Nuclear Ventilation Engineer - Technical Specialist

Assystem; Warrington; On-site; GBP 45,000 - 65,000; Full time

Job summary

Assystem UK seeks a Ventilation Engineer – Technical Specialist Support to provide expert engineering support for Sellafield’s Ventilation Technical Specialist Group. Maintain high standards of safety, performance, reliability, and documentation across critical ventilation systems — while staying calm, decisive, and effective under pressure.

You will deliver technical support for new and existing ventilation systems, carry out asset condition inspections, support commissioning, ensure

Qualifications

• Engineering or maintenance qualifications (or equivalent experience).
• Experience with working at height and in confined spaces.
• SC Security Clearance (or ability to obtain).
• Chartered/Incorporated Engineer status — or working towards it.

Responsibilities

• Deliver technical support for new and existing ventilation systems.
• Carry out ventilation asset condition and system health inspections.
• Support ventilation and HEPA filter commissioning across site.
• Ensure systems are compliant, fit for purpose and meet current standards.
• Collaborate with Plant & Reliability Engineers to optimise assets.
• Follow company standards, safety rules and procedures.
• Provide a professional, customer-focused service.
• Maintain safety through ongoing training and compliance.

Skills

Mechanical engineering

Ventilation engineering

Technical support

SME experience

Report writing

Inspections

Education

Engineering qualification or equivalent

Tools

MS Office

Job description

Assystem UK seeks a Ventilation Engineer – Technical Specialist Support to provide expert engineering support for Sellafield’s Ventilation Technical Specialist Group. Maintain high standards of safety, performance, reliability, and documentation across critical ventilation systems — while staying calm, decisive, and effective under pressure.

You will deliver technical support for new and existing ventilation systems, carry out asset condition inspections, support commissioning, ensure