Mechanical Engineer - Outage

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

You will be  responsible for the design and delivery of Mechanical, Electrical and Plumbing (MEP) layouts, modules, and installation assemblies for the Outage area within the Reactor Island of the project. 

Working as part of a core Layout and Installations team, the role will take ownership of a defined area of the Reactor Island design. You will develop plant arrangements, define modularisation strategies, and determine construction, installation, and commissioning methodologies across the full lifecycle of the plant.

Getting layout, modularisation, and installation design right is fundamental to the success of the SMR programme and a key enabler of our innovative, modular build philosophy.

• Location: Derby 
• On Site: 2 times per week 
• Clearance: BPSS 
• Experience Level: 3-10 YOE 

Key Responsibilities:

• Deliver the Outage Block design within Reactor Island as part of an Integrated Project Team (IPT), coordinating inputs from disciplines including Operations, Maintenance, Civils, Architecture, E3S, Human Factors, Systems, Components, CAD, Supply Chain, and Build Certainty.
• Develop innovative mechanical and layout solutions, applying industry best practice and novel approaches within established engineering governance.
• Champion safety by embedding ONR Safety Assessment Principles, RR SMR E3S Principles, and applicable layout guidance (EPRI, European Utility Requirements, INPO).
• Progress plant layout designs and associated installation assemblies through formal design reviews.
• Contribute to requirements definition, risk management, and stakeholder engagement to ensure robust, buildable, and operable solutions.

Qualifications

Required Skills:

• Engineering layout and installation design (MEP), from concept to detailed design
• Strong design judgement, optioneering, and problem-solving capability
• Requirements management and systems engineering awareness
• Design for through-life operation, maintenance, and safety
• Safety-led engineering within a regulated environment
• Understanding of modular construction and installation sequencing
• Ability to work effectively in cross-functional, integrated teams
• Clear technical communication and stakeholder engagement

Required Qualifications:

• A Bachelor’s or Master’s degree in Engineering, or equivalent military experience.

Desirable Skills:

• Experience in nuclear, power generation, or other safety-critical industries
• Knowledge of ONR safety principles, INPO guidance, or similar regulatory frameworks
• Understanding of power station operations, outage activities, and maintenance planning
• Experience with modular construction and constructability assessments
• Familiarity with CDM regulations and construction sequencing
• Awareness of decommissioning requirements and through-life asset management

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. 

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.

About the Company

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!