Mechanical Integration Engineer - #1725516

️ About AssystemAt Assystem, we are committed to accelerating the global energy transition. With 7,500 employees worldwide, our Switchers combine deep engineering expertise with cutting-edge digital tools to drive progress in the energy sector. In the UK, we are proud to play a leading role in major nuclear programmes, helping to build a cleaner and more secure energy future.

Why Join the Community of Switchers?You’ll be joining one of the top three largest nuclear engineering companies in the world. Our teams are embedded in some of the UK’s most critical energy projects, where your skills will shape long-term infrastructure. Collaborate with high-performing engineers and contribute to projects that matter—for today and the future.

The Job MissionThe role of Mechanical Integration Engineer sits within the Equipment team on a major UK nuclear power plant project. You will lead the coordination of technical topics across multiple stakeholders. Your future team is focused on managing design stability, configuration control, and resolving technical interface challenges.

Key responsibilities include:

• Coordinate and resolve technical issues across contracts, systems, and buildings
• Act as the lead representative for design maturity and stability within the Equipment team
• Manage and report on the resolution of design changes and outstanding technical topics
• Maintain oversight of all open technical matters, including validation and escalation as needed
• Lead internal decision-making processes and advise on appropriate governance when required
• Support the implementation of configuration management best practices across the team
• Produce progress reports and dashboards on design changes and open technical issues
• Facilitate collaboration between engineering entities to remove project blockers

Essential Skills

• Degree in Mechanical Engineering or equivalent
• Strong engineering, project leadership, or coordination background
• In-depth knowledge of nuclear design and engineering processes
• Experience leading in complex, regulated environments
• Ability to drive team performance and maintain design discipline
• Proven track record of ensuring quality and technical integrity

Desired Skills

• Familiarity with large-scale nuclear project governance and processes
• Experience working within an Equipment team or cross-functional coordination role
• Knowledge of configuration and change management tools
• Technical reporting and KPI dashboard development
• Previous involvement in UK-based nuclear construction projects

This is your chance to shape one of the UK’s most vital infrastructure projects, working alongside experts in a fast-moving, impactful sector. If you’re ready to drive engineering excellence, we want to hear from you.

Benefits include: Hybrid Working Opportunity Pension scheme (8% company contribution / 4% personal contribution) 25 days’ paid annual leave + bank holidays + option to buy or sell days Professional fees reimbursed Flexible working hours Employee referral scheme

We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.