Ventilation Engineer

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

Qualifications
Knowledge & Experience

Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements.
Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.

Job Description

Ventilation Engineer – Technical Specialist Support

Provide expert engineering support and investigative expertise 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.

Key Responsibilities

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

Qualifications

Knowledge & Experience

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

Essential Skills

• Experience coaching & developing others
• Strong background in mechanical/ventilation engineering
• Experience providing technical support & investigative expertise for industrial or nuclear ventilation systems
• Subject Matter Expert (SME) experience for internal & external stakeholders
• Skilled in inspections, system performance checks & improving equipment reliability
• Confident producing reports & using standard IT/software packages

Desirable Skills

• Ventilation flow measurement & test equipment experience
• Ventilation commissioning & proportional balancing knowledge
• Safe working experience at height & in confined spaces
• LEV Testing & Reporting (P601)
• CSA Training (Level A, B or C)

Additional Information

Whilst we encourage applications from all nationalities, Assystem within the UK are subject to security and export control restrictions due to the nature of work to be undertaken. These restrictions mean that factors including your nationality, any previous nationalities you have held, and/or your place of birth may limit those roles that you can perform for the organisation.

We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.