Let’s find your next opportunity​

{{ job.job_posting_title }}
{{item.trim() }} {{item.trim() }} {{item.trim() }}
{{ job.job_posting_title }}

{{ job.is_cms_job ? (job.cities.split(';').length > 1 ? 'Various locations' : job.location_mappings[0]) : (job.location_mappings.length > 1 ? 'Various locations' : job.location_mappings[0]) }}

saved
viewed

Mechanical Engineer – Nuclear (Civil & Defence)

Derby, Derbyshire, England, United Kingdom | Sheffield, South Yorkshire, England, United Kingdom

Overview

Are you an experienced Mechanical Engineer who is passionate about making the world a better place? Would you be excited to play a part in supporting the fight against climate change? Do you thrive in collaborative, creative environments? Are you looking for a challenging role that allows flexible working and work‑life balance? If this sounds like you, then we'd love to hear from you. We are looking for Mechanical Engineers to expand and grow our Derby office to meet increasing client demand in the region. As a member of our team, you will work on a diverse and challenging range of complex projects for our clients, with opportunities to work within AtkinsRéalis design teams or directly with our clients by being embedded into their major programmes.

Whether you possess a breadth of experience from working across different markets or industries, or you already have a depth of experience working in Nuclear, we have the pipeline of opportunities to ignite your career and take your skills and experience to the next level. The variety and scale of projects we work on means that there is something for everybody, and we work hard to make sure that all of our staff have fulfilling and rewarding careers. Whatever our individual roles, we approach everything we do with a sense of curiosity, care, courage and community.

You will have the opportunity to apply your existing skills and develop new skills across a wide range projects across the full UK nuclear industry. In Reactor Operations, your core work will involve leading the design and substantiation of mechanical equipment to the highest standards of safety, quality, and efficiency, to enable the continued operation and life extension of our UK fleet of nuclear power stations and nuclear‑powered submarines. Our team also work closely with our Power New Build business, supporting Hinkley Point C, Sizewell C, and the development of Small Modular Reactors and Fusion Energy reactors, as well as our Decommissioning business, supporting the safe dismantling, processing and packaging of nuclear waste at the UK's nuclear estate at Sellafield and across the UK's decommissioning power stations and nuclear‑powered submarines.

Your role

  • Whether you work in our offices or at client sites, you will be part of a team delivering a wide range of complex and exciting mechanical engineering and multi-disciplinary projects. Whether it's managing timescales, solving problems, or providing guidance to junior engineers, you'll bring energy and focus – helping the team stay calm, connected and focussed on delivering outstanding outcomes for our clients.
  • You will enjoy drawing upon your strengths to deliver design and substantiation projects at all stages of the lifecycle, from providing technical input to bids, budgets and schedules, working with clients to explore feasibility and optioneer engineering solutions, to detailed design and construction. You will be able to confidently liaise with, present to, and influence stakeholders at all levels both internally and externally, in understanding their issues, goals, and processes and to build strong, lasting relationships.
  • This role isn't just about project work though. You will be involved in the strategic growth and development of our Derby office and the wider team, including supporting the professional progression of junior colleagues. As part of our expansion plans for the Derby location, you'll have the opportunity to help shape our regional presence and service offerings.
Nuclear Engineering

Location

Various locations

Job Type

Full time

Ref

R-147560

Salary range

-

Joe Ansel

[email protected]

Joe Ansel

Hi there, I'm Joe Ansel and I manage this role

Message me

About you

  • You are someone who brings calm to complexity. You enjoy working in fast-paced environments and get a real sense of satisfaction from helping people stay organised and focused. You're naturally collaborative – someone who builds strong relationships and keeps communication flowing. You're comfortable juggling priorities, solving problems as they arise, and keeping things moving.
  • You've worked with a range of engineering tools to design and substantiate mechanical equipment such as mechanical handling systems, machinery, test rigs, or mechanical components. You will understand how to deliver complex engineering projects through a structured design process, ensuring we deliver right-first-time solutions to our clients to time, cost and quality. You will have experience working in the UK nuclear defence industry and be motivated to continuously develop your skills, whilst making a positive contribution to critical UK nuclear (civil and defence) programmes.

Why Derby?

Our Derby office serves as a key hub for our engineering and consultancy operations in the Midlands region. It boasts excellent transport links to London, Birmingham, Leeds, Sheffield, Bristol, Manchester, and the beautiful Peak District countryside, and is also well positioned to key clients in the nuclear (civil & defence) and manufacturing sectors.

Derby has a rich engineering heritage, particularly in nuclear, rail and aerospace, and is now one of the fastest growing cities for professional services with significant city regeneration ongoing, yet is still very affordable compared to other major UK cities.

Why choose AtkinsRéalis?

Why choose AtkinsRéalis?

Wherever you are in your career – and whoever you are – AtkinsRéalis is for you. Here, support and collaboration are a vibrant part of a culture that lets you choose where – and how far – your career can go. Take on projects that push boundaries and drive sustainable impact, surrounded by colleagues who believe there's no limit to how brilliant you can be. It's time to join a like-minded team where you'll be rewarded, supported, and free to be your kind of brilliant.

Reward & benefits

Explore the rewards and benefits that help you thrive – at every stage of your life and your career. Enjoy competitive salaries, employee rewards and a brilliant range of benefits you can tailor to suit your own health, wellbeing, financial and lifestyle choices. Make the most of a myriad of opportunities for training and professional development to grow your skills and expertise. And combine our hybrid working culture and flexible holiday allowances to balance a great job and fulfilling personal life.

Be rewarded. Find out more.

video thumbnail

Make it brilliant, a career with AtkinsRéalis

Our supportive, collaborative culture inspires us as a global community every day.

Watch this short film and imagine what you could achieve here, too.

About AtkinsRéalis

About AtkinsRéalis

We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's'infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We're committed to leading our clients across our various end markets to engineer a better future for our planet and its people.

Find out more.

Additional information

Security clearance

This role may require security clearance and offers of employment will be dependent on obtaining the relevant level of clearance. If this is necessary, it will be discussed with you at interview. The vetting process is delivered by United Kingdom Security Vetting (UKSV) and may require candidates to provide proof of residency in the UK of 5 years or longer. If applying to this role please do not make reference to (in conversation) or include in your application or CV, details of any current or previously held security clearance.

We are committed to creating a culture where everyone feels that they belong - a place where we can all be ourselves, thrive and develop to be the best we can be. So, we offer a range of family friendly, inclusive employment policies, flexible working arrangements and employee resource groups to support all employees. As an Equal Opportunities Employer, we value applications from all backgrounds, cultures and ability.

Related jobs

Senior Water Resources Engineer Group Leader
Water Engineering Full time
Senior Water Resources Engineer Group Leader

Henderson, Nevada, United States of America

Senior Geotechnical Tailings Engineer, North America Minerals & Metals
Minerals & metallurgy Engineering Full time
Senior Geotechnical Tailings Engineer, North America Minerals & Metals

Various locations

Senior Project Manager, Minerals & Metals
Minerals & metallurgy Project & Programme Management Full time
Senior Project Manager, Minerals & Metals

Various locations

Engineer, Roadway Design
Transportation Engineering Full time
Engineer, Roadway Design

Deland, Florida, United States of America

Agent(e), Centre d'appels
Transportation Full time
Agent(e), Centre d'appels

Montreal, Quebec, Canada

Coordonnateur(trice), Propositions
Minerals & metallurgy Business Development Full time
Coordonnateur(trice), Propositions

Various locations

Senior Legal Counsel
Nuclear Legal Full time
Senior Legal Counsel

Mississauga, Ontario, Canada

Talent Acquisition Advisor
Nuclear Human Resources Full time
Talent Acquisition Advisor

Mississauga, Ontario, Canada

Life Safety Engineer (Fire Protection Specialist)
Cities & development Engineering Full time
Life Safety Engineer (Fire Protection Specialist)

Toronto, Ontario, Canada

BIM Coordinator
Transportation Engineering Full time
BIM Coordinator

Various locations

Conseiller(ère) en environnement, Projet - Centrale Isle-Maligne
Clean power Sciences Full time
Conseiller(ère) en environnement, Projet - Centrale Isle-Maligne

Various locations

Senior Cyber Security Specialist (Calgary)
Corporate Engineering Full time
Senior Cyber Security Specialist (Calgary)

Calgary, Alberta, Canada

Related blogs

Finding my place in the environment: a journey through people, places, and purpose

From anthropology to infrastructure, my journey hasn’t been traditional — but it’s been meaningful. Here’s how I found a role where people come first.

Card link for Finding my place in the environment: a journey through people, places, and purpose
Engineering work office

Engineering jobs in Ontario that let you innovate, create, and impact

Ontario is one of Canada’s most exciting places to build a career in engineering, a province where bold infrastructure, clean energy transformation, and groundbreaking transit development are reshaping the way communities live, move, and thrive.

Card link for Engineering jobs in Ontario that let you innovate, create, and impact
three AtkinsRéalis colleagues around a table, smiling and discussing

Civil engineering careers: 5 UK cities to watch in 2026 and beyond

Card link for Civil engineering careers: 5 UK cities to watch in 2026 and beyond
Accessibility that empowers: Giridhar’s story at AtkinsRéalis

Greatly and Brightly: Thriving as a woman in engineering

Irene Seo, P.Eng shares her woman in engineering career journey from an early role in civil engineering to a director role with global influence.

Card link for Greatly and Brightly: Thriving as a woman in engineering