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40 principal systems engineer jobs found

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BAE Systems
23 Feb, 2026
Principal Systems Engineer
BAE Systems Great Britain, United Kingdom
Job Title: Principal Systems Engineer Location: Isle of Wight – Cowes, Portsmouth Broad Oak or Chelmsford – Great Baddow 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 £75,900 commensurate with skills and experience. Part time & accruing hours available. Part time & accruing hours available’ Please let us know if you would like to discuss these options. Put yourself into a dynamic Principal Systems Engineering role at the forefront of real world demands in the defence industry. Alongside ensuring operational excellence for our existing products, there will be the opportunity to develop next generation radar products to counter emerging threats and contribute to our strategy for new technology. Your new day-to-day will be exciting and diverse by applying the principles of Systems Engineering across the entire engineering development lifecycle as you join in...
BAE Systems
10 Feb, 2026
Principal Systems Engineer
BAE Systems Frimley, Camberley, UK
Job Title: Principal Systems Engineer Location: Frimley. 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 What you’ll be doing: Provide oversight and technical ownership of CCS design, leading design decisions and supporting the Engineering Manager in delivering in-service programmes Ensure technical leadership by controlling project scope, managing design changes, and engaging stakeholders and suppliers to identify risks early Lead programme-level design reviews, coordinate stakeholders, manage design baselines and voids, and produce Certificates of Design while ensuring design governance Review and influence technical requirements and architectural design to ensure system integration, covering sub-systems and specialist domains for subcontractor design, development, and qualification Provide specialist...
BAE Systems
26 Feb, 2026
Principal Engineer – Systems Engineering
BAE Systems Barrow-in-Furness, UK
Job Title: Principal Systems Engineer Location: Barrow-In-Furness, Filton, Frimley, BroadOak, Faslane. 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 What you’ll be doing: Provide subject matter expertise and advice to internal and external stakeholders on Systems Engineering and Model Based Systems Engineering Work in collaboration with other systems engineers and domain experts to establish and agree the functional capabilities of your assigned systems of interest Communicate conceptual architectural designs to the appropriate technical authorities to obtain agreement and acceptance Liaise with internal and external stakeholders such as specialist engineer teams, MoD and industrial partners to communicate and clarify the proposed solution Your skills and experiences: Essential: STEM related degree or...
BAE Systems
04 Mar, 2026
Principal Engineer – Systems Engineering (Requirements & Acceptance)
BAE Systems Barrow-in-Furness, UK
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...
BAE Systems
05 Mar, 2026
Senior/Principal Platform Systems Mechanical Engineer
BAE Systems Barrow-in-Furness, UK
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...
BAE Systems
25 Feb, 2026
Principal Engineer – Electrical Systems
BAE Systems Glasgow, UK
Job Title: Principal Engineer – Electrical Systems Salary: up to £65500 depending on skills and experience Location: Scotstoun – We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role What you’ll be doing: Lead, mentor, and motivate a small team to achieve high performance. Participate fully in developing, maintaining, and modifying Electrical Systems Act as main point of contact with customers and/or suppliers in assigned areas on engineering matters, to resolve relatively complex problems and issues and to maintain awareness in both parties of priorities and objectives . Prepare specifications, develop designs in line with specifications and all quality and technical standards, and carry out design appraisals in assigned areas to ensure all standards are maintained. Make engineering decisions within own sphere of responsibility and delegated authority. Your...
BAE Systems
09 Feb, 2026
Principal/Senior Engineer Systems Process, Governance & Maturity
BAE Systems Great Britain, United Kingdom
Job Title: Principal / Senior Engineer (Systems Process, Governance & Maturity) Location: Barrow-in-Furness or Filton. 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 £60,000 depending on experience What you’ll be doing: Providing specialist knowledge and subject matter expertise in the development of engineering Processes. Identify the need for, develop, communicate, and maintain processes supporting the entire engineering lifecycle Understanding and articulating the impact of their processes on other areas of the functional and wider business. Along with understanding and articulating the role of Governance within and beyond Engineering Conducting independent Assurance activities to ensure design proving evidence is comprehensive, captured within the correct tools and documentation and has been endorsed by the appropriate level of authority...
BAE Systems
06 Mar, 2026
Principal Engineer – Project Engineering
BAE Systems Barrow-in-Furness, UK
Job Title: Principal 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 £54,000 What you’ll be doing: Reporting to the Engineering Manager , Lead & provide dedicated embedded engineering support to projects to aid in their delivery, whilst maintaining assurance, governance & compliance to BAE Lifecycle Management Framework (LCM) and RIBA Leading & Produce engineering documentation to support requirements capture, design & maturation, from creation, implementation through to validation Capturing iterative design change in accordance with requirement scope ensuring revisions and configurations are controlled in accordance with company processes Delivering all documentation in a captured, configured and controlled manor in accordance with company Lifecycle Framework (LCM and...
BAE Systems
05 Mar, 2026
Principal Engineer – Safety & Environmental Engineering (Control Damage Hazards)
BAE Systems Barrow-in-Furness, UK
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...
BAE Systems
27 Feb, 2026
Principal Engineer – Safety Engineering (Safety Requirements)
BAE Systems Weymouth, UK
Job Title: Principal Engineer – Safety Engineering (Safety Requirements) Location: Weymouth – 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 depending on experience What you’ll be doing: Managing all the safety requirements that filter down from whole boat into combat systems – safety requirements flow down and recording in DOORS Managing Requirements Decomposition (DSRs / 4SFRs / 5SFRs) once the Safety Team have completed their Analysis Delivering reports into Senior Engineering Manager for safety requirements process Liaising with Subsystems, Safety Team, and Suppliers with regards to Safety Requirements Providing the Safety Team/Subsystems with specialist support in assisting in the carrying out of a Gap Analysis between Formal Safety Requirements and assumptive Safety Requirements placed on suppliers by the Sub-systems teams...
BAE Systems
10 Feb, 2026
Principal Engineer – Support Engineering
BAE Systems Great Britain, United Kingdom
Job Title: Principal Engineer – Support Engineering Location:  Barrow-in-Furness, Filton, Brough OR Coventry. 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 What you’ll be doing: Assist the Senior Engineering Manager in delivering effective ILS outputs for the Strategic Weapon System Support (SWSS) solution Provide expert support knowledge in responding to engineering queries from the MOD or Submarine Enterprise partners about the design, safety, maintenance, and operation of equipment and systems on in-service submarines Offer expert advice on equipment in line with current governance processes, in response to engineering queries from the MOD Design Authority Deliver support to the appropriate Engineering and Support Managers in the preparation of briefs and reports for both internal Provide technical support for...
BAE Systems
27 Jan, 2026
Principal Engineer – Electrical Engineering (Power)
BAE Systems Barrow-in-Furness, UK
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...
BAE Systems
16 Dec, 2025
Principal Engineer – Mechanical Engineering
BAE Systems Barrow-in-Furness, UK
Job Title: Principal Engineer – Mechanical 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: £47,241 + depending on experience What you’ll be doing: Leading the design of a mechanical system(s), sub-systems and equipment for the next generation Royal Navy submarines Undertaking functional design activities, calculations and analysis Producing design documentation, Verification & Validation evidence and safety justifications Specifying major equipment and support to procurement, qualification and acceptance activities, working collaboratively with suppliers Providing specialist knowledge and subject matter expertise support the installation, integration and commissioning activities associated with the system and equipment Engaging with stakeholders across the cross-functional project team Mentoring junior...
Just Eat Takeaway.com
09 Mar, 2026
Permanent
Principal Engineer, Data Platforms
Just Eat Takeaway.com London, UK
Principal Engineer, Data Platforms Ready for a challenge? Then Just Eat might be the place for you. We're a leading global online delivery platform, and our vision is to empower everyday convenience. Whether it's a Friday-night feast, a post-gym poke bowl, or grabbing some groceries, our tech platform connects tens of millions of customers with hundreds of thousands of restaurant, grocery and convenience partners across the globe. About this role We are seeking a highly accomplished and visionary Principal Engineer to join our Data Platforms leadership team. You will serve as the top technical authority, reporting directly to the Director of Engineering, and closely pairing with the Head of Engineering. This role defines the technical strategy and architecture that enables our organisation of 50+ engineers to build and operate robust, scalable, and high-performance data systems. We value your ability to lead on strategy, deliver technical excellence, and care for the continuous...
BAE Systems
07 Mar, 2026
Senior Stealth Engineer (NAVED) (Computation Fluid Dynamics)
BAE Systems Barrow-in-Furness, UK
Job Title: Senior Stealth Engineer – Computation Fluid 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: Negotiable dependant on experience What you’ll be doing Support the Principal Engineer – Numerical Modelling with the development of the Stealth Engineering CFD capability Running and interpreting CFD simulations to assess fluid dynamics and their impact on acoustic and non-acoustic signatures Supporting concept development, design iterations, and verification activities using commercial CFD tools Preparing technical reports and presenting findings to internal teams and stakeholders Working closely with engineers from other disciplines to integrate CFD insights into whole-platform solutions Assisting in the development of testing strategies and experimental validation where appropriate Your skills and...
BAE Systems
05 Mar, 2026
Principal Engineer – Product Safety
BAE Systems Filton, Bristol, UK
Job Title: Principal Engineer – Product Safety Location: Barrow-in-Furness, Filton or Broad Oak – we offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role. Salary: Negotiable, depending on experience What you’ll be doing: Develop, implement and maintain the Project Safety Management System within a Systems Engineering framework Produce and manage Project Safety Management Plans & Justification Plans Lead Whole Boat Product Safety hazard and risk identification, management and assessment activities, including modern analysis techniques such as STAMP & STPA Influence the construction and delivery of the Project Safety Case including Safety Case reports throughout the projects lifecycle Complete peer reviews, checking, verification and assurance tasks to demonstrate the adequacy and robustness of the Safety Case and supporting documentation Oversee and...
BAE Systems
05 Mar, 2026
Principal Process Safety Engineer
BAE Systems Great Britain, United Kingdom
Job Title: Principal Process Safety 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: £47,241 + depending on experience What you’ll be doing: Completing DSEAR risk assessments and compliance activities Mentoring and developing junior engineers Reviewing and producing explosion safety strategies Peer reviewing work Risk Analysis Developing and producing processes and policy documentation for the site Your skills and experiences: Essential: Experience of working in an explosion safety engineering environment and applying various methods of hazard analysis DSEAR risk assessment production including hazard identification and analysis (preferably from a high hazard industry) A thorough understanding of Hazardous Area Classification (HAC) and Proven track record in implementing business processes...
BAE Systems
05 Mar, 2026
Principal Product Safety Engineer
BAE Systems Great Britain, United Kingdom
Job Title: Principal Product Safety Engineer Location: Frimley, Weymouth, Bristol, Portsmouth, Barrow-in-Furness, Devonport, Plymouth or Brough, dependant on role and your personal circumstances. We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role Salary: Negotiable, depending on experience What you’ll be doing: Providing advice on product safety matters to project and engineering managers delivering the programmes and ensuring the safety considerations (DEF STAN 0055/0056) are correctly considered and implemented Engaging with third parties, to review and gather supporting safety case evidence Developing safety arguments, both physical and functional, using appropriate safety analysis methods e.g. (FHA/STPA/FMEA/FTA) producing and updating safety case and safety management documentation using appropriate regulations and standards Line managing other safety...
BAE Systems
04 Mar, 2026
Principal Operations Engineer
BAE Systems Barrow-in-Furness, UK
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...
BAE Systems
04 Mar, 2026
Senior Engineer – Combat Systems Platform Integration
BAE Systems Glasgow, UK
Job Title: Senior Combat Systems Engineer Salary: up to £49,100 + depending on skills and experience Location: Scotstoun – We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role What you’ll be doing: Undertake the physical integration of RCD Combat System (CS) Sub-Systems, liaising with other CS Technical Leads , and the RCD CS Technical Authority team to ensure coherency across the CS, whilst considering the incorporation of whole ship and system requirements. Monitor and maintain the physical and transverse suite of information for RCD CS Sub-Systems within the appropriate Naval Ships toolsets. Provide technical input into the Detailed Design team (Stage 2) to ensure that CS compartment layouts are in line with customer endorsed notional arrangements to maintain Compartment Plan Approval (CPA). Ensure that design rules for the physical integration of CS Sub-Systems...
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