Principal Mechanical Engineer

Principal Mechanical Engineer – Nuclear  About the Company Our client is a leading engineering and project delivery organisation operating across highly regulated sectors including nuclear, energy, water and…

Contract type Contract
Posted 10 August 2026

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About this contract

Principal Mechanical Engineer – Nuclear 

About the Company

Our client is a leading engineering and project delivery organisation operating across highly regulated sectors including nuclear, energy, water and infrastructure. They deliver complex engineering solutions for major UK programmes and are continuing to expand their nuclear capability.

The Role

An opportunity has arisen for an experienced Principal Mechanical Engineer to support the delivery of major nuclear projects, specialising in Nuclear Mechanical Handling. The successful candidate will provide technical leadership, manage engineering resources, oversee design delivery and support the development of junior engineers.

Key Responsibilities

Lead mechanical engineering design activities across the project lifecycle.
Manage technical interfaces and multidisciplinary design teams.
Review, check and approve engineering deliverables.
Ensure compliance with relevant regulations, codes and standards.
Support project reporting, risk management and resource planning.
Mentor and develop junior engineers.

Requirements

Typically 12+ years' mechanical engineering experience.
SQEP within the nuclear sector.
Extensive experience in Nuclear Mechanical Handling.
Strong understanding of UK regulatory requirements including CDM, PESR, Machinery Safety Regulations and ATEX.
Experience producing and reviewing:

Design Justification Reports
Mechanical Handling Diagrams
Design Proposal Drawings
Plant & Building Layouts
Equipment Specifications & Datasheets
Single and Multi-Discipline Design Reviews

Desirable

Stress analysis experience.
Site/construction environment experience.
Supply chain management experience.
Knowledge of HVAC, rotating equipment, process plant or lifting equipment

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