M&E (Mechanical & Engineering) Technician

Location: Kent (Maidstone & Dartford)

CustodianDC is a growing provider of secure, resilient colocation and critical data centre services, supporting customers across the UK and internationally.

This is an exciting opportunity for a Mechanical and Electrical Technician to work in a mission-critical environment where you'll help maintain the electrical and mechanical infrastructure that keeps our data centres operating safely, efficiently and around the clock.

Working across our Maidstone and Dartford sites under our Senior Facilities Manager and Technical Director, you'll carry out planned and reactive maintenance on critical electrical and mechanical infrastructure, ensuring maximum uptime and reliability within a high-availability environment.

Key Responsibilities

• Respond to reactive breakdown calls within agreed SLA timescales, minimising any risk to uptime.
• Maintain, fault-find, and repair modular UPS systems, diagnosing power quality issues across critical power infrastructure, escalate any concerns or issues to the Senior Facilities Manager.
• Carry out risk-focused planned maintenance on critical M&E plant, including generators, switchgear, water treatment plant and distribution systems, escalate any concerns or issues to the Senior Facilities Manager.
• Monitor and maintain N+1/redundant systems to protect data hall availability.
• Act as first responder for emergencies within the data centre, escalating urgent issues in line with critical incident procedures.
• Manage reactive Helpdesk tickets and keep all maintenance documentation and logs current and audit ready.
• Carry out site surveys and prepare method statements and risk assessments for works in live environments.
• Install and upgrade plant equipment, working confidently from technical and schematic drawings.
• Monitor environmental conditions (temperature, humidity) and equipment loading across the data hall and plant rooms.
• Follow strict change control, financial, and health & safety processes at all times.
• Write up incident reports and root cause analyses following any system outages, supporting continuous improvement, escalate any concerns or issues to the Senior Facilities Manager.