Critical Mechanical Shift Engineer – £52,000 – Essex

Critical MechanicalShift Engineer – £52,000 – Essex
Location: Essex
Salary: £52,000
Hours: Continental Shift Pattern (Days & Nights)

We are currently recruiting for an experienced CriticalShift Engineer (Mechanical Bias) to join a leading facilities management provider supporting a mission‑critical data centre in Essex.

This is an outstanding opportunity to work within a high‑availability, critical environment where uptime, resilience, and operational excellence are paramount. You’ll join a business that genuinely values its engineers — offering structured progression, continuous training, and strong leadership committed to long‑term career development within the data centre sector.

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• Carry out Planned Preventative Maintenance (PPM) and reactive maintenance across critical mechanical infrastructure.
  
• Respond rapidly to plant failures and critical alarms to ensure maximum uptime and resilience.
  
• Operate and maintain mechanical systems including CRAC/CRAH units, chillers, cooling towers, pumps, pressurisation units, expansion vessels, and associated pipework.
  
• Fault‑find on chilled water systems, HVAC plant, UPS cooling systems, and water treatment equipment.
  
• Monitor and operate Building Management Systems (BMS) and DCIM systems (Head End experience advantageous).
  
• Support critical environment compliance, including permit to work systems, risk assessments, and method statements.
  
• Conduct routine plant inspections, log readings, and ensure all statutory compliance tasks are completed.
  
• Work collaboratively with electrical engineers and site teams to maintain Tier‑level operational standards.
  
• Ensure all works are carried out in accordance with health & safety regulations and data centre best practices.
  

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• City & Guilds Level 3 (or equivalent) in Mechanical Engineering, HVAC, Plumbing & Heating, or related discipline.
  
• Minimum 3 years’ experience within critical environments (data centres, hospitals, banking, or high‑availability sites preferred).
  
• Strong mechanical fault‑finding and diagnostic ability within live plant rooms.
  
• Experience working on chilled water systems and large‑scale HVAC infrastructure.
  
• Understanding of critical cooling infrastructure and redundancy (N+1 / 2N configurations desirable).
  
• Positive, proactive approach with the ability to remain calm under pressure.
  

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• £52,000 Salary
  
• Continental shift pattern (work‑life balance built into rota)
  
• Annual leave + bank holidays
  
• Free on‑site parking
  
• Company pension & private healthcare
  
• Industry‑leading data centre training and career development
  
• Clear progression pathway into Senior / Lead Engineer roles
  
• Long‑term, stable contract within a high‑profile critical facility
  
• Supportive and technically driven working environment
  

Ready to take the next step into the data centre sector — or further develop your critical environment experience?