Warrington, England, United Kingdom · Hybrid
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: Civil Engineering, Structural Engineering, Nuclear Engineering, Project Leadership, Design Review
Basingstoke, England, United Kingdom · Hybrid
Shape Strategy. Drive Growth. Lead the Future of Networking & Security. This is an opportunity to take ownership of a high-profile business unit within TD SYNNEX, leading strategy, profitability, and growth across our Ne…
Skills: P&L management, Strategic planning, Commercial negotiation, Vendor management, Business development
City of Leicester, England, United Kingdom · Hybrid
Job Title: Senior Electrical, Control and Instrumentation Engineer Location: Flexible, UK + Hybrid Working Arrangement Compensation: Competitive Salary + Benefits Role Type: Full time / Permanent Role ID: SF57033 Lead th…
Skills: Electrical engineering, Control systems, Instrumentation, Nuclear safety standards, IEC 61508
City of Leicester, England, United Kingdom · Hybrid
Job Title: Electrical, Control and Instrumentation Engineer Location: Flexible, UK + Hybrid Working Arrangement Compensation: Attractive Salary + Benefits Role Type: Full time / Permanent Role ID: SF68278 Shape the Futur…
Skills: Electrical engineering, Control systems, Instrumentation, Radiometric characterisation, Alarm systems
Preston, England, United Kingdom · Hybrid
Job Title: Senior Electrical, Control and Instrumentation Designer Location: Warrington, Cheshire or Preston, Lancashire + Hybrid Working Arrangement Compensation: Competitive + Benefits Role Type: Full time / Permanent …
Skills: Electrical design, Control systems, Instrumentation design, CAD tools, General engineering drawing practice
Aldford, England, United Kingdom · Hybrid
Why Join Us WorkNest’s 800+ colleagues support over 50,000 organisations worldwide, helping them manage risk, improve performance, and protect what matters most. Combining smart technology with expert advice across Emplo…
Skills: Documentation production, Health and safety legislation, Risk assessments, Policy drafting, Microsoft Office
Aldford, England, United Kingdom · Hybrid
Why Join Us WorkNest’s 800+ colleagues support over 50,000 organisations worldwide, helping them manage risk, improve performance, and protect what matters most. Combining smart technology with expert advice across Emplo…
Skills: Documentation production, Health and safety legislation, Risk assessments, Microsoft Office, Written communication
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: Chemical Engineering, Process Engineering, Nuclear Engineering, Process Safety, Design Engineering
Warrington, England, United Kingdom · On-site
Nursery: Cherry Tree, 73 Orford Ln, Warrington WA2 7BS Hours: Part Time, Monday to Friday, 20 hours per week, Monday to Friday, 5am till 9am Salary: £12.71 per hour Benefits: Performance related bonus, 50% childcare disc…
Skills: Cleaning, Hygiene standards, Health and safety, COSHH, Safeguarding
Warrington, England, United Kingdom · On-site
Trainee First Response Technician - Start Your Career in Insurance Launch a Long-Term Career in the Insurance Industry This isn’t just a job - it’s a structured entry route into one of the UK’s most stable and rewarding …
Skills: Customer Service, Property Restoration, Damage Mitigation, Time Management, Communication Skills
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: Civil engineering, Structural engineering, Nuclear engineering, Seismic assessment, Steel design
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: Civil engineering, Structural engineering, Technical drawing, CAD, Cimage
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: Mechanical Engineering, Technical Accountability, Nuclear Engineering, Safety Case Development, High-Integrity Piping Design
City of Leicester, England, United Kingdom · Hybrid
$60k–$70k/yr
Job Title: Financial Reporting Manager Location: UK, Fully Remote + Occasional Travel to Devonport, Plymouth Compensation: £60,000 - £70,000 + Benefits Role Type: Full Time / Fixed Term Contract Role ID: SF75216 Shape Th…
Skills: Financial reporting, Statutory accounts preparation, Financial governance, Financial controls, Team leadership
Derby, England, United Kingdom · Hybrid
$42k–$55k/yr
Role: Security Assurance Officer Location: Hybrid, based from one of our offices in Derby, Manchester or Warrington About Us Rolls‑Royce SMR is here to transform how nuclear energy is delivered—cleaner, faster and at glo…
Skills: Security assurance, Physical security, Personnel security, Risk management, Audit activity
Derby, England, United Kingdom · Hybrid
$42k–$55k/yr
Role: Security Assurance Officer Location: Hybrid, based from one of our offices in Derby, Manchester or Warrington About Us Rolls‑Royce SMR is here to transform how nuclear energy is delivered—cleaner, faster and at glo…
Skills: Security assurance, Physical security, Personnel security, Risk management, Regulatory compliance
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 design, 3D modeling, AutoDesk Inventor, AutoDesk Vault, Mechanical drawings
Cannock, England, United Kingdom · Hybrid
Ready to find the right role for you? Salary: From £75,000 plus car/allowance, bonus, enhanced pension and private medical cover Location: National role with regular travel to customer sites, Cannock office and other UK …
Skills: Occupational health, Injury prevention, Risk management, Strategic leadership, Change 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: Equipment qualification, Nuclear safety case, Technical writing, Engineering substantiation, RCC-E
Bristol, England, United Kingdom · Hybrid
$50k–$76k/yr
Title: MESM CAT A2 and B Operator Title: MESM CAT A2 and B Operator Salary range: £50,000 to £76,000 per annum depending on experience Location: Glasgow, Plymouth, Bristol or Warrington - Other locations may be considere…
Skills: Submarine Engineering, Submarine Safety, MESM Cat A2/B Operation, Safety Case Documentation, Hazard Analysis
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The Principal Engineer will provide leadership and guidance to the JV CSA design and site engineering team while overseeing design submissions and site modifications. They are responsible for interfacing with multi-discipline teams and ensuring project progress aligns with safety and construction requirements.
Candidates must hold a Civil or Structural Engineering degree and be a Chartered Engineer (CEng) with MICE or MIStructE. Significant experience in the nuclear sector and the ability to obtain UK security clearance are mandatory.
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 stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements.
Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.
Project Specific Requirements
📌 Report to CSA RE on a daily basis
👷 Provide leadership, guidance, and support to the JV CSA design and site engineering team
🏢 Attend the Warrington office a minimum of 3 days per week and visit the Sellafield site regularly (ideally fortnightly) to confidently engage with the multi-discipline JV construction team and subcontractors
📝 Check and comment on CSA JV design submissions during development, including site modifications; complete NFR documents and submit to SL Doc Control
✅ Review, check, accept or reject design submissions; sign and submit PMACD to SL Doc Control
📂 Review, check, accept or reject TQ/PP submissions
📊 Review the progress of all structural detail design drawings, calculations, and documents through to ‘As Built’ status by the JV CS&A designers
🏗️ Demonstrate general understanding of service supports and blockwork wall substantiation
🔥 Possess a general understanding of fire strategy arrangements (preferred), including fire-rated service hanger supports; attend meetings with Fire Consultants to review conventional and nuclear fire issues
🔗 Interface with the multi-discipline design team on project issues; liaise with SL Capability as required to substantiate site issues encountered during construction
🛡️ Provide support to Safety Case work, including DJRs
External Works
🌍 Demonstrate good design understanding of external works, including concrete slabs and surface water drainage standard details
🏢 Review and comment on all interfaces between the external works and the building external envelope as construction progresses
🤝 Engage regularly with the JV construction team and supply chain on site; attend weekly meetings as required
⚠️ Attend weekly risk review meetings and support EWNs
Site Visits
📅 Visit site weekly (minimum bi-weekly) for the day
👷 Liaise with the site construction team and conduct or participate in site walkdowns to oversee, discuss, and resolve CS&A-related construction issues
🔌 Liaise and interface with SL Site Utilities and Infrastructure Capability to secure buy-in to contractor proposals prior to construction where applicable
Qualifications and Experience
🎓 Civil / Structural Engineering Degree, or equivalent
🏅 Chartered Engineer (CEng) – MICE or MIStructE
🏗️ Demonstrable expertise in major project areas relevant to the engineering discipline, with a proven track record of successfully applying specialist knowledge and skills
🧭 Ability to provide strategic guidance based on experience across a portfolio of projects, helping to inform and direct programmes
👥 Proven leadership capability within an engineering function
☢️ Experience working within the Nuclear Sector, including new build and decommissioning projects, in roles reliant upon professional engineering expertise and judgement
📐 Strong understanding of design principles and the ability to apply them effectively
📚 Working knowledge of British Standards
🗣️ Excellent written and verbal communication skills
🚗 Full UK driving licence (or equivalent permitting driving in the UK)
🔐 Able to meet the requirements for UK security clearance
Security clearance
This role requires the successful candidate to hold a minimum of a BPSS clearance without any caveats to that clearance.
We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.
Assystem, one of the world's leading independent nuclear engineering companies, is committed to accelerating the energy transition. We see ourselves as an activist in the development of nuclear energy, convinced that it is an essential part of the fight against climate change. 8,000 switchers, spread in 13 countries in Europe, Asia, Africa and the Middle East are working every day to make the energy switch by accelerating the development of nuclear and renewable energies, power grids, clean hydrogen projects and low-carbon transport. We design and supervise major projects through our engineering activities and accelerate our customers' digital transformation. We also develop new solutions to build faster and improve the performance of complex infrastructures. 59 years of experience have made Assystem a key partner of the world's largest industrial groups: CEA, EDF, ENEC, Enedis, Engie, Framatome, ITER, K.A. CARE, Naval Group, NICDC, Orano, RATP, Rolls Royce, Royal Commission, Sellafield, SNCF... Assystem is ranked in the Top 3 companies in the nuclear energy sector.
Offices: 11, Allée de l'arche, Tour Egée, Courbevoie, Ile-de-France 92400, FR · 6998 King Fahd Rd, 4540, Al Olaya, Riyadh 12331, Arabie saoudite, Al Olaya, SA · Olaya, Al Khobar 31952, Arabie saoudite, Al-Khobar, 31952, SA · 161 Castlereagh Street, Sydney, AU · Omar Ibn El Khattab, Intercontinental CityStar Hotel, 2ème étage, Le Caire, 11757, EG
There are currently 154 open security & safety positions in Warrington, United Kingdom listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Assystem, Babcock International Group, Amentum, Rolls-Royce SMR, HSL Compliance, among others. Browse the listings above to see every active employer.
Yes — 95 of the 154 open security & safety positions offer remote or hybrid work (1 remote, 94 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.
