Senior Principal Mechanical Engineer – Nuclear Systems (Hybrid)

Assystem, a leading nuclear engineering firm, is seeking a Senior Principal Mechanical Engineer to lead design for cooling water systems within the Fusion and Modular Nuclear unit. You will manage multidisciplinary teams, perform risk analyses, and ensure compliance with ONR and HSE standards across UK projects.The role offers hybrid work arrangements with 1–2 days remote per week and opportunities to influence major UK and international nuclear programmes. #J-18808-Ljbffr