Senior Mechanical Engineer, Nuclear Systems & Design Lead

Assystem UK Ltd. is seeking a Principal Engineer to lead Front End Engineering activities for Small Modular Reactors, Advanced Modular Reactors and Fusion projects.

You will steer multi-disciplinary teams, deliver engineering scope with focus on optioneering and safety-driven design, and ensure integration into broader plant infrastructure. Your leadership will guide the delivery of cutting-edge power station systems while upholding stringent UK safety and quality standards.