Mechanical and Electrical Technician

About the role

Custodian Data Centres is seeking a Mechanical and Electrical Technician to support its high‑availability data centre sites in Maidstone and Dartford. You will work under the Senior Facilities Manager and Technical Director to keep critical power and mechanical plant operating safely and reliably 24/7.

Key responsibilities

• Respond to reactive breakdown calls within agreed SLA timescales.
• Maintain, fault‑find and repair modular UPS systems and diagnose power‑quality issues.
• Carry out planned maintenance on generators, switchgear, water‑treatment plant and distribution systems.
• Monitor and maintain N+1/redundant systems to protect data‑hall availability.
• Act as first responder for emergencies and follow critical incident procedures.
• Manage Helpdesk tickets and keep maintenance documentation audit‑ready.
• Perform site surveys, prepare method statements and risk assessments for live‑environment work.
• Install and upgrade plant equipment using technical and schematic drawings.
• Monitor environmental conditions and equipment loading across data halls.
• Follow change‑control, financial and health‑and‑safety processes and produce incident reports.

Required profile

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

Required skills

• 18th Edition Wiring Regulations
• UPS systems maintenance
• Power quality analysis
• Generators and switchgear
• Water‑treatment and distribution systems
• Building Management Systems (BMS)
• HVAC, chilled water circuits, CRAC/CRAH units, chilled beams
• CDM regulations
• COSHH risk assessments
• IOSH health‑and‑safety knowledge

What we offer

• Competitive salary range
• Opportunity to work in a mission‑critical, fast‑growing data‑centre environment
• Professional development under senior technical leadership