M&E (Mechanical & Engineering) Technician

Custodian Data Centres; Dartford; On-site; GBP 28,000 - 36,000; Full time

Benefits offered by this job

Private Healthcare

Medicash

Career development

Job summary

CustodianDC is a growing provider of secure, resilient colocation and critical data centre services, supporting customers across the UK and internationally. We are seeking a Mechanical and Electrical Technician to maintain electrical and mechanical infrastructure in Maidstone and Dartford, ensuring uptime in a mission-critical data centre environment.

You will work across Maidstone and Dartford sites under the Senior Facilities Manager and Technical Director, performing planned and reactive

Qualifications

• 18th Edition Wiring Regulations qualification.
• Experience in data centre, critical environment, or high-availability facility.
• Excellent communication and customer-focused approach.

Responsibilities

• Respond to reactive breakdown calls within SLA targets.
• Maintain, fault‑find, and repair critical electrical and mechanical infrastructure.
• Carry out planned maintenance on M&E plant including generators and switchgear.
• Monitor environmental conditions and equipment loading.
• Write incident reports and conduct root cause analyses.
• Maintain maintenance documentation and audit logs.
• Liaise with Senior Facilities Manager and Technical Director.
• Conduct site surveys and prepare risk assessments.
• Follow change control and health & safety processes.
• Provide emergency response as first responder.

Skills

Electrical expertise

Communication skills

On-site liaison

Education

18th Edition Wiring Regulations

Tools

BMS

HVAC systems

Job description

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, escalating 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, escalating 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, escalating any concerns or issues to the Senior Facilities Manager.

Requirements

What We're Looking For

Essential

• 18th Edition Wiring Regulations qualification.
• Experience working within a data centre, critical environment or other high‑availability facility.

Desirable

• Working knowledge of BMS, HVAC systems, chilled water circuits, CRAC/CRAH units, and chilled beams.
• A good grasp of mechanical building services, alongside your electrical expertise.
• Understanding of CDM regulations and H&S procedures (COSHH, risk assessments, etc.).
• IOSH or NEBOSH qualification.
• Experience testing and inspecting electrical systems.
• Confidence with emergency response and critical incident protocols.
• Authorised Person status (e.g. AP15/AP12).
• Awareness of water hygiene requirements (L8).
• Great communication skills and a customer‑focused approach, comfortable liaising with clients on site.

Benefits

• Work within a critical, high‑profile data centre environment with real career development potential.
• Be part of a supportive, professional experienced engineering team.
• Competitive salary and benefits package including Private Healthcare and Medicash.
• Training opportunities to build your critical facilities expertise.