Why Greencore? Following the combination with Bakkavor in January 2026, we're one of the UK's leading creators of convenience food, driven by a simple purpose: to make every day taste better. As a vibrant and fast-moving business, we're proud to employ over 28,000 talented colleagues across 36 manufacturing sites and 21 distribution depots in the UK and the US. Together, we bring delicious food to life. Our products cover every meal occasion from breakfast through to dinner and dessert, with lunch and snacking in between. In FY25, our shared passion helped us achieve combined revenues of approximately 4bn. Our extensive direct to store (DTS) network, with 17 depots across the UK, allows us to deliver fresh and frozen food both our own and from trusted partners to thousands of stores every day, ensuring consumers enjoy the very best, whenever and wherever they shop. What you'll be doing Develop user requirement specifications to ensure the clear and common understanding...

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: 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 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 - 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 - 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: 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: 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: Senior Radiation Physicist Location: Barrow-in-Furness - Hybrid 3 days minimum onsite. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow, shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space, there's no limit to where a career at BAE Systems could take you. What you'll be doing: You will conduct radiological safety assessments and evaluate radiation damage risks to onboard electronics. Your role involves developing radiation detection systems...

Job Title: Senior Radiation Physicist Location: Barrow-in-Furness - Hybrid 3 days minimum onsite. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow, shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space, there's no limit to where a career at BAE Systems could take you. What you'll be doing: You will conduct radiological safety assessments and evaluate radiation damage risks to onboard electronics. Your role involves developing radiation detection systems...

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: Principal Radiation Physicist Location: Barrow-in-Furness - Hybrid 3 days minimum onsite. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Competitive Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow, shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space, there's no limit to where a career at BAE Systems could take you. What you'll be doing: You will supervise and conduct assessment and experiments to support system qualification, while contributing to ongoing design optimisation. Your role includes...

Job Title: Senior Support Engineer (Training Services) 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: Developing the end-to-end training material and user guides aligned to the process documentation in each area or function ensuring that the training is optimised and aligned with programme requirements Develop training assets through design and development, embedding rigorously derived learning and assessment objectives Working with the vendor to understand the 'to be' delivered capability Understanding current BAE working practices Delivering training curricula as required Your skills and experiences: Essential: Good digital and / or creative skills and knowledge Ability to understand complex operations and translate them into an understandable training process Applied...

Job Title: Product Safety Team Leader Location: Warton, Hybrid - 3 days a week onsite We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: £56,766+ depending on experience Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow, shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space, there's no limit to where a career at BAE Systems could take you. What you'll be doing: In this role, the successful candidate will support the development and maintenance of safety capability within FalconWorks, including the Safety Management...

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: Senior Commercial Officer Location: Barrow-in-Furness. 3 days per week onsite Salary: £42,215+ depending on skills and experience What you'll be doing : Supporting the internal impact assessment and contractual basis of claims Supporting/leading negotiation of proposals and claims with customers, ensuring this results in an acceptable agreement that aligns with business objectives Coordination and control of claims and proposals. Drafting and completion of claims and proposals Monitoring and maintenance of contractual data and artefacts, including liaison with wider functions to improve Your skills and experiences: Essential: Drafting of contracts and customer negotiation Ability to work unsupervised, manage own workload and prioritise Ability to understand commercial issues Benefits: As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health,...

Job Title: Consultant Engineer - Metrology 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: £57000+, 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: As the subject matter expert for Radiation Measurement, you will advise on test and measurement equipment and approve radiological calibration procedures, including...

Job Title: Operations Leader - (Steelwork/Welding/Caulking) Location: Barrow-in-Furness (On-site) Salary: £47,271+ depending on skills and experience What you'll be doing : Establishing a Network amongst the Engineering & Build Functions Review, influence, challenge and endorse the SSNA Build Strategy towards an 18-month drumbeat Influencing/Reviewing & Endorsing the SSNA Design Working to Engineering Documentation such as TDI's (Technical Department Instructions) Reviewing Workmanship Standards and Manufacturing Instructions Attending MAIT/MAT Meetings, DSUMs Engaging with Wider Stakeholders to mitigate any Steelwork/Welding/Caulking concerns striving towards workable right first time arrangements/solutions Identifying any jigs, rigs, fixtures and tooling requirements Instill Quality and Design for Safety practices Your skills and experiences: Essential: Practical experience in Steelwork/Welding or Caulking (trade background...

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...