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Contract

Critical Facilities Engineer

Apex Systems US
Dagenham
money-bag £30 - £42/hour
Posted: 14 September 2026 (Yesterday)
Closing date: 14 October 2026
Ref: 225605247

Ideal Candidate Profile

We''re seeking a hands-on Mechanical Engineer to support the operation and maintenance of critical cooling and water systems within a mission-critical environment.

Key Requirements:

  • Mechanical maintenance experience within Data Centres, Banking, Manufacturing, Industrial, Critical Facilities or Large Commercial environments.
  • Strong knowledge of:
    • Chillers
    • Cooling Towers
    • AHUs / FCUs
    • Pumps & Motors
    • Pressurisation Units
    • Plate Heat Exchangers
    • Domestic & LTHW/CHW Systems
    • Plant Rooms
  • Experience carrying out PPM and reactive maintenance.
  • Water Treatment and Water Hygiene experience.
  • Legionella / ACOP L8 knowledge highly desirable.
  • Experience using BMS systems for monitoring and fault investigation.
  • Fault-finding capability across mechanical building services infrastructure.
  • Experience working within permit-to-work and safety-critical environments.

Desirable:

  • Data Centre experience.
  • Critical environment experience.
  • Cooling tower testing and water treatment programmes.
  • F-Gas qualification.
  • Mechanical apprenticeship, NVQ, City & Guilds or equivalent qualification

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