Nuclear Mechanical Engineer - Design & Substantiation Lead

AtkinsRéalis; West of England; Hybrid; GBP 55,000 - 75,000; Full time

Job summary

AtkinsRéalis in the UK is seeking an experienced Mechanical Engineer to join the Derby office and help expand our nuclear engineering portfolio. You will lead the design and substantiation of mechanical equipment for UK fleet operations, work across major programmes, and collaborate with clients and internal teams to deliver safe, efficient, and compliant solutions.

The role offers flexible working and hybrid arrangements to support work‑life balance as part of a collaborative and diverse team.

Qualifications

• Proven experience as a mechanical engineer.
• Ability to work in fast-paced environments.
• Experience delivering design and substantiation of mechanical equipment.

Responsibilities

• Deliver mechanical engineering and multi-disciplinary projects for clients.
• Manage timescales, solve problems, and guide junior engineers.
• Deliver design and substantiation across lifecycle stages from concept to construction.
• Liaise with stakeholders to understand issues and build lasting relationships.

Skills

Mechanical design

Stakeholder liaison

Project coordination

Nuclear industry experience

Job description

AtkinsRéalis in the UK is seeking an experienced Mechanical Engineer to join the Derby office and help expand our nuclear engineering portfolio. You will lead the design and substantiation of mechanical equipment for UK fleet operations, work across major programmes, and collaborate with clients and internal teams to deliver safe, efficient, and compliant solutions.

The role offers flexible working and hybrid arrangements to support work‑life balance as part of a collaborative and diverse team.