Nuclear engineer Work, Jobs in Riddings, Dby (with Salaries)

Thermal Hydraulics Analysis Engineer - Nuclear
ALTEN —Derby
- Full-time
- Hybrid work
- Military
- Engineering
- Master's degree
- Employee assistance programme
- Life insurance
Quick apply
Lead Chemist (Nuclear Engineering)
Rolls-Royce SMR —Derby
- £60,000 - £78,750 a year
- Full-time
- Hybrid work
- Mentoring
- Leadership
- Communication skills
Junior Freshwater Ecologist
AtkinsRéalis —Derby
- Full-time
- Hybrid work
- IT
- Communication skills
Layout and Installation Assemblies Engineer (Site Specific)
Rolls-Royce SMR —Derby
- £42,000 - £55,125 a year
- Full-time
- Hybrid work
- Engineering
- Travel
- Electrical Engineering
Design Engineer – Hazard protection
Rolls-Royce SMR —Derby
- £42,000 - £55,125 a year
- Full-time
- Hybrid work
- Engineering
- No degree
- Communication skills
Head of Engineering Operating System
Rolls-Royce SMR —Derby
- £85,600 - £112,350 a year
- Full-time
- Hybrid work
- Engineering
- No degree
- Travel
10d
Mechanical Engineer – Nuclear (Civil & Defence)
AtkinsRéalis —Derby
- Full-time
- Hybrid work
- Communication skills
3d
Mechanical Engineer - CAD
ALTEN —Derby
- Full-time
- Hybrid work
- Military
- Engineering
- Master's degree
- Employee assistance programme
- Life insurance
Quick apply
Engineering Capability – Governance and Assurance Senior Engineer
Rolls-Royce SMR —Derby
- £50,600 - £66,465 a year
- Full-time
- Hybrid work
- Engineering
- Analysis skills
- No degree
13d
General Foreman (Rolls Royce)
Balfour Beatty —Derby
- Hybrid work
- First Aid Certification
- Organisational skills
- Construction experience
- Annual leave
5d
Join AECOM's Growing Ground Engineering Team!
AECOM —Chesterfield
- Full-time
- Hybrid work
- Engineering
- Master's degree
- Bachelor's degree
ICS/OT Cyber Support
Rolls-Royce SMR —Derby
- £42,000 - £55,125 a year
- Full-time
- Hybrid work
- Engineering
- No degree
- Travel
3d
Head of Cooling Water Island (CWI) / Balance of Plant (BOP)
Rolls-Royce SMR —Derby
- £85,600 - £112,350 a year
- Full-time
- Hybrid work
- Engineering
- Mechanical knowledge
14d
Cost Engineer
Rolls-Royce SMR —Derby
- £42,000 - £55,125 a year
- Full-time
- Hybrid work
- Microsoft Excel
- Engineering
- Contracts
16h
Stress Engineer
Assystem —Derby
- CAD
- Engineering
- Microsoft Office
Manager - Reactor Inventory Systems
Rolls-Royce SMR —Derby
- £63,750 - £78,750 a year
- Full-time
- System design
- Leadership
Mechanical Engineer – Nuclear
AtkinsRéalis —Derby
- Full-time
- Hybrid work
- Communication skills
3d
Layout Integration Engineer
Assystem —Derby
- CAD
- Engineering
- IT
- Annual leave
- Referral programme
Configuration Management Engineer
Assystem —Derby
- Hybrid work
- Microsoft Word
- Civil engineering
- Microsoft Excel
- Annual leave
- Flexible schedule
Engineering Capability Lead - Process Optimisation
Rolls-Royce SMR —Derby
- £60,000 - £78,750 a year
- Full-time
- Hybrid work
- Engineering
- Continuous improvement
- No degree

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Thermal Hydraulics Analysis Engineer - Nuclear

ALTEN -
Derby

Quick apply

Job details

Full-time

Benefits

Company pension
Tech scheme
Employee assistance programme
Private medical insurance
Life insurance

Qualifications

Military
Engineering
Mechanical Engineering
Master's degree
Bachelor's degree

Full job description

Company Description

ALTEN is a global engineering and technology consultancy operating across over 35 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, IT and many more to deliver innovative engineering solutions that drive technological advancement & support sustainable transformation.

Our teams of passionate and agile engineers work on cutting-edge projects that shape the future of technology and sustainability. At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrow’s world—today.

Join us and start building tomorrow’s world today!

Job Description

As a Thermal Hydraulics Analysis Engineer , you will join Derby team to support our activities within the Nuclear sector.

You will play a key role in supporting the LOCA fault analysis team, contributing to the delivery of detailed design and GDA Step 3 for advanced nuclear reactor systems.

This role focuses on Loss of Coolant Accident (LOCA) and steam generator tube rupture analyses, using system thermal hydraulics codes to support reactor safety cases and design validation.

You will be working within a highly regulated, safety-critical environment, contributing to the development and assessment of PWR (Pressurised Water Reactor) systems.

Location: Derby
On Site: 1 day / Remote
Clearance: BPSS
Experience Level: 5-10

Key Responsibilities:

Perform LOCA fault studies analysis, supporting ongoing safety and design assessments.
Conduct thermal hydraulics simulations using tools such as RELAP5-3D, CATHARE, or equivalent.
Analyse PWR water systems behaviour using 0D, 1D, or CFD modelling approaches.
Support analysis of steam generator tube rupture faults and related transient scenarios.
Provide technical input into reactor island system design and safety case development (GDA Step 3 E3S case).
Interpret simulation results to inform design decisions and safety justifications.
Collaborate with multi-disciplinary engineering teams to ensure alignment with nuclear safety requirements.
Contribute to technical documentation and safety case authoring where required.
Perform advanced thermal analysis and flow simulations using Flowmaster.
Carry out pressure drop, heat transfer, and system performance calculations.
Develop and validate models to support complex system designs.
Collaborate with cross-disciplinary engineering teams (mechanical, systems, safety, and integration).
Ensure all work is delivered to the highest technical and regulatory standards.
Contribute to design reviews, technical reports, and project milestones.

Qualifications

Required Skills:

Strong background in thermal hydraulics and fluid system analysis.
Experience with system thermal hydraulics codes (e.g. RELAP5-3D, CATHARE).
Knowledge of PWR technology and nuclear reactor systems.
Experience in fluid simulations, particularly thermal hydraulics (preferred over general thermofluids).

Required Qualifications:

Bachelor’s or Master’s degree in Mechanical Engineering, Aerospace Engineering, or related discipline or equivalent military experience.

Desirable Skills:

Experience in LOCA (Loss of Coolant Accident) analysis.
Familiarity with nuclear safety case development and regulatory frameworks.
Experience with CFD tools for thermal-fluid analysis.
Coding or modelling experience related to PWR system behaviour.

Additional Information

Why join us?

We bring together entrepreneurial, tech-driven people to deliver innovative solutions for leading companies.

At ALTEN, you’ll work on exciting projects, supported by ongoing learning, mentoring, and clear career development tailored to your goals.

Join a passionate team and help build tomorrow, today.

In short you get:

A personalised career path and a rewarding management style
A huge diversity of engineering projects and industries
Private Medical Insurance
Cycle & Tech Scheme
Employee assistance programme
Life insurance & Pension Scheme
Social atmosphere, regular gatherings & team buildings
Flexible way of working (role dependent)

We are proud to support the Armed Forces Covenant & actively encourage applications from members of the Armed Forces community, including veterans, reservists, service leavers, and military spouses/partners. We recognise the value of military skills and experience and are committed to ensuring that no applicant is unfairly disadvantaged during our recruitment and selection processes.

ALTEN is committed to fostering a diverse and inclusive workplace and values the strength that comes from a global mix of backgrounds and perspectives. We welcome applications from all suitably qualified candidates, regardless of background or protected characteristics under the Equality Act 2010. If you require any reasonable adjustments during the recruitment process, please let us know.

This role may require you to have or be willing to go through Security Clearance. As part of the onboarding process candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website Gov.UK. If you are unable to meet this and any associated criteria, then your employment may be delayed, or rejected . Details of this will be discussed with you at interview.

Quick apply

Refine Your Search

nuclear engineer jobs in riddings, dby

Thermal Hydraulics Analysis Engineer - Nuclear

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