Robert Hurst are currently recruiting for an experienced Senior Air Conditioning & Refrigeration Engineer to join a well-established and growing building services contractor operating across Greater London. This is a mobile role, predominantly covering sites within the Inner M25. Engineers typically attend 1–2 sites per day, with 3–5 callouts depending on workload. The Role You will be responsible for: * Service, maintenance and inspection of AC, refrigeration & HVAC systems * Planned preventative maintenance (PPM) * Reactive fault finding and repairs * Working on AHUs, chillers, split systems & fan coil units * Small works, installations and refurbishment projects * Liaising with building maintenance teams * Completing service reports and maintaining accurate records * Assisting with general building maintenance tasks where required Requirements: * Proven experience in service, installation, PPM & reactive maintenance * Strong knowledge of chillers and refrigeration plant * F-Gas 2079 (Safe Handling of Refrigerants) – essential * Trade qualified AC / Refrigeration Engineer preferred * Good building services knowledge (basic electrical, mechanical & plumbing understanding) * Organised with good IT and reporting skills * Professi...