Warrington, England, United Kingdom · Hybrid
Job Title: Principal Mechanical Engineer Location: Warrington, Cheshire Compensation: Competitive Salary + Benefits Role Type: Full time / Permanent Role ID: SF66879 Drive Innovation in Defence Nuclear Engineering At Cav…
Skills: Mechanical Engineering, Multidisciplinary Team Leadership, Technical Project Delivery, Engineering Mentorship, Technical Report Writing
Derby, England, United Kingdom · Hybrid
$42k–$55k/yr
Manufacturing Engineer – MDP Module Assembly Location: Derby, Manchester or Warrington (with regular travel to Factory 2050) About the role At Rolls‑Royce SMR, the Modularisation Development Programme (MDP) plays a criti…
Skills: Project Delivery, Risk Management, Supplier Coordination, Cross-functional Coordination, Manufacturing Strategy
Warrington, England, United Kingdom · Hybrid
At ABB, we help industries run leaner and cleaner—and every person here makes that happen. You’ll be empowered to lead, supported to grow, and proud of the impact we create together. Join us and help run what runs the wo…
Skills: Technical Support, Application Support, Motion Control, Servo Experience, Variable Speed Drive Systems
Warrington, England, United Kingdom · On-site
United Infrastructure is a dynamic and rapidly expanding business, focused on delivering critical infrastructure projects, across the utility and social infrastructure sectors. Our team of highly skilled and hardworking …
Skills: CAD 2D, AutoCAD, Site Design, Telecommunications Design, Microsoft Office
Warrington, England, United Kingdom · On-site
United Infrastructure is a dynamic and rapidly expanding business, focused on delivering critical infrastructure projects, across the utility and social infrastructure sectors. Our team of highly skilled and hardworking …
Skills: CAD 2D, AutoCAD, Telecommunications Design, Engineering Design, Microsoft Office
Derby, England, United Kingdom · Hybrid
$42k–$55k/yr
Manufacturing Engineer – MDP Module Assembly Location: Derby, Manchester or Warrington (with regular travel to Factory 2050) About the role At Rolls‑Royce SMR, the Modularisation Development Programme (MDP) plays a criti…
Skills: Project Delivery, Risk Management, Supplier Coordination, Cross-functional Coordination, Manufacturing Strategy
Derby, England, United Kingdom · Hybrid
$42k–$55k/yr
Manufacturing Engineer – MDP Module Assembly Location: Derby, Manchester or Warrington (with regular travel to Factory 2050) About the role At Rolls‑Royce SMR, the Modularisation Development Programme (MDP) plays a criti…
Skills: Project Delivery, Risk Management, Supplier Coordination, Cross-functional Coordination, Manufacturing Strategy
Warrington, England, United Kingdom · On-site
Company Description Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakehold…
Skills: Inventor, AutoCAD, Alpha Glovebox Design, Design For Assembly, Microsoft Office
Preston, England, United Kingdom · Hybrid
Job Title: Principal Mechanical Design Engineer Location: Warrington, Cheshire or Preston, Lancashire + Hybrid Working Arrangements Compensation: Competitive Salary + Benefits Role Type: Full time / Permanent Role ID: SF…
Skills: Mechanical Design, Bid Management, Technical Leadership, Project Delivery, Safety Case Development
South Gloucestershire, England, United Kingdom · Hybrid
Job Title: Senior Mechanical Engineer Location: Either Bristol or Warrington, Cheshire Compensation: Competitive Salary + Benefits Role Type: Full time / Permanent Role ID: SF66847 Shape the Future of UK Defence Infrastr…
Skills: Mechanical Engineering, Systems Integration, Technical Documentation, Project Lifecycle Management, Stakeholder Engagement
Warrington, England, United Kingdom · On-site
United Infrastructure is a dynamic and rapidly expanding business, focused on delivering critical infrastructure projects, across the utility and social infrastructure sectors. Our team of highly skilled and hardworking …
Skills: Cost Control, Contractual Administration, Tender Preparation, Subcontract Management, Financial Reporting
Derby, England, United Kingdom · Hybrid
$42k–$55k/yr
Role: Layout and Installation Assemblies Engineer - Site Specific Locations: Hybid working with one of the following closest locations as primary: Derby, Warrington or Manchester Our mission Our mission is to deliver cle…
Skills: Layout Design, Installation Assemblies, Modular Design, Systems Engineering, Plant Layout
Derby, England, United Kingdom · Hybrid
$60k–$79k/yr
Role: Manager – Site-Specific Layout & Installations Locations: Hybrid working with one of the following closest locations as primary: Derby, Warrington or Manchester Our mission Our mission is to deliver clean, affordab…
Skills: Layout Design, Installation Design, Systems Engineering, Requirements Management, Configuration Control
Warrington, England, United Kingdom · Hybrid
At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in s…
Skills: Mechanical Drawing Checking, BS EN 8888, Nuclear Containment Design, Radiological Shielding, Geometrical Product Specifications
Warrington, England, United Kingdom · On-site
United Infrastructure is a dynamic and rapidly expanding business, focused on delivering critical infrastructure projects, across the utility and social infrastructure sectors. Our team of highly skilled and hardworking …
Skills: Civil Engineering, Temporary Works Coordination, Project Management, Structural Works, CDM Regulations
Derby, England, United Kingdom · Hybrid
$60k–$79k/yr
Role: Manager – Site-Specific Layout & Installations Locations: Hybrid working with one of the following closest locations as primary: Derby, Warrington or Manchester Our mission Our mission is to deliver clean, affordab…
Skills: Layout Design, Installation Design, Systems Engineering, Requirements Management, Configuration Control
Derby, England, United Kingdom · Hybrid
$51k–$67k/yr
Role: Senior Layout and Installations Engineer – Site Specific Locations: Hybrid working with one of the following closest locations as primary: Derby, Warrington or Manchester Our mission Our mission is to deliver clean…
Skills: Layout Design, Systems Engineering, MEP Layout, Integration Design, Requirements Management
Warrington, England, United Kingdom · Hybrid
At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in s…
Skills: Mechanical Handling Equipment, High Integrity Building Cranes, Shield Door Design, Pipework Design, Tank and Vessel Specification
Derby, England, United Kingdom · Hybrid
$42k–$55k/yr
Role: Layout and Installation Assemblies Engineer - Site Specific Locations: Hybid working with one of the following closest locations as primary: Derby, Warrington or Manchester Our mission Our mission is to deliver cle…
Skills: Plant Layout, Modular Design, Systems Engineering, MEP Systems, Constructability
Derby, England, United Kingdom · Hybrid
$51k–$67k/yr
Role: Senior Layout and Installations Engineer – Site Specific Locations: Hybrid working with one of the following closest locations as primary: Derby, Warrington or Manchester Our mission Our mission is to deliver clean…
Skills: Layout Design, Systems Engineering, MEP Layout, Requirements Management, Risk Management
Warrington, England, United Kingdom • Hybrid
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Lead multidisciplinary engineering teams to deliver complex technical solutions for Defence Nuclear infrastructure. Oversee the production of engineering outputs and maintain high standards of safety, quality, and customer communication.
Requires an engineering degree and extensive experience leading technical teams and delivering complex projects. Must be able to achieve and maintain BPSS and SC security clearance.
At Cavendish Nuclear we’re working to create a safe and secure world, together, and if you join us, you can play your part as a Principal Mechanical Engineer at one of our key locations: Warrington (Cheshire).
As a Principal Mechanical Engineer, you’ll have a role that’s out of the ordinary. This role will contribute to a high-impact public sector Defence Nuclear infrastructure initiative focused on enhancing operational resilience and sustainability across critical systems. The project involves complex mechanical systems integration, requiring innovative engineering solutions within a multidisciplinary team.
Day-to-day, you’ll lead multidisciplinary engineering teams, oversee the delivery of complex technical solutions, and act as a key point of contact for customers, ensuring high standards of safety, quality, and performance while mentoring others and driving continuous improvement across projects.
This role is full time, 37 hours per week provides hybrid working arrangements with 3 days in the office/onsite, at our Warrington (Cheshire) site.
Essential experience of the Principal Mechanical Engineer:
The successful candidate must be able to achieve and maintain Standard (BPSS) / Security Check (SC) security clearance for this role. Further details are available at United Kingdom Security Vetting: clearance levels - GOV.UK (www.gov.uk)
We’re Cavendish Nuclear — a team of c5,000 specialists and a core part of Babcock International Group.
Here, you’ll be part of something bigger. Across clean energy, defence, and civil decommissioning, your work will contribute to projects that are critical to energy security and national protection. Together, we’re shaping a future that lasts — not only through the impact we make, but through meaningful careers that respect your work-life balance.
Join us and discover how far we can go, together.
We are a disability confident committed employer. If you have a disability or need any reasonable adjustments during the application and selection stages, please email [email protected] with the subject header ‘Reasonable adjustments requirement’. We’re committed to building an inclusive culture where everyone’s free to thrive. We are happy to talk about flexible working – please ask about alternative patterns of work at interview.
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Babcock is a FTSE 100 defence company, creating a safe and secure world, together.
Babcock is a FTSE 100 defence company operating in our focus countries of the UK, Australasia, Canada, France and South Africa, with exports to additional markets. Our Purpose, to create a safe and secure world, together, defines our strategy. We support and enhance our customers’ defence and security capabilities and critical assets through a range of product and service solutions. We meet our customers’ requirements of value for money, increased availability, modernisation and flexibility. These projects take all different kinds of professionals, from chartered engineers and project managers, to naval architects, data analysts and everything in between. To bring through the next generation of engineering and business experts, we offer apprenticeships and roles for students, graduates and fully-qualified professionals. There’s never been a better time to join us. Whether you’re looking for a new business management project or engineering role, join Babcock and grow with us. Babcock is a Disability Confident, Committed Employer
Offices: 33 Wigmore Street, London, W1U 1QX, GB
There are currently 168 open energy positions in Warrington, United Kingdom listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Rolls-Royce SMR, Assystem, Amentum, PiLON Ltd, AECOM, among others. Browse the listings above to see every active employer.
Yes — 140 of the 168 open energy positions offer remote or hybrid work (1 remote, 139 hybrid).
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.
