We are recruiting an experienced Air Conditioning Engineer to work on critical cooling environments, including data centres and other high-availability facilities. This is a technically focused role centred on air conditioning and close-control cooling systems, covering a mix of AHUs, DX systems, CRAC and CRAH units where system uptime is essential. Key responsibilities Service, maintenance and fault diagnosis of critical AC and close-control cooling systems Planned and reactive works on live, mission-critical sites Completion of service reports and compliance documentation Professional, safety-focused engagement on customer sites Salary & benefits £45,000 – £55,000 per annum Door-to-door travel pay Company vehicle (fully equipped) Company laptop and smartphone 25 days holiday plus bank holidays Pension scheme Requirements Strong background in air conditioning and critical cooling systems Experience with AHUs, DX plant, CRAC and CRAH units F-Gas certification and full UK driving licence NVQ in refrigeration & AC (Preferred not essential)