They are seeking an experienced Mobile HVAC Engineer to support mission‑critical data centre environments. This role focuses on maintaining, troubleshooting, and optimising cooling systems that underpin 24/7 operations. You will work on live environments where uptime, resilience, and compliance are critical, carrying out both planned and reactive maintenance on essential cooling infrastructure across multiple sites.
Duties & Responsibilities
* Carry out planned preventative maintenance (PPM) and reactive works on:
* Specialist liquid‑to‑chip cooling systems (OEM training provided)
* Air- and water‑cooled chillers
* CRAC / CRAH units
* DX and chilled water systems
* Adiabatic and free‑cooling solutions
* Diagnose and rectify faults on live, critical systems without disruption
* Maintain N+1 / 2N redundancy and support failover testing
* Interface with BMS / DCIM systems to monitor alarms, trends, and performance
* Support commissioning, system flushing, structured startup, and balancing
* Support upgrades and system optimisation projects
* Participate in a call‑out rota supporting 24/7 operations
* Work safely under Permit to Work systems, including:
o RAMS
o Isolation and LOTO procedures
* Complete all service reports, compliance documentation, and fault logs accurately
* Ensure adherence to F‑Gas regulations and HSE standards
* Maintain high housekeeping standards in critical environments
* Liaise professionally with:
o Data centre operations teams
o Facilities managers
o Client representatives and contractors
o Equipment manufacturers
o Internal delivery teams
* Communicate faults, risks, and remedial actions clearly and concisely
Qualifications
* Relevant qualifications in Refrigeration & Air Conditioning (or equivalent)
* F‑Gas Category I (essential)
* Strong electrical knowledge (controls, panels, motors, inverters)
* Experience in data centres or other mission‑critical environments (e.g. hospitals, laboratories, critical manufacturing)
* Proven experience with chillers, CRAC/CRAH units, and redundant cooling systems
* Strong fault‑finding ability under SLA and uptime pressure
* Full UK Driving Licence
* CSCS / ECS card (or willingness to obtain)
Our client is a leading provider of data centre design, supply, build, and managed services, delivering integrated solutions to operators worldwide.
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