Role Purpose

To provide specialist Ventilation technical engineering support and investigative expertise in support of the Sellafield Ventilation Technical Specialist Group, an Enterprise-wide Ventilation specialist team that is responsible for Engineering support activities to the facility. The Engineer develops and maintains expertise on ventilation equipment and uses this knowledge to ensure that the overall performance, safety, condition and associated documentation of assigned equipment are maintained to a high standard. You must have the ability to work under pressure and remain decisive.

Principal Accountabilities

• To provide technical support & investigative expertise in support of new and existing ventilation systems.
• To undertake ventilation asset condition and system health performance inspections, in line with the ventilation asset maintenance/management inspection programme.
• Provide ventilation and HEPA filter commissioning support service to the Sellafield site.
• Providing expertise to ensure ventilation systems are fit for purpose and meet current standards.
• Working closely with Plant & Reliability Engineers from across the business to manage the ventilation assets efficiently and effectively.
• Follow the company Standards & Expectations.
• Provide a professional service to all customers.
• Maintain compliance with all site safety rules, procedures & instructions.
• Ensure safety is maintained through appropriate training.

Knowledge & Experience

• Higher level qualification or equivalent training/experience in an engineering/maintenance discipline.
• Experience of working at height and in confined spaces.
• SC (Security Check) level Security Clearance, or the ability to achieve.
• Chartered/Incorporated Engineer status or potential to achieve accreditation to an appropriate professional institute within the mechanical engineering field.
• Experience of coaching and developing others.

Essential Skills

• Higher level qualification or equivalent training/experience in an engineering/maintenance discipline.
• Demonstrable experience of working in a mechanical/ventilation engineering environment including experience and provision of technical support & investigative expertise in support of new and existing nuclear or industrial mechanical/ventilation systems and equipment.
• Demonstrable experience of acting as a subject matter expert for both internal and external stakeholders for mechanical/ventilation equipment.
• Evidence of undertaking mechanical/ventilation asset inspections and system performance checks in line with an engineering or maintenance programme, ensuring / improving plant and equipment reliability and availability.
• Experience of producing written reports and populate test sheets using standard IT software packages.

Desirable Skills

• Chartered/Incorporated Engineer status or potential to achieve accreditation to an appropriate professional institute within the mechanical engineering field.
• SC (Security Check) level Security Clearance, or the ability to achieve.
• Demonstrable evidence of ventilation flow measurement techniques & associated test equipment.
• Have experience of providing ventilation commissioning support on new or modified ventilation systems, including undertaking, or having a sound knowledge of proportional balancing of ventilation supply and extract systems.
• Experience of working safely at heights and within confined spaces.
• Local Exhaust Ventilation (LEV) testing and reporting (P601 Training)
• CSA Training (Level A, B or C)

Additional Information

• Open VN
• Number of Vacancies: 1
• Contact/s: David Williamson

The interviews for this vacancy are expected to take place Friday 5th June 2026.

ASW’s may have the right to apply for internal Sellafield Ltd vacancies. Please note if you are an Agency Supplied Worker you are required to attach evidence of all qualifications obtained to support your application. We require a minimum of A*-C (9-4) GCSE in English Language, Maths & Science/IT or equivalent / higher qualification.

If you choose to apply for this role and your application is shortlisted by the hiring manager, you will be invited to a competency based interview. The competency’s will be issued with interview invites.

Please see link to the competency framework for further information:
https://slportal.ssa-intra.net/pub/SC001/00027/Competency%20Framework/Forms/AllItems.aspx

If your technical competency is not in the above framework, please refer to the profession’s share point page for further information.

Sellafield Ltd are recognised as a Disability Confident Employer (Level 3). Disability Confident employers offer an interview to disabled applicants that meet the minimum criteria for a vacancy. Sellafield Ltd define the minimum criteria as the ‘essential skills’ which are listed on the vacancy notice. Whilst completing your application form, you will be able to indicate if you wish to be considered under the disability confident scheme. If you would prefer to discuss this directly with us, please contact the GBS Recruitment team on recruitment@sellafieldcloud.co.uk

Please ensure that you save a copy of this advert for future reference if you make an application for this role.

The closing date for this vacancy is Monday 18th May 2026.