Job Title: Senior/Principal Platform Systems Mechanical Engineer Job Location: Barrow-in-Furness, Onsite This position requires full-time on-site presence. Please speak to your recruiter for further details. 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. What you will be doing: In this role, you will support the development and delivery of mechanical platform systems, ensuring robust design evidence is generated to support safe and effective solutions. You will contribute to testing and commissioning activities, support issue resolution, and work closely with engineering teams to maintain...

Job Title: Principal Engineer - Systems Engineering (Requirements & Acceptance) Location: Barrow-in-Furness - (Hybrid - 2 days on site per fortnight) - (dependent on business needs) Salary: Up to £60,000 - (Commensurate with skills and experience) What you'll be doing: Generate and assure consistency within the requirement set for 12 major C&I systems including Distributed Control Systems, Control Console and Vehicle Control Systems Support the wider C&I design for several C&I sub-systems for Secondary Propulsion, Platform Mechanical and Platform Electrical Manage various requirements stakeholders to provide consistency across the Centralised C&I team Support the development of a functional design for the systems within scope for Centralised C&I Assess the design against compliance to its requirements, ensuring that the design risk is mitigated as far as reasonably practicable Provide guidance and instruction on the engineering...

Job Title: Principal Engineer (External Communications Integration) Location: Barrow-in-Furness, Onsite We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Negotiable dependant on experience 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: You'll mature the external communications sub-system on the submarine from build to test. You'll undertake test and trial events on the...

Job Title: Principal Operations Engineer - Machine Safety 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: from £42,215 - depending on skills and experience What you'll be doing: Providing technical expertise , facilitating and recording the completion of PUWER (Provision Use Work Equipment Regulations) assessments on workshop equipment, Mobile plant (FLT's, MWEPs, Pallet Trucks, etc .), all types of cranes and electric hoists, roller shutter doors, cantilever gates and barriers, radiological, robotic, bespoke development work equipment, etc Possess sound working knowledge of all Health and Safety regulations and relevant engineering standards and machinery directive Providing timely and consistent PUWER information, advice and governance to support department Managers across site to support the safe, legal, and compliant operation...

Job Title: Principal Signatures Engineer (Non-Acoustics) Location: Barrow-in-Furness (Onsite). We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role. Salary: circa £50,000 depending on skills and experience What you'll be doing Lead the development of the Stealth Engineering Above Water Signatures capability Collaborating with cross-functional teams to design low-signature equipment and systems Helping define technical requirements, test methods, and approval criteria Reviewing design documents to confirm that above water signature requirements are met Leading modelling efforts for radar, infrared, visual, and RF signatures using custom and commercial tools Developing testing methodologies to confirm signature performance Managing research with internal teams and university partners Improving stealth features on in-service submarines Your skills and...

Job Title: Lead Mechanical Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: As a Lead Principal Engineer within the SSNA Platform Mechanical Integrated Delivery Team (IDT), you will play a key leadership role in delivering engineering scope across a complex and fast-paced submarine programme. You'll take ownership of multiple systems, provide technical assurance, and collaborate across disciplines to drive delivery forward. Leading the delivery of assigned engineering scope, ensuring quality and timely outputs across design, integration, and qualification Overseeing technical ownership of several mechanical systems, ensuring compliance with system requirements and effective collaboration across interface areas Producing engineering artifacts, including documentation, calculations and...

Job Title: Principal Engineer - Nuclear Substantiation (Site) 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: £60,000 + depending on experience What you'll be doing: Authoring and managing nuclear site assets' design substantiation documentation supporting the site nuclear safety case Reviewing analyses , assessments, and calculations supporting nuclear design substantiation Supporting periodic review of safety Taking ownership of deliverables, and demonstrating high levels of autonomy and leadership Supporting the implementation of design substantiation requirements Working closely with a broad range of stakeholders including Site Safety Case, Human Factors, and Engineering Authority Teams Support in the development of other Nuclear Substantiation team members Collaborating with the wider business on site assets nuclear...

Job Title: Principal Engineer - Communications Location: Barrow, Hybrid 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 will be doing: In this role, you will lead the design and delivery of communications and audio systems for naval vessels, defining system requirements and engineering standards to develop effective solutions...

Job Title: Principal Safety Engineer - Safety & Environmental Engineering 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: Provide technical leadership as a subject matter expert in safety engineering Mentor and develop engineers, guiding safety analysis and influencing design decisions Analyse and influence nuclear submarine design using safety engineering techniques, focussing on major hazards (fires, explosions including DSEAR, steam release) Apply engineering judgement to justify design safety and compliance Interface with regulators, clients within the MOD and internal stakeholders Develop and review safety case documentation to substantiate design safety Your skills and experiences: Essential: Degree qualified in a relevant STEM discipline or equivalent experience...

Job Title: Principal Structural Engineer Location: Barrow-in-Furness - we offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Circa £60,000 What you'll be doing: Analysis and Design of complex steel structures utilising Eurocodes, British Standards and BAE standards, to support submarine build You will utilise your knowledge of specific regulations & requirements beyond that used within BAE Systems i.e., LOLER, codes of compliance, weld specifications, geometric tolerance Competent in computer based analytical techniques including finite element analysis , CAD modelling and engineering schematics (Abaqus, S-Frame) Supporting the manufacturing, assembly, lifting, handling, and installation processes of Submarine Structures, Modules and Components Supporting towards production of concept drawings, layouts, and other technical outputs consistent with contractual...

Job Title: Principal/Senior Engineer - Structural (Shock & Dynamics) 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: Up to £57,500 What you'll be doing: Lead the development of the functional requirements and supporting V&V evidence for secondary structures to support design justification documentation set Oversee the spatial design and drawing outputs for secondary structures in accordance with process instructions and standard design guidance Follow internal procedures and develop evidence of compliance through written calculations and reports Undertake structural calculations and (or) peer review checking and approval activities Lead and support the identification and rapid closure of issues emerging from all product lifecycle stages Ensure the appropriate engineering guidance is implemented to ensure robust and...

Job Title: Principal Mechanical Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £55,000 What you'll be doing: Lead the end-to-end development of complex fluid systems, shaping designs that meet demanding performance and environmental requirements Create and review high-value engineering deliverables - for schematics and P&IDs to calculations, system descriptions, and 3D models Drive advanced system analyses , including flow, pressure, thermal, and transient modelling to validate performance under challenging conditions Select and assess critical equipment (pumps, compressors, valves, heat exchangers, filters, tanks), ensuring it meet tough submarine operating environments Champion technology integrity by reviewing supplier documentation, ensuring full compliance with shock, vibration, atmosphere, temperature,...

Job Title: Principal HVAC Design Engineer Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Circa £58,000 What you'll be doing: Lead the end-to-end development of cutting-edge HVAC systems, ensuring they meet demanding performance, safety, and environmental standards Create and review high-impact engineering artefacts - from specifications and P&IDs to calculations and 3D models Drive advanced thermal, airflow, and pressure analyses toto validate system performance in challenging conditions Transform complex requirements into robust, innovative, and verifiable design solutions that set the benchmark for excellence Guide and influence engineers, suppliers, and design partners, shaping best-in-class HVAC integration across the platform Enhance design standards and evaluate specialist equipment, contributing to reviews, hazard assessments,...

Job Title: Principal/Senior Engineer - Structural (Shock & Dynamics) 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: Up to £57,500 What you'll be doing: Lead the development of the functional requirements and supporting V&V evidence for secondary structures to support design justification documentation set Oversee the spatial design and drawing outputs for secondary structures in accordance with process instructions and standard design guidance Follow internal procedures and develop evidence of compliance through written calculations and reports Undertake structural calculations and (or) peer review checking and approval activities Lead and support the identification and rapid closure of issues emerging from all product lifecycle stages Ensure the appropriate engineering guidance is implemented to ensure robust and...

Job Title: Principal Structural Engineer Location: Barrow-in-Furness - we offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Circa £60,000 What you'll be doing: Analysis and Design of complex steel structures utilising Eurocodes, British Standards and BAE standards, to support submarine build You will utilise your knowledge of specific regulations & requirements beyond that used within BAE Systems i.e., LOLER, codes of compliance, weld specifications, geometric tolerance Competent in computer based analytical techniques including finite element analysis , CAD modelling and engineering schematics (Abaqus, S-Frame) Supporting the manufacturing, assembly, lifting, handling, and installation processes of Submarine Structures, Modules and Components Supporting towards production of concept drawings, layouts, and other technical outputs consistent with contractual...

Job Title: Principal Engineer - Electrical Engineering (Power) Location: Barrow-In-Furness (Hybrid). - (Barrow - 2 days a fortnight onsite; 1 day a week onsite at Filton) depending on business needs Salary: Up to £57,500 (Commensurate with skills and experience) What you'll be doing: Develop design solutions to agreed time, cost and quality in accordance with project or business milestones Develop and manage requirements and acceptance criteria specific to a system or product and/or across a system of systems, platform or programme Understand the contractual and performance requirements for various systems, and support the definition and associated acceptance criteria and events through design, build, integration, installation and commissioning activities Produce documentation required to support the design review process, including diagrams; technical specifications; supporting calculations; design evidence and justifications Provide technical support...