Critical Shift Technician

Construction, Property and Engineering; Watford; On-site; GBP 35,000 - 50,000; Full time

Job summary

A leading company in construction and engineering is seeking a Critical Shift Maintenance Technician to ensure the safe operation of MEP systems in critical environments. The role requires hands-on maintenance skills and experience in high-pressure situations, supporting essential infrastructure like data centres and trading floors.

Qualifications

• Qualified in Electrical or Mechanical Engineering.
• 18th Edition preferred for electrical candidates.
• Experience in critical environments like data centres.

Responsibilities

• Perform reactive and planned preventative maintenance on M&E systems.
• Monitor and maintain building systems including HVAC and electrical distribution.
• Respond to faults and alarms with urgency.

Skills

Fault finding

HVAC systems

Plumbing

Electrical knowledge

Mechanical knowledge

IT skills

Education

City & Guilds / NVQ / Apprenticeship in Electrical or Mechanical Engineering

Tools

CAFM systems

Job description

Randstad are hiring a Critical Shift Maintenance Technician to join a high-performing engineering team on a mission-critical site. You'll be ensuring the safe and efficient operation of mechanical, electrical, and plumbing (MEP) systems across a 24/7 operation supporting critical infrastructure such as data centres, trading floors, or financial hubs.

This is a hands-on, front-line role for a dependable and experienced engineer with a proactive approach and excellent fault-finding skills.

Key Responsibilities:

• Perform reactive and planned preventative maintenance (PPM) on M&E systems in a live critical environment

• Monitor, operate, and maintain building systems including:

  • LV Electrical Distribution

  • Generators, UPS & Emergency Lighting

  • HVAC & BMS Systems

  • AHUs, FCUs, Pumps, Motors & Valves

  • Pressurisation & Expansion Vessels

  • Chillers & CRAC units

  • Hot and Cold-Water Systems (including L8 tasks)

• Carry out plumbing and basic fabric repairs, ensuring compliance with relevant legislation

• Respond to faults and alarms with urgency and professionalism to maintain uptime

• Complete shift logs, reports, and compliance records accurately

• Support building audits, inspections and emergency response procedures

• Liaise with control rooms, clients, and subcontractors effectively

• Follow risk assessments, method statements, and H&S policies at all times

Candidate Requirements:

• Qualified in Electrical or Mechanical Engineering (City & Guilds / NVQ / Apprenticeship)

• 18th Edition (Electrical candidates) preferred

• Experience in critical environments (data centres, hospitals, trading floors, etc.)

• Strong working knowledge of:

  • HVAC systems

  • Electrical and mechanical fault finding

  • Plumbing and water systems (L8 awareness)

• Ability to remain calm under pressure and respond to technical emergencies

• Good IT and reporting skills (e.g., CAFM systems)

Randstad CPE values diversity and promotes equality. No terminology in this advert is intended to discriminate against any of the protected characteristics that fall under the Equality Act 2010. We encourage and welcome applications from all sections of society and are more than happy to discuss reasonable adjustments and/or additional arrangements as required to support your application.

Candidates must be eligible to live and work in the UK.

For the purposes of the Conduct Regulations 2003, when advertising permanent vacancies we are acting as an Employment Agency, and when advertising temporary/contract vacancies we are acting as an Employment Business.