Air Conditioning Engineer

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Mitie is seeking a Static Air Conditioning Engineer to work on the GSK site in Irvine. The role involves the planned and reactive maintenance of air conditioning and HVAC systems within a critical pharmaceutical environment. The engineer will be responsible for delivering high standards of service, ensuring compliance with site procedures, health & safety regulations, and statutory requirements.

• Carry out Planned Preventative Maintenance (PPMs) on air conditioning systems
• Diagnose faults and undertake effective fault finding
• Complete remedial and reactive maintenance works
• Maintain and service VRV and VRF systems, including split systems
• Ensure all works are completed safely and documented accurately
• Liaise with site management and clients to ensure minimal disruption to operations

• Proven experience working with VRV, VRF, and split air conditioning systems
• Strong background in PPMs, remedials, and fault finding
• Experience working in a static site environment (ideally within a regulated setting)
• Full UK driving licence required
• Relevant HVAC/AC qualifications required

• F-Gas Category 1 certification
• NVQ Level 2 or Level 3 in Air Conditioning & Refrigeration (or equivalent)
• Proven experience working as an Air Conditioning Engineer
• Strong PPM and fault‑finding experience across commercial systems
• Full UK driving licence

This role is ideal for a reliable and technically competent engineer looking for a stable, site‑based position within a high‑profile facility.

Our market‑leading offering provides you with benefits that suit your lifestyle. We have a virtual GP for you and your household, a Salary Finance scheme that allows you to access earned pay before payday, and a flexible lifestyle benefits platform, Choices. You can purchase up to five extra days’ holiday each year, critical illness insurance, dental treatment, and technology products. Additional perks include high street discounts, a cycle‑to‑work scheme, life cover up to four times your salary, enhanced pension contributions, a save‑as‑you‑earn scheme, and a Mitie Matching Share Plan with potential free shares.

We award employees with Mitie Stars, monthly cash prizes, and a top prize of £10,000. Progression is a priority – we offer a wide range of training and development resources.

We are committed to an inclusive recruitment process. If you have a disability or long‑term condition and need reasonable adjustments, please email Sadhna Jha at

Since 1987, Mitie’s 80,000 employees have been maintaining companies globally. We are the UK’s leading facilities management and professional services company, serving banks, critical government sites, hospitals and schools.

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