Senior Or Principal Mechanical Engineer

Highfield Professional Solutions Ltd; England; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A leading engineering firm is seeking a Senior / Principal Mechanical Engineer to lead complex projects within nuclear engineering. The role involves managing tasks, developing designs, and ensuring compliance with regulations while enjoying a hybrid work arrangement. Ideal candidates have significant experience in nuclear environments and strong technical knowledge in mechanical systems.

Qualifications

• 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.

Responsibilities

• Deliver and manage mechanical engineering tasks across multiple project stages.
• Develop and review designs, calculations, and technical documentation.
• Ensure compliance with Sellafield standards and nuclear safety requirements.

Skills

Mechanical systems expertise

Project management

Technical leadership

Nuclear safety compliance

Job description

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