ANSYS desirable The Mechanical Engineering Discipline Team: This is an exciting opportunity to join the SSN-AUKUS Platform Mechanical Integrated Delivery Team as a Principal Mechanical Design Engineer, acting as a technical specialist for critical compressible and incompressible fluid systems essential to submarine operations. You will take ownership of high-integrity mechanical designs in one of the most demanding engineering environments, working across multidisciplinary teams to develop complex system solutions, influence platform-level decisions and ensure designs meet strict safety, performance and environmental standards. This role offers the chance to contribute directly to one of the UK's most advanced defence programmes. Relocation support may be available for submarine roles, subject to eligibility criteria. A place where everyone can thrive: We're committed to building an inclusive workplace where everyone feels valued and supported. We welcome applications from all suitably qualified people and encourage discussion of reasonable adjustments where needed. Please be aware that many roles at BAE Systems are subject to security and export control restrictions. Applicants must meet Baseline Personnel Security Standard, and many roles require higher levels of National Security Vetting, including 5-10 years continuous UK residency depending on the role . Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. Lifelong learning, meaningful work, and a supportive culture enable you to grow with confidence . You'll be recognised for your contribution and supported with rewards that matter most to you. Closing Date: 1st May 2026 We reserve the right to close this vacancy early if we receive sufficient applications. If you are interested, please apply as early as possible.

We are currently recruiting for a Nuclear Waste Assessor to join our Nuclear Regulation Group. At the Environment Agency, we are responsible for regulating the disposal of radioactive waste across the whole of the nuclear industry in England. Our nuclear waste assessors provide specialist technical advice and support as part of our regulatory capability. Using your knowledge of radioactive waste management and environmental safety factors, you ll work alongside our nuclear site regulators, as well as interacting with a range of external bodies, to determine the suitability of proposals for managing and disposing of radioactive waste at both proposed and existing facilities. Representing the Environment Agency to the nuclear industry, other regulators in the UK and overseas, the public and occasionally the media, your work will have a tangible impact on radioactive waste management in the UK. Why Choose Us: Make a real difference: By joining our team, your work will actively contribute to building a more resilient and sustainable environment in which we can all thrive and tackling the challenges posed by climate change head-on. Professional growth: The Environment Agency offers opportunities for career advancement and the chance to work on diverse and impactful projects; you ll gain valuable experience and enhance your skills as part of our dedicated team. Continuous learning: It s not just your own professional development that will be encouraged. You ll play a vital role in coordinating the delivery of technical training and mentoring of staff on regulation activities. Collaboration and partnership: Collaborate with experienced professionals in a supportive and inclusive environment, and play a key role where continuous learning, through your coordination and delivery of technical training and the mentoring of staff on monitoring activities will ensure a consistent and professional service. Team environment: Work as part of a close-knit multi-disciplinary team of like-minded individuals who share your passion for the environment. Together, we make a real impact and create a better world for all. Champion Health, Safety and Wellbeing: Become the champion for and health, safety and wellbeing (HSW) practices. You will play a leadership role in promoting a positive HSW culture across the regulation team. Incident Response: Responding to incidents is a central part of what we do. You ll be required to have an incident role and make yourself available to respond to incidents or provide business continuity support during an incident. This may attract an additional payment and full training and alternative working arrangements will be available to support you with your incident role. What will you do? Nuclear Waste Assessors are part of our Nuclear Regulation Group. They provide specialist technical advice to support our regulation of existing nuclear sites, and to influence the environmental performance of future facilities. You will support specialist technical input in one or more of the following areas according to your area of experience: Solid radioactive waste characterisation, optimisation, treatment and conditioning Solid waste disposal engineering, site characterisation and associated hydrogeology and geochemistry Assessment of environmental safety cases, including proposals for on-site, near-surface and geological disposal of wastes Conceptual and numerical modelling, analysis of results, scenario analysis and approaches to verification, validation and uncertainty Assessment of nuclear site waste management plans for higher activity wastes Contribution to the development of nuclear waste management policy, regulatory guidance and internal technical guidance. What will I need? Essential: Together with a scientific degree or equivalent vocational experience, you ll have lived in the UK for the last 3 years in line with Environment Agency enhanced security checks. You ll have some experience of the disposal and/or preparation for disposal of solid radioactive waste within the nuclear or associated industry with a sound understanding of corresponding environmental challenges and issues. You ll be looking to further develop your skills. You ll also possess a proven ability to assess and analyse technical proposals. Experience of safety cases for radioactive waste management and disposal is desirable. You ll also need: A proven ability to assess and analyse technical proposals, ideally with experience of assessing safety cases for radioactive waste management and disposal To make decisions by assessing incomplete and disparate information/evidence The ability to prioritise work to ensure tasks are achieved to time, quality and cost. The ability to make decisions by assessing incomplete and disparate information/evidence Ability to prioritise work to ensure tasks are achieved to time, quality and cost Excellent technical report writing Experience of working in a customer-facing role and understanding of good customer practice The ability to develop and maintain relationships with immediate team members and those from other teams The ability to communicate with and influence the full range of internal and external stakeholders with whom you ll interact to ensure that our nuclear regulation programmes are delivered The role involves work across office and nuclear site locations in England so there will be some travel. Occasional overseas travel may be required. Nuclear sites are generally not conveniently accessible by public transport; hence the post requires a full UK driving licence. What s in it for you? You ll benefit from a culture that embraces difference and is inclusive where you ll feel supported and trusted to do the right thing. We ll invest in you and allow you to grow and shape your career. What s more, you ll have access to our great benefits package including: A competitive salary 27 days holiday + 8 bank holidays Great career opportunities Maternity, paternity, and adoption leave scheme A range of flexible working options plus many more! As an organisation, we strive to reflect the communities we serve, to achieve this we welcome applications from all backgrounds regardless of race, sexual orientation, and religion. If you have any questions regarding the vacancy or application process, please contact the recruitment team. Don t miss this opportunity to be part of the UK s biggest environmental organisation. Join us and together, let s tackle the challenges of a changing climate, ensure nuclear energy is a safe and secure energy source and build a more sustainable future. Apply now and embark on a rewarding and fulfilling career journey with the Environment Agency. Advert Closing Date: 27th April Interview Dates: Week commencing 18th May - face to face interviews in Birmingham

Job Title: Principal Mechanical Design Engineer Location: Barrow-In-Furness, hybrid We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: Circa £55,000 depending on experience Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering advanced, technology-led defence, aerospace and security solutions, shaping a safer future for all of us. From the depths of the ocean to the far reaches of space, there's no limit to where a career at BAE Systems could take you. What you will be doing: In this role, you will lead the design and development of complex mechanical fluid systems that support critical submarine platform functions. You will define system requirements, develop high-integrity engineering solutions, and ensure designs meet demanding performance, safety, and environmental standards. You will work closely with engineering and project teams to support modelling and analysis , technical reviews, and supplier engagement, while contributing to cost estimation, risk assessment, and the resolution of technical challenges across the programme lifecycle. Core duties: Lead the end-to-end design and development of complex fluid systems, ensuring alignment with operational, safety, and environmental requirements Produce and review engineering deliverables including schematics, P&IDs, calculations, system descriptions, and 3D models Perform advanced system analyses (flow, pressure, thermal, transient) to validate performance under demanding conditions Select and assess mechanical equipment (e.g. pumps, compressors, valves, heat exchangers), ensuring compliance with environmental and operational requirements Review supplier documentation and ensure integration with system requirements including maintainability and accessibility Contribute to technical reviews, hazard studies, and verification and validation activities Support resolution of technical issues, design changes, and non-conformances across the engineering lifecycle Essential Skills: Strong mechanical engineering expertise in fluid systems, with knowledge of fluid dynamics, thermodynamics, and system modelling Experience leading the design and development of complex mechanical systems Ability to produce and review detailed engineering documentation (P&IDs, calculations, system descriptions, 3D models) Experience performing system analysis (flow, pressure, thermal, and transient behaviour) Knowledge of equipment selection and integration (e.g. pumps, valves, heat exchangers) within complex systems Experience in technical reviews, verification & validation, problem-solving, and working with suppliers; familiarity with tools such as FloMASTER, CFD, MATLAB or ANSYS desirable The Mechanical Engineering Discipline Team: This is an exciting opportunity to join the SSN-AUKUS Platform Mechanical Integrated Delivery Team as a Principal Mechanical Design Engineer, acting as a technical specialist for critical compressible and incompressible fluid systems essential to submarine operations. You will take ownership of high-integrity mechanical designs in one of the most demanding engineering environments, working across multidisciplinary teams to develop complex system solutions, influence platform-level decisions and ensure designs meet strict safety, performance and environmental standards. This role offers the chance to contribute directly to one of the UK's most advanced defence programmes. Relocation support may be available for submarine roles, subject to eligibility criteria. A place where everyone can thrive: We're committed to building an inclusive workplace where everyone feels valued and supported. We welcome applications from all suitably qualified people and encourage discussion of reasonable adjustments where needed. Please be aware that many roles at BAE Systems are subject to security and export control restrictions. Applicants must meet Baseline Personnel Security Standard, and many roles require higher levels of National Security Vetting, including 5-10 years continuous UK residency depending on the role . Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. Lifelong learning, meaningful work, and a supportive culture enable you to grow with confidence . You'll be recognised for your contribution and supported with rewards that matter most to you. Closing Date: 1st May 2026 We reserve the right to close this vacancy early if we receive sufficient applications. If you are interested, please apply as early as possible.

Job Title: Principal Mechanical Design Engineer Location: Barrow-In-Furness, hybrid We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: Circa £55,000 depending on experience Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering advanced, technology-led defence, aerospace and security solutions, shaping a safer future for all of us. From the depths of the ocean to the far reaches of space, there's no limit to where a career at BAE Systems could take you. What you will be doing: In this role, you will lead the design and development of complex mechanical fluid systems that support critical submarine platform functions. You will define system requirements, develop high-integrity engineering solutions, and ensure designs meet demanding performance, safety, and environmental standards. You will work closely with engineering and project teams to support modelling and analysis , technical reviews, and supplier engagement, while contributing to cost estimation, risk assessment, and the resolution of technical challenges across the programme lifecycle. Core duties: Lead the end-to-end design and development of complex fluid systems, ensuring alignment with operational, safety, and environmental requirements Produce and review engineering deliverables including schematics, P&IDs, calculations, system descriptions, and 3D models Perform advanced system analyses (flow, pressure, thermal, transient) to validate performance under demanding conditions Select and assess mechanical equipment (e.g. pumps, compressors, valves, heat exchangers), ensuring compliance with environmental and operational requirements Review supplier documentation and ensure integration with system requirements including maintainability and accessibility Contribute to technical reviews, hazard studies, and verification and validation activities Support resolution of technical issues, design changes, and non-conformances across the engineering lifecycle Essential Skills: Strong mechanical engineering expertise in fluid systems, with knowledge of fluid dynamics, thermodynamics, and system modelling Experience leading the design and development of complex mechanical systems Ability to produce and review detailed engineering documentation (P&IDs, calculations, system descriptions, 3D models) Experience performing system analysis (flow, pressure, thermal, and transient behaviour) Knowledge of equipment selection and integration (e.g. pumps, valves, heat exchangers) within complex systems Experience in technical reviews, verification & validation, problem-solving, and working with suppliers; familiarity with tools such as FloMASTER, CFD, MATLAB or ANSYS desirable The Mechanical Engineering Discipline Team: This is an exciting opportunity to join the SSN-AUKUS Platform Mechanical Integrated Delivery Team as a Principal Mechanical Design Engineer, acting as a technical specialist for critical compressible and incompressible fluid systems essential to submarine operations. You will take ownership of high-integrity mechanical designs in one of the most demanding engineering environments, working across multidisciplinary teams to develop complex system solutions, influence platform-level decisions and ensure designs meet strict safety, performance and environmental standards. This role offers the chance to contribute directly to one of the UK's most advanced defence programmes. Relocation support may be available for submarine roles, subject to eligibility criteria. A place where everyone can thrive: We're committed to building an inclusive workplace where everyone feels valued and supported. We welcome applications from all suitably qualified people and encourage discussion of reasonable adjustments where needed. Please be aware that many roles at BAE Systems are subject to security and export control restrictions. Applicants must meet Baseline Personnel Security Standard, and many roles require higher levels of National Security Vetting, including 5-10 years continuous UK residency depending on the role . Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. Lifelong learning, meaningful work, and a supportive culture enable you to grow with confidence . You'll be recognised for your contribution and supported with rewards that matter most to you. Closing Date: 1st May 2026 We reserve the right to close this vacancy early if we receive sufficient applications. If you are interested, please apply as early as possible.

Job Title: Principal Mechanical Design Engineer Location: Barrow-In-Furness, hybrid We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: Circa £55,000 depending on experience Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering advanced, technology-led defence, aerospace and security solutions, shaping a safer future for all of us. From the depths of the ocean to the far reaches of space, there's no limit to where a career at BAE Systems could take you. What you will be doing: In this role, you will lead the design and development of complex mechanical fluid systems that support critical submarine platform functions. You will define system requirements, develop high-integrity engineering solutions, and ensure designs meet demanding performance, safety, and environmental standards. You will work closely with engineering and project teams to support modelling and analysis , technical reviews, and supplier engagement, while contributing to cost estimation, risk assessment, and the resolution of technical challenges across the programme lifecycle. Core duties: Lead the end-to-end design and development of complex fluid systems, ensuring alignment with operational, safety, and environmental requirements Produce and review engineering deliverables including schematics, P&IDs, calculations, system descriptions, and 3D models Perform advanced system analyses (flow, pressure, thermal, transient) to validate performance under demanding conditions Select and assess mechanical equipment (e.g. pumps, compressors, valves, heat exchangers), ensuring compliance with environmental and operational requirements Review supplier documentation and ensure integration with system requirements including maintainability and accessibility Contribute to technical reviews, hazard studies, and verification and validation activities Support resolution of technical issues, design changes, and non-conformances across the engineering lifecycle Essential Skills: Strong mechanical engineering expertise in fluid systems, with knowledge of fluid dynamics, thermodynamics, and system modelling Experience leading the design and development of complex mechanical systems Ability to produce and review detailed engineering documentation (P&IDs, calculations, system descriptions, 3D models) Experience performing system analysis (flow, pressure, thermal, and transient behaviour) Knowledge of equipment selection and integration (e.g. pumps, valves, heat exchangers) within complex systems Experience in technical reviews, verification & validation, problem-solving, and working with suppliers; familiarity with tools such as FloMASTER, CFD, MATLAB or ANSYS desirable The Mechanical Engineering Discipline Team: This is an exciting opportunity to join the SSN-AUKUS Platform Mechanical Integrated Delivery Team as a Principal Mechanical Design Engineer, acting as a technical specialist for critical compressible and incompressible fluid systems essential to submarine operations. You will take ownership of high-integrity mechanical designs in one of the most demanding engineering environments, working across multidisciplinary teams to develop complex system solutions, influence platform-level decisions and ensure designs meet strict safety, performance and environmental standards. This role offers the chance to contribute directly to one of the UK's most advanced defence programmes. Relocation support may be available for submarine roles, subject to eligibility criteria. A place where everyone can thrive: We're committed to building an inclusive workplace where everyone feels valued and supported. We welcome applications from all suitably qualified people and encourage discussion of reasonable adjustments where needed. Please be aware that many roles at BAE Systems are subject to security and export control restrictions. Applicants must meet Baseline Personnel Security Standard, and many roles require higher levels of National Security Vetting, including 5-10 years continuous UK residency depending on the role . Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. Lifelong learning, meaningful work, and a supportive culture enable you to grow with confidence . You'll be recognised for your contribution and supported with rewards that matter most to you. Closing Date: 1st May 2026 We reserve the right to close this vacancy early if we receive sufficient applications. If you are interested, please apply as early as possible.