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Job title: Principal Mechanical Engineer Location: Barrow-in-Furness or Bristol. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you’ll be doing: 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 Support the team in updating documentation required for the design, including: diagrams; technical specifications; supporting calculations; design evidence and justifications Undertake design reviews and presentations to customers Review relevant supplier documentation and ensure it is captured and recorded appropriately Your skills and experiences: In-depth knowledge and experience specifying mechanical equipment and components (heat exchangers, pumps, diesel generators, hydraulic plant, compressors, etc) Any knowledge in Fluid Systems would be beneficial (Air / Hydraulics / Water) Prior experience of problem solving within a build environment / industry would be beneficial Leadership / Team Management experience would be ideal BEng (Hons) / MEng or equivalent in a relevant STEM degree CEng or capable of achieving / working towards CEng Benefits: You’ll receive benefits including a competitive pension scheme, enhanced annual leave incentive and a Company contributed Share Incentive Plan. You’ll also have access to additional benefits such as flexible working, an employee assistance programme, Cycle2work and employee discounts - you may also be eligible for an annual incentive. The Platform Combat Systems team: As the Principal Mechanical Engineer within out Platform Combat Systems Team, you will be joining a team that has spent over 10 years developing equipment to support the Combat System. The team is now moving into a critical phase of the build programme with plenty of opportunities to get involved with the physical product. As the successful candidate you will provide support to the Senior Engineering Manager and/or external specialists during the development and analysis of the mechanical systems. You will also act as Team Lead, managing the day-to-day activities as well as developing and maintaining the competency and skills of the team, project plan and schedule project activities, whilst managing resolutions of any related issues. We offer relocation support across all Submarine roles, subject to meeting eligibility criteria Why BAE Systems? This is a place where you will 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 leave 5 to 10 years of continuous residency in the UK depending in the vetting level required for the role, to allow for meaningful security vetting checks. Closing Date: 19th June 2025 We reserve the right to close this vacancy early if we receive sufficient applications for the role. Therefore, if you are interested, please submit your application as early as possible. #LI-MS1 #LI-Hybrid

I am currently looking for Senior Mechanical Engineers to work on a contract basis with a nuclear client. The key details are below: Job Type: Contract (INSIDE of IR35) Rate: £61 to £80 ph Location: Newbury or Bristol Duration: 12 months Requirements: Extensive Mechanical Engineering Experience Nuclear experience Mechanical handling experience e.g cranes, bogeys, conveyors, lifting equipment, ROVs, remote operating vehicles. Ability to gain Security Clearance If you are interested then please send your CV through and I will be in touch Please click here to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement. To find out more about Progressive please visit -hidden link- Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC387148 England and Wales

Principal Mechanical Design Engineer Location: Wolverhampton, UK Company: Global Engineering OEM Salary: £75,000 basic + Excellent Pension + Flexible & Hybrid Working + Outstanding Benefits About the Principal Mechanical Design Engineer Role We're hiring a Principal Mechanical Design Engineer to join a global leader in complex engineering solutions based near Wolverhampton. This is a senior-level opportunity to lead the design and development of bespoke heavy engineering projects, including welded, fabricated, and machined machinery and equipment. You'll be responsible for delivering high-integrity systems across the full design lifecycle-from FEED (Front-End Engineering Design) to final delivery-while driving innovation, safety, and engineering excellence. Key Responsibilities of the Principal Mechanical Design Engineer: Lead the mechanical design of custom-engineered systems for industrial and safety-critical applications. Manage projects through the full design lifecycle, from concept and FEED to detailed design and manufacture. Apply advanced CAD (e.g., SolidWorks, Inventor) and FEA (e.g., ANSYS, Abaqus) tools to develop and validate designs. Ensure compliance with industry codes and standards (ASME, BS EN, RCC-M, etc.) in a regulated environment. Provide technical leadership and mentorship to junior engineers, promoting a culture of continuous improvement. Collaborate with cross-functional teams including project managers, manufacturing, and quality assurance. What We're Looking For Extensive experience as a Mechanical Design Engineer in a regulated industry (e.g., defence, oil & gas, aerospace, energy, etc.). Strong background in bespoke machinery, heavy engineering systems, or process equipment. High proficiency in 3D CAD and Finite Element Analysis (FEA). Deep understanding of FEED, design for manufacture (DFM), and lifecycle engineering. Experience working to safety-critical standards in sectors such as Oil & Gas, Energy, Pharmaceutical, Defence, or Marine. Exceptional leadership, mentoring, and communication skills. Why Join Us? Be part of a global OEM delivering high-impact engineering solutions. Lead mission-critical projects with real-world applications. Thrive in a collaborative, technically challenging environment with clear career progression. Enjoy a competitive £75,000 basic salary, excellent pension, hybrid working, and a comprehensive benefits package. Access to outstanding professional, career, and technical development opportunities. Apply Now If you're a seasoned Mechanical Design Engineer ready to step into a principal-level role with a world-class engineering organisation, we want to hear from you. Apply today and help shape the future of advanced engineering. To find out more about Progressive please visit -hidden link- Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom| Partnership Number | OC387148 England and Wales

Principal Mechanical Design Engineer Location: Warrington, UK Company: Global Nuclear Engineering OEM Salary: £75,000 basic + Excellent Pension + Flexible & Hybrid Working + Outstanding Benefits About the Principal Mechanical Design Engineer Role: We are seeking a Principal Mechanical Design Engineer to join a global leader in nuclear engineering, based near Warrington. This is a senior-level opportunity to lead the design and development of bespoke, complex, and heavy mechanical handling and process machinery. You'll be instrumental in delivering high-integrity systems for the nuclear sector, overseeing projects from FEED (Front-End Engineering Design) through to final delivery. This role offers the chance to shape technical direction, mentor engineering teams, and influence innovation in a highly regulated and safety-critical environment. Key Responsibilities of Principal Mechanical Design Engineer Lead and oversee the mechanical design of custom-engineered systems for nuclear and industrial applications. Manage full project lifecycle from concept and FEED to detailed design, manufacture, and delivery. Apply advanced CAD (e.g., SolidWorks, Inventor) and FEA (e.g., ANSYS, Abaqus) tools to develop and validate robust designs. Ensure compliance with industry codes and standards (ASME, BS EN, RCC-M, etc.). Provide technical leadership and mentorship to design teams, fostering a culture of engineering excellence. Collaborate with cross-functional teams including project management, manufacturing, and quality assurance to ensure successful project outcomes. What We're Looking For Extensive experience as a Mechanical Design Engineer in a regulated industry (nuclear, defence, oil & gas, aerospace, etc.). Proven track record in leading the design of bespoke machinery, heavy mechanical handling systems, or process equipment. High proficiency in 3D CAD and Finite Element Analysis (FEA). Strong understanding of FEED, design for manufacture (DFM), and lifecycle engineering. Experience working to nuclear or safety-critical standards. Exceptional leadership, mentoring, and communication skills. Why Join Us? Join a global OEM at the forefront of nuclear engineering innovation. Lead mission-critical projects with real-world impact. Thrive in a collaborative, technically challenging environment with clear career progression. Enjoy a competitive £75,000 basic salary, excellent pension, hybrid working, and a comprehensive benefits package. Access to outstanding professional, career, and technical development opportunities. To find out more about Progressive please visit -hidden link- Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom| Partnership Number | OC387148 England and Wales

Principal Mechanical Design Engineer Location: Wolverhampton, UK Company: Global Engineering OEM Salary: Up to £75,000 basic + Excellent Pension + Flexible & Hybrid Working + Outstanding Benefits About the Principal Mechanical Design Engineer Role We're hiring a Principal Mechanical Design Engineer to join a global leader in complex engineering solutions based near Wolverhampton. This is a senior-level opportunity to lead the design and development of bespoke heavy engineering projects, including welded, fabricated, and machined machinery and equipment. You'll be responsible for delivering high-integrity systems across the full design lifecycle-from FEED (Front-End Engineering Design) to final delivery-while driving innovation, safety, and engineering excellence. Key Responsibilities of the Principal Mechanical Design Engineer: Lead the mechanical design of custom-engineered systems for industrial and safety-critical applications. Manage projects through the full design lifecycle, from concept and FEED to detailed design and manufacture. Apply advanced CAD (e.g., SolidWorks, Inventor) and FEA (e.g., ANSYS, Abaqus) tools to develop and validate designs. Ensure compliance with industry codes and standards (ASME, BS EN, RCC-M, etc.) in a regulated environment. Provide technical leadership and mentorship to junior engineers, promoting a culture of continuous improvement. Collaborate with cross-functional teams including project managers, manufacturing, and quality assurance. What We're Looking For Extensive experience as a Mechanical Design Engineer in a regulated industry (e.g., defence, oil & gas, aerospace, energy, etc.). Strong background in bespoke machinery, heavy engineering systems, or process equipment. High proficiency in 3D CAD and Finite Element Analysis (FEA). Deep understanding of FEED, design for manufacture (DFM), and lifecycle engineering. Experience working to safety-critical standards in sectors such as Oil & Gas, Energy, Pharmaceutical, Defence, or Marine. Exceptional leadership, mentoring, and communication skills. Why Join Us? Be part of a global OEM delivering high-impact engineering solutions. Lead mission-critical projects with real-world applications. Thrive in a collaborative, technically challenging environment with clear career progression. Enjoy a competitive £75,000 basic salary, excellent pension, hybrid working, and a comprehensive benefits package. Access to outstanding professional, career, and technical development opportunities. Apply Now If you're a seasoned Mechanical Design Engineer ready to step into a principal-level role with a world-class engineering organisation, we want to hear from you. Apply today and help shape the future of advanced engineering. To find out more about Progressive please visit -hidden link- Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom| Partnership Number | OC387148 England and Wales

Principal Mechanical Design Engineer Location: Warrington, UK Company: Global Nuclear Engineering OEM Salary: £75,000 basic + Excellent Pension + Flexible & Hybrid Working + Outstanding Benefits About the Principal Mechanical Design Engineer Role: We are seeking a Principal Mechanical Design Engineer to join a global leader in nuclear engineering, based near Warrington. This is a senior-level opportunity to lead the design and development of bespoke, complex, and heavy mechanical handling and process machinery. You'll be instrumental in delivering high-integrity systems for the nuclear sector, overseeing projects from FEED (Front-End Engineering Design) through to final delivery. This role offers the chance to shape technical direction, mentor engineering teams, and influence innovation in a highly regulated and safety-critical environment. Key Responsibilities of Principal Mechanical Design Engineer Lead and oversee the mechanical design of custom-engineered systems for nuclear and industrial applications. Manage full project lifecycle from concept and FEED to detailed design, manufacture, and delivery. Apply advanced CAD (e.g., SolidWorks, Inventor) and FEA (e.g., ANSYS, Abaqus) tools to develop and validate robust designs. Ensure compliance with industry codes and standards (ASME, BS EN, RCC-M, etc.). Provide technical leadership and mentorship to design teams, fostering a culture of engineering excellence. Collaborate with cross-functional teams including project management, manufacturing, and quality assurance to ensure successful project outcomes. What We're Looking For Extensive experience as a Mechanical Design Engineer in a regulated industry (nuclear, defence, oil & gas, aerospace, etc.). Proven track record in leading the design of bespoke machinery, heavy mechanical handling systems, or process equipment. High proficiency in 3D CAD and Finite Element Analysis (FEA). Strong understanding of FEED, design for manufacture (DFM), and lifecycle engineering. Experience working to nuclear or safety-critical standards. Exceptional leadership, mentoring, and communication skills. Why Join Us? Join a global OEM at the forefront of nuclear engineering innovation. Lead mission-critical projects with real-world impact. Thrive in a collaborative, technically challenging environment with clear career progression. Enjoy a competitive £75,000 basic salary, excellent pension, hybrid working, and a comprehensive benefits package. Access to outstanding professional, career, and technical development opportunities. To find out more about Progressive please visit -hidden link- Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom| Partnership Number | OC387148 England and Wales

Principal Mechanical Design Engineer Location: Warrington, UK Company: Global Nuclear Engineering OEM Salary: £75,000 basic + Excellent Pension + Flexible & Hybrid Working + Outstanding Benefits About the Principal Mechanical Design Engineer Role: We are seeking a Principal Mechanical Design Engineer to join a global leader in nuclear engineering, based near Warrington. This is a senior-level opportunity to lead the design and development of bespoke, complex, and heavy mechanical handling and process machinery. You'll be instrumental in delivering high-integrity systems for the nuclear sector, overseeing projects from FEED (Front-End Engineering Design) through to final delivery. This role offers the chance to shape technical direction, mentor engineering teams, and influence innovation in a highly regulated and safety-critical environment. Key Responsibilities of Principal Mechanical Design Engineer Lead and oversee the mechanical design of custom-engineered systems for nuclear and industrial applications. Manage full project lifecycle from concept and FEED to detailed design, manufacture, and delivery. Apply advanced CAD (e.g., SolidWorks, Inventor) and FEA (e.g., ANSYS, Abaqus) tools to develop and validate robust designs. Ensure compliance with industry codes and standards (ASME, BS EN, RCC-M, etc.). Provide technical leadership and mentorship to design teams, fostering a culture of engineering excellence. Collaborate with cross-functional teams including project management, manufacturing, and quality assurance to ensure successful project outcomes. What We're Looking For Extensive experience as a Mechanical Design Engineer in a regulated industry (nuclear, defence, oil & gas, aerospace, etc.). Proven track record in leading the design of bespoke machinery, heavy mechanical handling systems, or process equipment. High proficiency in 3D CAD and Finite Element Analysis (FEA). Strong understanding of FEED, design for manufacture (DFM), and lifecycle engineering. Experience working to nuclear or safety-critical standards. Exceptional leadership, mentoring, and communication skills. Why Join Us? Join a global OEM at the forefront of nuclear engineering innovation. Lead mission-critical projects with real-world impact. Thrive in a collaborative, technically challenging environment with clear career progression. Enjoy a competitive £75,000 basic salary, excellent pension, hybrid working, and a comprehensive benefits package. Access to outstanding professional, career, and technical development opportunities. To find out more about Progressive please visit -hidden link- Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom| Partnership Number | OC387148 England and Wales

Principal Mechanical Design Engineer Location: Wolverhampton, UK Company: Global Engineering OEM Salary: Up to £75,000 basic + Excellent Pension + Flexible & Hybrid Working + Outstanding Benefits About the Principal Mechanical Design Engineer Role We're hiring a Principal Mechanical Design Engineer to join a global leader in complex engineering solutions based near Wolverhampton. This is a senior-level opportunity to lead the design and development of bespoke heavy engineering projects, including welded, fabricated, and machined machinery and equipment. You'll be responsible for delivering high-integrity systems across the full design lifecycle-from FEED (Front-End Engineering Design) to final delivery-while driving innovation, safety, and engineering excellence. Key Responsibilities of the Principal Mechanical Design Engineer: Lead the mechanical design of custom-engineered systems for industrial and safety-critical applications. Manage projects through the full design lifecycle, from concept and FEED to detailed design and manufacture. Apply advanced CAD (e.g., SolidWorks, Inventor) and FEA (e.g., ANSYS, Abaqus) tools to develop and validate designs. Ensure compliance with industry codes and standards (ASME, BS EN, RCC-M, etc.) in a regulated environment. Provide technical leadership and mentorship to junior engineers, promoting a culture of continuous improvement. Collaborate with cross-functional teams including project managers, manufacturing, and quality assurance. What We're Looking For Extensive experience as a Mechanical Design Engineer in a regulated industry (e.g., defence, oil & gas, aerospace, energy, etc.). Strong background in bespoke machinery, heavy engineering systems, or process equipment. High proficiency in 3D CAD and Finite Element Analysis (FEA). Deep understanding of FEED, design for manufacture (DFM), and lifecycle engineering. Experience working to safety-critical standards in sectors such as Oil & Gas, Energy, Pharmaceutical, Defence, or Marine. Exceptional leadership, mentoring, and communication skills. Why Join Us? Be part of a global OEM delivering high-impact engineering solutions. Lead mission-critical projects with real-world applications. Thrive in a collaborative, technically challenging environment with clear career progression. Enjoy a competitive £75,000 basic salary, excellent pension, hybrid working, and a comprehensive benefits package. Access to outstanding professional, career, and technical development opportunities. Apply Now If you're a seasoned Mechanical Design Engineer ready to step into a principal-level role with a world-class engineering organisation, we want to hear from you. Apply today and help shape the future of advanced engineering. To find out more about Progressive please visit -hidden link- Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom| Partnership Number | OC387148 England and Wales

Principal Mechanical Design Engineer Location: Wolverhampton, UK Company: Global Engineering OEM Salary: Up to £75,000 basic + Excellent Pension + Flexible & Hybrid Working + Outstanding Benefits About the Principal Mechanical Design Engineer Role We're hiring a Principal Mechanical Design Engineer to join a global leader in complex engineering solutions based near Wolverhampton. This is a senior-level opportunity to lead the design and development of bespoke heavy engineering projects, including welded, fabricated, and machined machinery and equipment. You'll be responsible for delivering high-integrity systems across the full design lifecycle-from FEED (Front-End Engineering Design) to final delivery-while driving innovation, safety, and engineering excellence. Key Responsibilities of the Principal Mechanical Design Engineer: Lead the mechanical design of custom-engineered systems for industrial and safety-critical applications. Manage projects through the full design lifecycle, from concept and FEED to detailed design and manufacture. Apply advanced CAD (e.g., SolidWorks, Inventor) and FEA (e.g., ANSYS, Abaqus) tools to develop and validate designs. Ensure compliance with industry codes and standards (ASME, BS EN, RCC-M, etc.) in a regulated environment. Provide technical leadership and mentorship to junior engineers, promoting a culture of continuous improvement. Collaborate with cross-functional teams including project managers, manufacturing, and quality assurance. What We're Looking For Extensive experience as a Mechanical Design Engineer in a regulated industry (e.g., defence, oil & gas, aerospace, energy, etc.). Strong background in bespoke machinery, heavy engineering systems, or process equipment. High proficiency in 3D CAD and Finite Element Analysis (FEA). Deep understanding of FEED, design for manufacture (DFM), and lifecycle engineering. Experience working to safety-critical standards in sectors such as Oil & Gas, Energy, Pharmaceutical, Defence, or Marine. Exceptional leadership, mentoring, and communication skills. Why Join Us? Be part of a global OEM delivering high-impact engineering solutions. Lead mission-critical projects with real-world applications. Thrive in a collaborative, technically challenging environment with clear career progression. Enjoy a competitive £75,000 basic salary, excellent pension, hybrid working, and a comprehensive benefits package. Access to outstanding professional, career, and technical development opportunities. Apply Now If you're a seasoned Mechanical Design Engineer ready to step into a principal-level role with a world-class engineering organisation, we want to hear from you. Apply today and help shape the future of advanced engineering. To find out more about Progressive please visit -hidden link- Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom| Partnership Number | OC387148 England and Wales

Principal Mechanical Design Engineer Location: Wolverhampton, UK Company: Global Engineering OEM Salary: £75,000 basic + Excellent Pension + Flexible & Hybrid Working + Outstanding Benefits About the Principal Mechanical Design Engineer Role We're hiring a Principal Mechanical Design Engineer to join a global leader in complex engineering solutions based near Wolverhampton. This is a senior-level opportunity to lead the design and development of bespoke heavy engineering projects, including welded, fabricated, and machined machinery and equipment. You'll be responsible for delivering high-integrity systems across the full design lifecycle-from FEED (Front-End Engineering Design) to final delivery-while driving innovation, safety, and engineering excellence. Key Responsibilities of the Principal Mechanical Design Engineer: Lead the mechanical design of custom-engineered systems for industrial and safety-critical applications. Manage projects through the full design lifecycle, from concept and FEED to detailed design and manufacture. Apply advanced CAD (e.g., SolidWorks, Inventor) and FEA (e.g., ANSYS, Abaqus) tools to develop and validate designs. Ensure compliance with industry codes and standards (ASME, BS EN, RCC-M, etc.) in a regulated environment. Provide technical leadership and mentorship to junior engineers, promoting a culture of continuous improvement. Collaborate with cross-functional teams including project managers, manufacturing, and quality assurance. What We're Looking For Extensive experience as a Mechanical Design Engineer in a regulated industry (e.g., defence, oil & gas, aerospace, energy, etc.). Strong background in bespoke machinery, heavy engineering systems, or process equipment. High proficiency in 3D CAD and Finite Element Analysis (FEA). Deep understanding of FEED, design for manufacture (DFM), and lifecycle engineering. Experience working to safety-critical standards in sectors such as Oil & Gas, Energy, Pharmaceutical, Defence, or Marine. Exceptional leadership, mentoring, and communication skills. Why Join Us? Be part of a global OEM delivering high-impact engineering solutions. Lead mission-critical projects with real-world applications. Thrive in a collaborative, technically challenging environment with clear career progression. Enjoy a competitive £75,000 basic salary, excellent pension, hybrid working, and a comprehensive benefits package. Access to outstanding professional, career, and technical development opportunities. Apply Now If you're a seasoned Mechanical Design Engineer ready to step into a principal-level role with a world-class engineering organisation, we want to hear from you. Apply today and help shape the future of advanced engineering. To find out more about Progressive please visit -hidden link- Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom| Partnership Number | OC387148 England and Wales

Principal Mechanical Design Engineer Location: Wolverhampton, UK Company: Global Engineering OEM Salary: £75,000 basic + Excellent Pension + Flexible & Hybrid Working + Outstanding Benefits About the Principal Mechanical Design Engineer Role We're hiring a Principal Mechanical Design Engineer to join a global leader in complex engineering solutions based near Wolverhampton. This is a senior-level opportunity to lead the design and development of bespoke heavy engineering projects, including welded, fabricated, and machined machinery and equipment. You'll be responsible for delivering high-integrity systems across the full design lifecycle-from FEED (Front-End Engineering Design) to final delivery-while driving innovation, safety, and engineering excellence. Key Responsibilities of the Principal Mechanical Design Engineer: Lead the mechanical design of custom-engineered systems for industrial and safety-critical applications. Manage projects through the full design lifecycle, from concept and FEED to detailed design and manufacture. Apply advanced CAD (e.g., SolidWorks, Inventor) and FEA (e.g., ANSYS, Abaqus) tools to develop and validate designs. Ensure compliance with industry codes and standards (ASME, BS EN, RCC-M, etc.) in a regulated environment. Provide technical leadership and mentorship to junior engineers, promoting a culture of continuous improvement. Collaborate with cross-functional teams including project managers, manufacturing, and quality assurance. What We're Looking For Extensive experience as a Mechanical Design Engineer in a regulated industry (e.g., defence, oil & gas, aerospace, energy, etc.). Strong background in bespoke machinery, heavy engineering systems, or process equipment. High proficiency in 3D CAD and Finite Element Analysis (FEA). Deep understanding of FEED, design for manufacture (DFM), and lifecycle engineering. Experience working to safety-critical standards in sectors such as Oil & Gas, Energy, Pharmaceutical, Defence, or Marine. Exceptional leadership, mentoring, and communication skills. Why Join Us? Be part of a global OEM delivering high-impact engineering solutions. Lead mission-critical projects with real-world applications. Thrive in a collaborative, technically challenging environment with clear career progression. Enjoy a competitive £75,000 basic salary, excellent pension, hybrid working, and a comprehensive benefits package. Access to outstanding professional, career, and technical development opportunities. Apply Now If you're a seasoned Mechanical Design Engineer ready to step into a principal-level role with a world-class engineering organisation, we want to hear from you. Apply today and help shape the future of advanced engineering. To find out more about Progressive please visit -hidden link- Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom| Partnership Number | OC387148 England and Wales

Principal Mechanical Design Engineer Location: Warrington, UK Company: Global Nuclear Engineering OEM Salary: £75,000 basic + Excellent Pension + Flexible & Hybrid Working + Outstanding Benefits About the Principal Mechanical Design Engineer Role: We are seeking a Principal Mechanical Design Engineer to join a global leader in nuclear engineering, based near Warrington. This is a senior-level opportunity to lead the design and development of bespoke, complex, and heavy mechanical handling and process machinery. You'll be instrumental in delivering high-integrity systems for the nuclear sector, overseeing projects from FEED (Front-End Engineering Design) through to final delivery. This role offers the chance to shape technical direction, mentor engineering teams, and influence innovation in a highly regulated and safety-critical environment. Key Responsibilities of Principal Mechanical Design Engineer Lead and oversee the mechanical design of custom-engineered systems for nuclear and industrial applications. Manage full project lifecycle from concept and FEED to detailed design, manufacture, and delivery. Apply advanced CAD (e.g., SolidWorks, Inventor) and FEA (e.g., ANSYS, Abaqus) tools to develop and validate robust designs. Ensure compliance with industry codes and standards (ASME, BS EN, RCC-M, etc.). Provide technical leadership and mentorship to design teams, fostering a culture of engineering excellence. Collaborate with cross-functional teams including project management, manufacturing, and quality assurance to ensure successful project outcomes. What We're Looking For Extensive experience as a Mechanical Design Engineer in a regulated industry (nuclear, defence, oil & gas, aerospace, etc.). Proven track record in leading the design of bespoke machinery, heavy mechanical handling systems, or process equipment. High proficiency in 3D CAD and Finite Element Analysis (FEA). Strong understanding of FEED, design for manufacture (DFM), and lifecycle engineering. Experience working to nuclear or safety-critical standards. Exceptional leadership, mentoring, and communication skills. Why Join Us? Join a global OEM at the forefront of nuclear engineering innovation. Lead mission-critical projects with real-world impact. Thrive in a collaborative, technically challenging environment with clear career progression. Enjoy a competitive £75,000 basic salary, excellent pension, hybrid working, and a comprehensive benefits package. Access to outstanding professional, career, and technical development opportunities. To find out more about Progressive please visit -hidden link- Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom| Partnership Number | OC387148 England and Wales

Job Title: Senior/Principal Platform Systems Mechanical Engineer Location: Barrow-in-Furness. This position will require full time on-site presence Salary: Competitive What you’ll be doing: Developing the package of design evidence required to justify a safe, effective design and generate customer confidence in the design solution Specifying and assisting in the build of prototypes, products and systems suitable for testing Providing timely corrective actions on all assigned defects and issues Ensuring that commitments are agreed, reviewed and met Mentoring junior engineers regarding technical matters Making presentations effectively to technical and management audiences and within this, be able to identify and keep abreast of novel technical concepts and markets Author/co-author technical reports, papers, articles, patents and presentations as required Your skills and experiences: Educated to Degree level in Engineering, Mechanical or Science Subjects Be able to design documentation with the ability to present these to customers and wider groups Have the ability to solve complex engineering calculations Have an Engineering Lifecycle background Be proficient in CAD, MS Office and be comfortable with other IT applications Benefits: You’ll receive benefits including a competitive pension scheme, enhanced annual leave allowance and a Company contributed Share Incentive Plan. You’ll also have access to additional benefits such as flexible working, an employee assistance programme, Cycle2work and employee discounts - you may also be eligible for an annual incentive. The T&C Engineering Support team: Being a part of the team, you will have a great opportunity to be involved in the planning and reactive support to ensure that the engineering aspects of testing and commissioning activities are undertaken in a safe and appropriate way whilst ensuring design intent are maintained. It’s a fantastic opportunity to be a part of some of our most complex projects to date and to have great a opportunity for career development. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria Why BAE Systems? This is a place where you will 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 leave 5 to 10 years of continuous residency in the UK depending in the vetting level required for the role, to allow for meaningful security vetting checks. Closing Date: 11th July 2025 We reserve the right to close this vacancy early if we receive sufficient applications for the role. Therefore, if you are interested, please submit your application as early as possible. #LI-MS1 #LI-Onsite