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: Principal Engineer - Human Factors Location: UK Wide (Hybrid) Salary: Negotiable (Commensurate with skills and experience) What you'll be doing: Assessing risks of human error and providing Human Factors advice Performing task analysis Working with Process authors to improve procedures to reduce risk of unintended outcomes Representing Human Factors at design technical reviews Conducting design substantiation reviews Supporting Safety Case delivery Leading Human Factors programmes of work Your skills and experiences: Essential Degree in Human Factors/Psychology or equivalent experience Demonstrable Human Factors experience Experience in delivering Human Factors into safety case in a nuclear setting Previous experience of stakeholder management Proven experience in coaching and mentor others Experience in writing assessment reports and safety cases Desirable: Chartered Ergonomist status with CIEHF (or...

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...

Job Title: Principal Engineer (External Communications Integration) Location: Barrow-in-Furness. On-Site Salary: Negotiable dependant on experience What you'll be doing: Maturing the external communications sub-system on the submarine from build to test Undertaking test and trial events on the submarine Working with subcontractors to come to site to undertake test events. (You will be responsible for managing the visit - submitting security forms, health and safety briefs, on the boat etc .) Defect investigation or non-conformities. (installation or testing) Investigate to a resolution Providing specialist knowledge and subject matter expertise to develop the functional design of external communications systems Being able to define the systems architecture, components, interfaces and data to enable the development and production of the component sub systems Understanding the contractual and performance requirements for external communications systems,...

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-in-Furness. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this role Salary: Competitive What you'll be doing: Leading the design and delivery of communications and audio systems for naval vessels, including defining system requirements and design standards to develop effective technical solutions Developing comprehensive technical documentation, including specifications, user manuals, and design calculations, to ensure alignment with performance requirements Defining testing protocols and providing on-site support for dockside installation and system commissioning activities Evaluating test and qualification results for compliance with technical requirements and presenting finding to both internal stakeholders and external clients Conducting technical development studies to verify and validate that system designs meet...

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 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 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/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 Systems Engineer (Platform Integration) Location: Barrow-in-Furness - Hybrid - (dependent on business needs) Salary: Negotiable (Commensurate with skills and experience) What you'll be doing: Representing the Combat Systems team while collaborating with the platform teams in Barrow Design and compilation of technical specifications to deliver capabilities in supporting the IV&V strategy Collaborating with the Combat System domains engineering teams to ensure their systems can be integrated into the platform Planning the physical integration and test of systems containing electronic, mechanical and software sub-systems, understanding the potential impact on the whole boat and interfacing systems Taking accountability for technical work packages and Combat Systems (CS) equipment Leading Platform Integration meetings bringing together key stakeholders to understand technical and programmatic risks and developing action plans to...

Job title - Temporary Works Engineer Duration - Permanent Start date - Looking for someone to start in April 2026 (subject to being medically and security cleared) Shift patterns - Mon-Fri full time (hybrid - 3 / 4 days a week in office) Pay rate - 60k - 70k + car allowance + benefits DOE Location - Whitehaven Purpose of the Role Manage temporary works procedures Design and / or design checking Other design and temporary works tasks Role Accountabilities Detail design of temporary works or simple permanent works Management of internal and external designers Management of temporary works procedures Independent technical review, HAZARD and Risk Review Implement necessary Sellafield Ltd procedures Liaison with Principal Designer and Designers Additional responsibilities Learning from Experience, Safety in Design and best practice Manage change control procedures Internal and external progress reporting Participation in Temporary Works Forum and other...

Job Title: Senior Engineer - Project 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: Circa £48,000 What you'll be doing : Reporting to the Principal Engineer, you'll support the delivery of projects by providing dedicated embedded engineering expertise , ensuring alignment with governance standards and compliance with the BAE Lifecycle Management Framework Support and compile engineering documentation to support requirements capture and design maturation from creation and implementation through validation. Capture iterative design changes in accordance with the requirement scope, ensuring revisions and configurations are controlled in accordance with company processes Deliver all documentation in a captured, configured, and controlled manner in accordance with the company Lifecycle Framework (LCM or RIBA) Support 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...

We are March the UKs leading provider of critical engineering services. Our expertise as a multi-disciplinary engineering partner across infrastructure, process and digital services has led to long term partnerships with leading organisations in everything from food and drink and utilities to high-security industries such as defence, aerospace and nuclear. We are now looking for an experienced Senior Electrical Engineer to join our team at Sellafield, Seascale, Cumbria. As the Senior Electrical Engineer, you will be reporting to the Electrical Project Manager and assisting them with procurement and delivery of the Electrical Packages, coordinating with the client, contractors, suppliers and other stakeholders to ensure successful delivery. The position will be full time and site based as part of the March delivery team. Key Responsibilities: Attending site team meetings and workshops as required, implementing Compensation Events and producing early warnings....

We are March the UKs leading provider of critical engineering services. Our expertise as a multi-disciplinary engineering partner across infrastructure, process and digital services has led to long term partnerships with leading organisations in everything from food and drink and utilities to high-security industries such as defence, aerospace and nuclear. We are now looking for an experienced Mechanical Project Manager to join March as part of the delivery team on the SCP at Sellafield and other projects as they mature. This position will eventually progress to take over from the Principal Project Manager. As the Mechanical Project Manager, you will have a responsibility to assist the Principal project manager and senior engineer in the procurement and delivery of the Mechanical Packages, coordinating with the client, contractors, suppliers and other stakeholders to ensure successful delivery. The position will be full time and mostly site based as part of the March...