Job Description

Principal Mechanical Engineer
Location: Warrington, Manchester (Hybrid, 3 days/week onsite)
Contract: 12 months
Rate: 63 - 81/hr (Umbrella, Inside IR35)
Security Clearance: Must be eligible for SC
Are you an experienced Mechanical Engineer with a background in defence, nuclear, or high-integrity engineering projects?
We're recruiting for Senior and Principal Mechanical Engineers to support cutting-edge, safety-critical programmes across the UK's defence infrastructure. This is a long-term opportunity with a leading engineering consultancy delivering strategic work across secure sites.
Projects You'll Support
The role involves leading mechanical engineering activities on complex decommissioning systems, with a strong focus on mechanical handling, cutting technologies, and integration of bespoke tooling into challenging environments. Your responsibilities include but are not limited to:

• Leading multidisciplinary engineering teams and overseeing delivery of complex mechanical design solutions.
• Producing, reviewing and approving engineering deliverables including calculations, design specifications, reports and technical assessments.
• Ensuring engineering work meets regulatory expectations, safety standards and project requirements.
• Mentoring engineers and promoting high standards of technical performance and safety culture.

Key Requirements

• Degree in Mechanical Engineering (BEng/MEng)
• Chartered Engineer (CEng)
• Strong background as a Senior/Principal Mechanical Engineer within a highly regulated industry (nuclear, defence, marine, oil & gas, heavy industrial, etc.).
• Eligible for SC clearance (must have lived and worked in the UK for the past 5 years)

Why Apply?
This is a unique opportunity to influence nationally significant programmes, working with expert teams in an environment that values innovation, safety, and high standards.
Interested?
Apply today with your CV and availability, or contact me directly for more info. Candidates with prior defence or nuclear site experience are strongly encouraged to get in touch.

Skills Required