66,948 Experienced Engineer jobs in the United Kingdom

Job title: Principal Mechanical Engineer – Cranes

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 £52,000 (Dependent on experience)

What you’ll be doing:

• Provide technical advice and guidance to the wider business with respect to related issues to ensure compliance with legislation, regulations and standards

• Responsible for reviewing crane related proposals to ensure that the equipment / facilities are designed, constructed, commissioned, operated and maintained in accordance with the appropriate processes and standards

• Review crane and structural related calculations as an Independent Technical Assessor (ITA) and give clear and concise feedback to stakeholders

• Production of technical reports, technical memos and process documents related to cranes and ensuring that they are appropriately classified, authorised and maintained under configuration control

• Point of contact as SME for issues regarding standards for site mechanical lifting systems

• Ability to chair and lead improvements (policy, equipment, capabilities) with the LOLER risk cell set up to ensure compliance with relevant regulations

Your skills and experiences:

• BEng or MEng in Mechanical Engineering

• Experience working with cranes and lifting equipment from a design / specification perspective with a good knowledge of crane related British / European standards

• Working knowledge of Lifting Operations & Lifting Equipment (LOLER) regulations and the ability to confirm operational compliance

• Knowledge of all aspects of EOT cranes including controls and safety features to comply with legislation

• Registered with an Engineering professional institute and have the ability to achieve chartered status

Benefits:

As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts – you may also be eligible for an annual incentive.

The Site Specialist Engineering Team:

We are seeking a Principal Mechanical Engineer with expertise in Electrical Overhead Travelling (EOT) cranes to join our Site Specialist Engineering (SSE) team in Barrow-in-Furness. This multi-disciplinary team sets engineering standards and requirements for site equipment, systems, and facilities, ensuring compliance with legislation and internal processes. In this role, you will act as a Subject Matter Expert, providing technical guidance and support on lifting systems across projects and maintenance activities. 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: 17^th October 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

Job title: Senior/Principal Platform Systems Mechanical Engineer

Location: Barrow-in-Furness. This position will require a full-time presence on-site

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

• Be proficient in CAD, MS Office and be comfortable with other IT applications

Benefits:

As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts – you may also be eligible for an annual incentive.

The Mechanical Platform Systems team:

Being part of a 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 opportunity career development. 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: 10^th October 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

Job Title: Lead Mechanical Engineer – Hydraulic Systems

Location: Weymouth, Filton, Frimley – 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

What you’ll be doing

• Reviewing combat design’s and providing Mechanical design feedback (Structural, Thermal & Hydraulic) in the Naval/Marine domain
• Taking ownership of specific Mechanical design issues and managing Integrated Combat Systems
• Liaising with internal and external stakeholder’s while managing updates and design inputs
• Production of CS Mechanical design interface information
• Performing Engineering calculations and generating associated test specifications and procedures
• Producing Engineering Drawings in FORAN/CADS5/Viso to BS 888

Your skills and experiences

Essential:

• Hydraulic / Pneumatic Systems Engineering experience
• Degree or HND qualified with experience
• Chartered or working towards Chartership

Desirable:

• Defence Standard knowledge/ Experience

Benefits

As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts – you may also be eligible for an annual incentive.

The Platform Physical Design Team:

Part of the specialist engineering services, the Platform Physical Design and Installation Service’s provides a key role in physically incorporating Integrated Combat System’s Equipment onto our Royal Navy Submarine Fleet. This is a critical role in the delivery of the product to the customer and will allow you to liaise with high level stakeholders and develop a lasting career with BAE Systems.

We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria.

Why BAE Systems?

This is a place where you’ll be able to make a real difference. You’ll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you’ll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments.

Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks.

Closing Date: 14th October 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-JM2

#LI-Hybrid

Job Title: Lead Mechanical Engineer – Air Purification Systems

Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role.

Salary: Competitive

What you’ll be doing:

• Design of Air Purification and Atmosphere Monitoring systems, sub-systems and equipment for the next generation Royal Navy submarines

• Undertake functional design activities, modelling and analysis

• Produce design documentation, Verification & Validation evidence and safety justifications

• Support specification qualification and procurement of components, working collaboratively with suppliers

• Engaging with stakeholders across the cross-functional project team

• Driving engineering governance through peer reviews and design reviews

Your skills and experiences:

Essential:

• Experience in the design of gas scrubbing, filtration, and environmental control systems (e.g. CO₂ removal, O₂ generation, trace contaminant management, radiological hazards) – ideally in complex, safety-critical environments (e.g. maritime, aerospace, defence, nuclear, oil & gas and sub-sea)

• Proven capability in system lifecycle delivery – from concept through to commissioning

• Demonstrated leadership – either through technical direction, mentoring, or project ownership

• Chartered engineer or working towards professional accreditation

Desirable:

• Knowledge of platform-level constraints such as noise, shock, or survivability

• Previous experience integrating purification systems with submarine life-support, HVAC, and emergency protocols

Benefits:

As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts – you may also be eligible for an annual incentive.

The team:

As a Lead Mechanical Engineer – Air Purification Systems, you will play a pivotal role in the design and development of submarine Air Purification and Atmosphere Monitoring systems. This includes system-level design, technical leadership, supplier engagement, and the opportunity to steer design architecture across a major submarine programme. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria.

Why BAE Systems?

This is a place where you’ll be able to make a real difference. You’ll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you’ll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc.) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments.

Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks.

Closing Date: 31^st October 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

Job title: Principal Mechanical Engineer – PNED

Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this role

Salary: £45,628 – £57,500 dependent on experience

What you’ll be doing:

• Collaborate closely with the build organisation, providing engineering support to ensure the final product aligns with original design intent

• Demonstrate a strong understanding of key requirements and critical dimensions related to major structural components

• Lead the assessment and implementation of design changes impacting primary structural elements, whether driven by emergent issues, continuous improvement, or process updates

• Support, or where appropriate, serve as the engineering representative within test and authorisation groups

• Develop specialised knowledge of the unique build sequence of the Reactor Compartment Unit and deliver ongoing engineering support throughout construction

• Represent the engineering function during the planning and execution of major construction milestones within the Reactor Compartment Unit’s scope

• Investigate and present robust technical solutions to challenges encountered during the construction of the Naval Reactor Plant

• Provide well-reasoned technical recommendations to key stakeholders, including Rolls-Royce and the Ministry of Defence, to support or constructively challenge existing requirements

Your skills and experiences:

Essential:

• Degree-level qualification in Engineering, preferably with a focus on Mechanical or Structural disciplines

• Proficient in interpreting mechanical drawings, with a solid understanding of geometric dimensioning and tolerancing (GD&T)

• Familiarity with welding engineering principles and non-destructive examination (NDE) techniques

• Strong technical report writing skills, with experience in producing clear justifications for design changes

Desirable:

• Understanding of stress, fatigue, and thermal analysis principles in engineering applications

• Awareness of nuclear radiation shielding requirements and best practices

• Prior experience working within a nuclear plant environment

• Knowledge of the nuclear industry, including familiarity with regulatory bodies and compliance standards

Benefits:

As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts – you may also be eligible for an annual incentive.

The Platform Nuclear Engineering Department team:

As a Principal Mechanical Engineer – PNED, you will play a critical role in supporting the design, build, and test phases of the Naval Reactor Plant (NRP) across multiple programmes, ensuring alignments with the original design intent. This includes leading the resolution of complex technical issues encountered during construction and testing, with a focus on developing robust engineering solutions and maintaining the integrity of the supporting safety case.

You will provide expert guidance to internal teams including Engineering Delivery, Test & Commissioning, Operations, and Project Management. Additionally, you will represent the business in collaboration with key external stakeholders, including the Ministry of Defence (MoD) and Rolls-Royce Power, ensuring effective coordination across the wider enterprise. 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: 23^rd October 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

Job Title: Lead Mechanical Engineer – Air Purification Systems

Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role.

Salary: Competitive

What you’ll be doing:

• Design of Air Purification and Atmosphere Monitoring systems, sub-systems and equipment for the next generation Royal Navy submarines

• Undertake functional design activities, modelling and analysis

• Produce design documentation, Verification & Validation evidence and safety justifications

• Support specification qualification and procurement of components, working collaboratively with suppliers

• Engaging with stakeholders across the cross-functional project team

• Driving engineering governance through peer reviews and design reviews

Your skills and experiences:

Essential:

• Experience in the design of gas scrubbing, filtration, and environmental control systems (e.g. CO₂ removal, O₂ generation, trace contaminant management, radiological hazards) – ideally in complex, safety-critical environments (e.g. maritime, aerospace, defence, nuclear, oil & gas and sub-sea)

• Proven capability in system lifecycle delivery – from concept through to commissioning

• Demonstrated leadership – either through technical direction, mentoring, or project ownership

• Chartered engineer or working towards professional accreditation

Desirable:

• Knowledge of platform-level constraints such as noise, shock, or survivability

• Previous experience integrating purification systems with submarine life-support, HVAC, and emergency protocols

Benefits:

As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts – you may also be eligible for an annual incentive.

The team:

As a Lead Mechanical Engineer – Air Purification Systems, you will play a pivotal role in the design and development of submarine Air Purification and Atmosphere Monitoring systems. This includes system-level design, technical leadership, supplier engagement, and the opportunity to steer design architecture across a major submarine programme. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria.

Why BAE Systems?

This is a place where you’ll be able to make a real difference. You’ll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you’ll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc.) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments.

Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks.

Closing Date: 3rd October 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

Job Title: Lead Mechanical Engineer – Hydraulic Systems

Location: Weymouth, Filton, Frimley – 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

What you’ll be doing

• Reviewing combat design’s and providing Mechanical design feedback (Structural, Thermal & Hydraulic) in the Naval/Marine domain
• Taking ownership of specific Mechanical design issues and managing Integrated Combat Systems
• Liaising with internal and external stakeholder’s while managing updates and design inputs
• Production of CS Mechanical design interface information
• Performing Engineering calculations and generating associated test specifications and procedures
• Producing Engineering Drawings in FORAN/CADS5/Viso to BS 888

Your skills and experiences

Essential:

• Hydraulic / Pneumatic Systems Engineering experience
• Degree or HND qualified with experience
• Chartered or working towards Chartership

Desirable:

• Defence Standard knowledge/ Experience

Benefits

As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts – you may also be eligible for an annual incentive.

The Platform Physical Design Team:

Part of the specialist engineering services, the Platform Physical Design and Installation Service’s provides a key role in physically incorporating Integrated Combat System’s Equipment onto our Royal Navy Submarine Fleet. This is a critical role in the delivery of the product to the customer and will allow you to liaise with high level stakeholders and develop a lasting career with BAE Systems.

We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria.

Why BAE Systems?

This is a place where you’ll be able to make a real difference. You’ll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you’ll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc .) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments.

Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role , to allow for meaningful security vetting checks.

Closing Date: 14th October 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-JM2

#LI-Hybrid

Job title: Senior/Principal Platform Systems Mechanical Engineer

Location: Barrow-in-Furness. This position will require a full-time presence on-site

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

• Be proficient in CAD, MS Office and be comfortable with other IT applications

Benefits:

As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts – you may also be eligible for an annual incentive.

The Mechanical Platform Systems team:

Being part of a 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 opportunity career development. 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: 10^th October 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

Job title: Principal Mechanical Engineer – PNED

Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this role

Salary: £45,628 – £57,500 dependent on experience

What you’ll be doing:

• Collaborate closely with the build organisation, providing engineering support to ensure the final product aligns with original design intent

• Demonstrate a strong understanding of key requirements and critical dimensions related to major structural components

• Lead the assessment and implementation of design changes impacting primary structural elements, whether driven by emergent issues, continuous improvement, or process updates

• Support, or where appropriate, serve as the engineering representative within test and authorisation groups

• Develop specialised knowledge of the unique build sequence of the Reactor Compartment Unit and deliver ongoing engineering support throughout construction

• Represent the engineering function during the planning and execution of major construction milestones within the Reactor Compartment Unit’s scope

• Investigate and present robust technical solutions to challenges encountered during the construction of the Naval Reactor Plant

• Provide well-reasoned technical recommendations to key stakeholders, including Rolls-Royce and the Ministry of Defence, to support or constructively challenge existing requirements

Your skills and experiences:

Essential:

• Degree-level qualification in Engineering, preferably with a focus on Mechanical or Structural disciplines

• Proficient in interpreting mechanical drawings, with a solid understanding of geometric dimensioning and tolerancing (GD&T)

• Familiarity with welding engineering principles and non-destructive examination (NDE) techniques

• Strong technical report writing skills, with experience in producing clear justifications for design changes

Desirable:

• Understanding of stress, fatigue, and thermal analysis principles in engineering applications

• Awareness of nuclear radiation shielding requirements and best practices

• Prior experience working within a nuclear plant environment

• Knowledge of the nuclear industry, including familiarity with regulatory bodies and compliance standards

Benefits:

As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts – you may also be eligible for an annual incentive.

The Platform Nuclear Engineering Department team:

As a Principal Mechanical Engineer – PNED, you will play a critical role in supporting the design, build, and test phases of the Naval Reactor Plant (NRP) across multiple programmes, ensuring alignments with the original design intent. This includes leading the resolution of complex technical issues encountered during construction and testing, with a focus on developing robust engineering solutions and maintaining the integrity of the supporting safety case.

You will provide expert guidance to internal teams including Engineering Delivery, Test & Commissioning, Operations, and Project Management. Additionally, you will represent the business in collaboration with key external stakeholders, including the Ministry of Defence (MoD) and Rolls-Royce Power, ensuring effective coordination across the wider enterprise. 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: 23^rd October 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