Principal Mechanical Design Engineer

Rullion Engineering Cumbria; Warrington; On-site; GBP 60,000 - 85,000; Full time

Job summary

A leading engineering firm in Warrington is seeking a Principal Mechanical Engineer to oversee technical engineering studies in the nuclear sector. The ideal candidate will lead projects from concept through to operations support and mentor junior engineers. Strong communication skills and substantial experience in mechanical engineering are required. This position offers competitive benefits including private medical insurance and a bonus scheme.

Benefits

25 days annual leave plus bank holidays

Bonus scheme

Private medical insurance

Non-contribution pension scheme

Free on-site parking

Qualifications

• 7-8+ years of mechanical engineering experience in the nuclear sector is essential.
• Knowledge of design processes including concept and detailed design.
• Experience delivering mechanical studies covering handling systems and related processes.

Responsibilities

• Deliver and manage mechanical engineering studies from concept to operations support.
• Produce and review technical deliverables including reports and specifications.
• Act as a key technical contact for stakeholders and mentor junior engineers.

Skills

Strong communication and stakeholder management skills

Proactive and solution-focused

Organised and adaptable

Leadership qualities

Education

Degree in Mechanical Engineering or equivalent

Chartered Engineer (IMechE) or working towards chartership

Job description

Overview

We are looking for a Principal Mechanical Engineer to lead technical engineering studies and provide specialist input across all project phases in the nuclear sector. The role combines technical delivery, team leadership, and stakeholder engagement.

Responsibilities

• Deliver and manage mechanical engineering studies from concept through to detailed design, manufacture, construction, commissioning, and operations support.
• Produce and review technical deliverables, including reports, flow diagrams, P&IDs, drawings, layouts, hazard assessments, and specifications.
• Oversee and provide input into supply chain documentation, ensuring compliance with requirements.
• Undertake studies and develop solutions for handling systems, powder processing, glovebox operations, dismantling, and compaction technologies in high–hazard environments.
• Resolve technical queries with suppliers and ensure design intent is met.
• Act as a key technical contact for stakeholders and support the development of junior engineers.

Skills & Attributes

• Strong communication and stakeholder management skills.
• Proactive and solution–focused, with the ability to work independently.
• Organised and adaptable, able to manage competing deadlines.
• Leadership qualities with an interest in mentoring others.

Qualifications & Experience

• Degree in Mechanical Engineering (or equivalent).
• Chartered Engineer (IMechE) or working towards chartership.
• 7–8+ years\' mechanical engineering experience in the nuclear sector (essential).
• Knowledge of design processes (concept, FEED, detailed design, supply chain review, commissioning).
• Experience delivering mechanical studies covering handling systems, powder processes, and glovebox operations, with consideration for manufacture, testing, operation, and decommissioning.
• Experience working in regulated, multi–disciplinary teams.
• All candidates must be eligible to obtain Security Clearance.

Benefits

• 25 days annual leave plus bank holidays / additional 1 day per year added (capped at 5)
• Bonus scheme
• Private medical insurance
• Non–contribution pension scheme
• Free on–site parking

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Company information:
This Permanent vacancy is being advertised by Rullion Ltd
Since 1978, Rullion has been securing exceptional candidates for a range of clients; from large well–known brands, to SMEs and start–ups. As a family–owned business, Rullion\'s approach is credible and honest, focused on building long–lasting relationships with both clients and candidates.

Rullion is a forward–thinking recruitment company that specialises in providing a wide range of talent consultancy services to a diverse client base; from small start–ups to large household names.
We celebrate and support diversity and are committed to ensuring equal opportunities for both employees and applicants.