Contract Opportunity: Senior / Principal Mechanical Engineer - Hybrid (Sellafield Projects) Rate: £51-£61 per hour (Inside IR35) Location: Hybrid - 3 days per week in Cumbria office Sector: Nuclear - Task Delivery Projects

Are you an experienced Mechanical Engineer ready to lead and deliver complex projects for Sellafield? We are seeking a Senior or Principal Mechanical Engineer to provide technical expertise and drive the delivery of task-based projects across the site. This hybrid role combines focused on-site work in Cumbria with the flexibility to work remotely.

Key Responsibilities:

Deliver and manage mechanical engineering tasks across multiple project stages

Develop and review designs, calculations, and technical documentation

Ensure compliance with Sellafield standards, nuclear safety requirements, and site licence conditions

Support design reviews, risk assessments, and HAZOP activities

Mentor and guide junior engineers, providing technical leadership and assurance

Collaborate with multi-discipline teams to achieve project objectives efficiently What We're Looking For:

Proven experience as a Senior or Principal Mechanical Engineer in nuclear or highly regulated environments

Strong technical knowledge in mechanical systems, structures, and process equipment

Experience delivering task-based projects with attention to schedule and quality

Familiarity with Sellafield design processes and standards (advantageous)

SC clearance preferred (or ability to obtain) This is your chance to work on high-profile projects at the forefront of nuclear engineering while benefiting from a hybrid working arrangement, spending 3 days per week in Cumbria. Apply now to take your mechanical engineering expertise to the next level on Sellafield projects