Principal Mechanical Engineer

JAM Recruitment Ltd; Warrington; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A leading engineering consultancy is seeking a Principal Mechanical Engineer for high-profile Defence programmes in Warrington. This role, crucial for the UK’s defence infrastructure, offers an opportunity to influence nationally significant projects that prioritize innovation and safety.

Qualifications

• Eligible for SC clearance (must have lived and worked in the UK for the past 5 years).
• Experience in the nuclear or defence sectors.
• Strong background in Mechanical Engineering.

Responsibilities

• Support major decommissioning and infrastructure upgrades.
• Participate in submarine decommissioning demonstrator development.
• Provide technical support for Defence Infrastructure Organisation (DIO) projects.

Skills

Mechanical Engineering

Proficient with Autodesk Inventor

Mechanical or Manual Handling Systems

Education

Degree in Mechanical Engineering (BEng/MEng)

Chartered Engineer (CEng)

Job description

Principal Mechanical Engineer

Location: Warrington, Manchester (Hybrid, 3 days/week onsite)

Contract: 12 months

Rate: £57-£78/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 multiple 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

You'll play a key role on a range of high-profile Defence programmes, including:

Major decommissioning and infrastructure upgrades at a leading defence establishment
Submarine decommissioning demonstrator development for the UK MoD at Rosyth
Technical support frameworks for the Defence Infrastructure Organisation (DIO)

Key Requirements

Degree in Mechanical Engineering (BEng/MEng)
Chartered Engineer (CEng)
Experience in the nuclear or defence sectors
Strong background in Mechanical Engineering
Proficient with Autodesk Inventor
Proven experience with mechanical or manual handling systems
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

Job Info

Job Title:

Principal Mechanical Engineer

Company:

JAM Recruitment Ltd

Location:

Warrington, Cheshire

Posted:

Jul 3rd 2025

Closes:

Aug 3rd 2025

Sector:

Military, Emergency & Government

Contract:

Contract

Hours:

Full Time

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