Data Center Critical Facilities Technician

Amazon Web Services (AWS); Hemel Hempstead; On-site; GBP 35,000 - 48,000; Full time

Job summary

Amazon Data Services UK Limited is seeking a Critical Facilities Technician to support the operation, monitoring and maintenance of electrical and mechanical infrastructure for AWS cloud services. The role involves working 24/7 in a data centre environment, performing hands-on maintenance, inspections and troubleshooting on power and cooling systems.

You will monitor alarms via BMS, assist with fault finding, supervise on-site vendors, and maintain detailed logs while following strict

Qualifications

• High school or equivalent diploma.
• Experience working with electrical or mechanical infrastructure systems.
• Hands-on experience performing maintenance, inspections or troubleshooting on plant equipment.
• Willingness to work in a shift-based environment supporting 24/7 operations.

Responsibilities

• Perform planned preventative maintenance (PPM) and reactive maintenance on electrical and mechanical infrastructure systems.
• Conduct routine plant inspections and equipment checks to ensure systems are operating correctly.
• Monitor alarms and system performance using Building Management Systems (BMS) and other monitoring tools.
• Assist with fault finding and troubleshooting across infrastructure systems including power distribution and cooling equipment.
• Support operation and testing of critical systems including diesel generators, UPS systems, switchgear and cooling equipment.
• Supervise specialist vendors performing maintenance or repair activities on site.
• Follow permit-to-work and safety procedures for all maintenance and operational activities.
• Participate in incident response and support troubleshooting during infrastructure events.
• Maintain accurate maintenance records and operational logs.
• Support testing activities including generator tests and infrastructure failover exercises.
• Performing daily plant inspections across electrical and mechanical infrastructure.
• Monitoring alarms and system status through the Building Management System (BMS).
• Responding to infrastructure alerts and assisting with initial troubleshooting.
• Carrying out planned preventative maintenance tasks on site equipment.
• Supporting generator tests and infrastructure system checks.
• Supervising vendors performing maintenance activities.
• Completing shift logs, plant status reports and operational handovers.

Skills

Electrical systems

Mechanical systems

Troubleshooting

Shift work

Safety procedures

Education

High school diploma

Tools

Building Management Systems (BMS)

Job description

Amazon Data Services UK Limited is seeking a Critical Facilities Technician to support the operation, monitoring and maintenance of electrical and mechanical infrastructure for AWS cloud services. The role involves working 24/7 in a data centre environment, performing hands-on maintenance, inspections and troubleshooting on power and cooling systems.

You will monitor alarms via BMS, assist with fault finding, supervise on-site vendors, and maintain detailed logs while following strict