Derby, England, United Kingdom · Hybrid
$51k–$67k/yr
Role Title: Senior Engineer - Thermofluids Model Validation We are Rolls-Royce SMR and we’re doing something that’s never been done before. We’re revolutionising an industry. That’s a once-in-a-career opportunity for tho…
Skills: Fluid Dynamics, Thermal Processes, RELAP, Flomaster, Vipre
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: EC&I Design, Project Management, Configuration Management, Technical Oversight, System Integration
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 Engineering, Detailed Design, Process Piping Design, Nuclear Containment, Shielding Design
Warrington, England, United Kingdom · Hybrid
Job Title: Modular Reactor Process Lead Location: Remote, UK Compensation: Attractive Salary + Benefits Role Type: Full time / Permanent Role ID: SF72106 Shape The Future of Clean Energy At A Defining Moment For Nuclear …
Skills: Process Engineering Assurance, Modular Reactor Technologies, Engineering Leadership, Technical Rigour, Regulatory Compliance
Bristol, England, United Kingdom · Hybrid
Job Title: Nuclear Licensing Lead Location: Flexible, UK + Hybrid Working Arrangement Compensation: Attractive Salary + Benefits Role Type: Full time / Permanent Role ID: SF 72117 Shape The Future Of Nuclear Innovation A…
Skills: Nuclear Licensing, Regulatory Compliance, Nuclear Safety, Stakeholder Management, Licensing Strategy
Warrington, England, United Kingdom · Hybrid
Job Title: Nuclear Safety Lead Location: Remote, UK Compensation: Attractive Salary + Benefits Role Type: Full time / Permanent Role ID: SF72081 Shape the future of clean energy at the forefront of nuclear innovation The…
Skills: Nuclear Safety Engineering, Safety Case Authoring, Technical Leadership, Regulatory Compliance, Licensing Processes
Warrington, England, United Kingdom · Remote OK
Job Title: Electrical Control and Instrumentation Engineering Lead Location: Flexible/Remote Working Arrangements Compensation: Attractive Salary + Benefits Role Type: Full time / Permanent Role ID: SF72111 Shape The Fut…
Skills: Electrical Engineering, Control And Instrumentation Engineering, Technical Leadership, Engineering Assurance, Project Delivery
Warrington, England, United Kingdom · On-site
Are you a Registered veterinary Nurse looking for the next exciting step in your career? Do you seek a role that enables you to utilise your nursing skills and make a difference? We are looking for Registered Veterinary …
Skills: Veterinary Nursing, Patient Care, Clinical Nursing, Diagnostics, Dental Suite Operation
Derby, England, United Kingdom · Hybrid
$51k–$66k/yr
Location: Flexible (Derby, Warrington, Manchester – hybrid working) Our Mission At Rolls-Royce SMR, we’re delivering a new generation of low-carbon nuclear power. Our mission is to provide affordable, scalable clean ener…
Skills: Component Mechanical Design, CAD Tools, Siemens NX, Inventor, Design-for-Manufacture
Derby, England, United Kingdom · Hybrid
$51k–$66k/yr
Location: Flexible (Derby, Warrington, Manchester – hybrid working) Our Mission At Rolls-Royce SMR, we’re delivering a new generation of low-carbon nuclear power. Our mission is to provide affordable, scalable clean ener…
Skills: Component Mechanical Design, CAD Tools, Siemens NX, Inventor, Design-for-Manufacture
Derby, England, United Kingdom · Hybrid
$60k–$79k/yr
At Rolls‑Royce SMR, our mission is simple and ambitious: to deliver clean, affordable energy for all. Our Small Modular Reactor (SMR) programme provides a British solution to a global energy challenge, helping the world …
Skills: Chemistry, Nuclear Engineering, Water Chemistry Control, Technical Communication, Collaboration
Derby, England, United Kingdom · Hybrid
$60k–$79k/yr
At Rolls‑Royce SMR, our mission is simple and ambitious: to deliver clean, affordable energy for all. Our Small Modular Reactor (SMR) programme provides a British solution to a global energy challenge, helping the world …
Skills: Water Chemistry Control, Nuclear Engineering, Regulatory Compliance, Technical Leadership, Mentoring
Warrington, England, United Kingdom · On-site
Job Family: Sales and Business DevelopmentOverview Bold. Energetic. Ingenious. Genuine. These qualities best describe employees who work for Ingevity. We believe it takes extraordinary people to create extraordinary resu…
Skills: Laboratory Safety, Polyurethane Chemistry, Polymer Characterization, Application Testing, Task Management
Warrington, England, United Kingdom · On-site
Work Schedule Standard (Mon-Fri) Environmental Conditions Some degree of PPE (Personal Protective Equipment) required (safety glasses, gowning, gloves, lab coat, ear plugs etc.) Job Description As part of the Thermo Fish…
Skills: Material Handling, SAP/ERP, Inventory Accuracy, PPI Methodology, Change Control
Warrington, England, United Kingdom · Hybrid
Join the PSC family and connect with accomplished and diverse colleagues who inspire and innovate students and transform lives and futures. Along with helping our students reach their goals, Pensacola State makes career …
Skills: Curriculum Development, Student Assessment, Online Instruction, Canvas LMS, Zoom
Liverpool, England, United Kingdom · Hybrid
Job Description Overview You might know us for the great work we do across our wide variety of projects. We're proud to say it's thanks to our people's diversity of thought, expertise, and knowledge. And when you join us…
Skills: Clean Water Network Modelling, Hydraulic Analysis, Synergi, InfoWorks WS, EPANET
Warrington, England, United Kingdom · On-site
Work Schedule Standard (Mon-Fri) Environmental Conditions Adherence to all Good Manufacturing Practices (GMP) Safety Standards Job Description As part of the Thermo Fisher Scientific team, you’ll discover meaningful work…
Skills: Laboratory Automation, VBScript, Python, Hardware Integration, Mechanical 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: HVAC Engineering, Requirements Capture, Mentorship, DFMEA, PFMEA
Derby, England, United Kingdom · Hybrid
$71k–$93k/yr
Role: Senior Manager – Mechanical Handling Location: Hybrid working with any Rolls-Royce SMR location as primary, including Derby, Warrington or Manchester. The Business Our mission is to deliver clean, affordable energy…
Skills: Mechanical Engineering, Technical Leadership, Design Governance, Project Management, Budget Management
Warrington, England, United Kingdom · On-site
Work Schedule Standard (Mon-Fri) Environmental Conditions Able to lift 40 lbs. without assistance, Adherence to all Good Manufacturing Practices (GMP) Safety Standards, Cleanroom: no hair products, jewelry, makeup, nail …
Skills: People Management, cGMP Regulations, Project Management, Statistical Process Control, FMEA
Derby, England, United Kingdom • Hybrid
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Technically lead a team to verify, validate, and quantify uncertainties in thermal hydraulic analysis codes for SMR power stations. Responsibilities include benchmarking analytical models against experimental data and supporting safety case development across reactor plant systems.
Requires a degree in Engineering, Physics, Mathematics, or Computer Science with strong expertise in fluid dynamics and thermal hydraulics tools. Candidates should have experience with Python, Linux HPC systems, and structured verification and validation processes.
We are Rolls-Royce SMR and we’re doing something that’s never been done before. We’re revolutionising an industry. That’s a once-in-a-career opportunity for those excited by such a challenge. This is more than just a job; this is a legacy.
We are now recruiting for a Senior Engineer - Thermofluids Model Validation to join our Performance & Analysis team, the centre of excellence for engineering analysis used to substantiate the performance and safety of the SMR power station.
Thermal hydraulic analysis codes are critical to modelling fluid and thermal systems that extract power from the nuclear core and ensure safe reactor operation. These codes underpin the design and safety case of the power station, so building confidence in their predictions is essential.
You will technically lead a small team, working closely with method development and analysis teams to verify, validate, and quantify uncertainties in these codes. You’ll support activities across reactor plant transient and fault analysis, core sub-channel analysis, and containment analysis.
Key areas of responsibility include:
This role requires strong leadership, technical expertise, and effective collaboration across multiple engineering disciplines.
Hybrid working with one of the following locations as your primary site: Derby, Manchester or Warrington
The salary band for this will be between £50,650–£66,500 dependent on the skills, values, and knowledge you bring. There may be some flexibility with the starting salary in exceptional cases, and, in due course, there is the potential for you to develop the role further.
Benefits include:
You’ll be joining a forward-thinking organisation that values transparency, fairness, and innovation. We offer a flexible, inclusive, and supportive working environment, opportunities for career growth in a rapidly scaling business, and a culture that values diversity, innovation, and continuous learning.
The closing date for this role is 16th August 2026.
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£66,465.00

You’ll be joining a forward-thinking organisation that values transparency, fairness, and innovation. We offer:
• A flexible, inclusive, and supportive working environment.
• Opportunities for career growth in a rapidly scaling business.
• A culture that values diversity, innovation, and continuous learning.
We are an equal opportunities employer and welcome applications from all backgrounds. Inclusivity is important to us, and as a Disability Confident organisation, we are committed to fair, supportive, and continually improving recruitment practices that ensure everyone has the opportunity to thrive.
Confidence can sometimes hold us back from applying for a job. But we'll let you in on a secret: there's no such thing as a 'perfect' candidate. If you feel you meet 75% of the requirements for this role, we would love to hear from you.
Also, if you are considering a career move or a sector-jump, please get in touch – we welcome applications from people with transferable skills.
Due to the safety regulations within the nuclear industry, applicants will be required to participate in additional screening. These are:
• Obtaining Baseline Personnel Security Standard (BPSS) clearance
• Satisfactory completion of a Disclosure and Barring Service (DBS) check
• Satisfactory completion of a basic financial probity check
#LI-CE1 #LI-Hybrid #WeareSMR #destinationnuclear
Providing clean, affordable energy for all.
Climate change and its consequences are one of the greatest challenges ever to face mankind. The global challenge around decarbonisation is huge. At Rolls-Royce SMR, our vision is simple – we want to provide clean, affordable energy for all. A new approach to delivering nuclear power Our Small Modular Reactor is an integrated power station, that takes well understood, existing nuclear technology and applies a factory-based philosophy to its fabrication and assembly. This repeatable, standardised approach generates huge efficiency gains to make it a commoditised product that is affordable, repeatable, deliverable and investable on a global scale, providing cheaper and more flexible electricity to form part of a future balanced, clean energy mix. When fully operational the Rolls-Royce SMR programme will create 40,000 regional UK jobs by 2050 and generate £54bn in economic benefit, with a forecast to target £250bn in global exports for the UK. Join us and help to provide clean, affordable energy for all
Offices: Derby, GB
There are currently 85 open science & research 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, PSC TRIO Educational Opportunity Centers, AECOM, among others. Browse the listings above to see every active employer.
Yes — 70 of the 85 open science & research positions offer remote or hybrid work (2 remote, 68 hybrid).
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