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Mechanical Plant Engineer

Job in Seascale, Cumbria County, CA20, England, UK
Listing for: United Kingdom National Nuclear Laboratory
Full Time position
Listed on 2026-10-23
Job specializations:
  • Engineering
    Mechanical Engineer
Job Description & How to Apply Below
Job Introduction

Job Description for Mechanical Plant Engineer:

There’s never been a more exciting time to be part of the nuclear sector. New opportunities are being created all the time. At UKNNL, you’ll be in the ideal place to capitalise on this momentum, face new challenges and develop a long, successful and meaningful career.

We’re an organisation that’s here to experiment and push the limits of what’s possible. So, if you’re keen to excel in your chosen field, this is the place to do it. Because at UKNNL, anything is possible.

The Mechanical Plant Engineer will report to the Engineering Manager, they shall provide assurance that all Mechanical maintenance activities are being undertaken in a safe and compliant manner, to meet all requirements of the Nuclear Site Licence and all Regulatory and Legislative purposes. The ideal candidate will be experienced in working in a regulatory capacity; detail oriented and is able to work to stringent deadlines.

Main Responsibilities for Mechanical Plant Engineer:

Responsible for ensuring compliance to the relevant sites engineering procedures associated with disciplined operations and maintenance.

Responsible for constantly challenging the mechanical maintenance processes on plant and ensuring plant is operated and maintained to appropriate standards.

Primary interface with Design team on mechanical changes to plant, including reviewing design change packages and installation and testing procedures.

Responsible for reviewing of mechanical equipment parameters, trend analysis and improvements of plant, not only by trending but also industry wide best practice information. Provide advice on ageing plant (mechanical) and carry out appropriate condition assessment techniques to support UKNNL’s Asset Care program.

Responsible for undertaking small scale Infrastructure improvement projects. Responsible for undertaking regular self-audits and task observations within their area of responsibility ensuring EHSS&Q standards are being maintained according to set procedures.

Attend any forums (internal or external) as requested to keep abreast of best practices around other UKNNL Laboratories, responsible for sharing and implementing any learning.

Assist the Engineering Manager in delivering the company values, they shall be expected to maintain a forward vision to develop and implement the best solutions in the best interest of the business.

Provide assurance that all events or incidents within their area of responsibility are investigated thoroughly; ensure appropriate corrective actions have been discharged in a timely manner throughout the lifecycle of the event.

Assist with the coaching and mentoring of the Engineering team as and when required.

Assist in the delivery of maintenance and breakdown tasks through task supervision and SSoW Originator roles as required.

Essential Criteria for Mechanical Plant Engineer:

Degree Qualified (mechanical discipline) or HND in an equivalent discipline. Relevant experience may be considered in lieu of stated qualification.

Strong communications skills, ability to communicate key information with customers, suppliers and stakeholders.

Ability to demonstrate conservative decision making, even in pressure situations.

Demonstrable knowledge of operational & maintenance requirements.

Evidence of self-motivation with demonstrable levels of drive, energy and resilience.

Ability to interface on a technical level with Design and Capability teams. Required to become PMP Manager. Requirement to become appointed as Sub Contractor Supervisor, task supervisor and SSoW Originator.

Lead SQEP for Maintenance training packs for area of responsibility.

Ability to obtain SC level security clearance (this includes but is not limited to identity,…
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