Data Centre Critical Facilities Technician, Data Centre Engineering Operations (DCEO)

Amazon; Greater London; Hybrid; GBP 32,000 - 46,000; Full time

Job summary

Amazon Data Services UK Limited seeks a Data Centre Critical Facilities Technician for the Data Centre Engineering Operations team. This role supports operation, monitoring and maintenance of electrical and mechanical infrastructure powering AWS cloud services, with 24/7 shift coverage and hands-on involvement in power distribution, generators, UPS and cooling systems.

You will perform planned and reactive maintenance, monitor alarms via BMS, assist fault-finding, and ensure accurate logs and

Qualifications

• High school or equivalent diploma is required.
• Hands-on experience with maintenance, inspections or troubleshooting on plant equipment is expected.
• NVQ Level 3 or equivalent in mechanical, electrical or mechatronics is preferred.

Responsibilities

• Perform planned preventive and reactive maintenance on electrical and mechanical infrastructure.
• Conduct routine plant inspections and equipment checks to ensure safe operation.
• Monitor alarms and system performance using Building Management Systems (BMS).
• Assist with fault finding and troubleshooting across power distribution and cooling equipment.
• Support testing of critical systems including diesel generators and UPS equipment.
• Supervise vendors performing maintenance or repair activities on site.
• Follow permit-to-work and safety procedures for all activities.
• Participate in incident response and assist with troubleshooting during incidents.
• Maintain accurate maintenance records and logs.
• Support generator tests and infrastructure failover exercises.

Skills

Preventive maintenance

Troubleshooting

Electrical systems

Mechanical systems

BMS monitoring

Education

High School Diploma

NVQ Level 3 (Mech/Electrical/Mechatronics)

Tools

Building Management System (BMS)

Job description

Data Centre Critical Facilities Technician, Data Centre Engineering Operations (DCEO)

Job ID: 10486377 | Amazon Data Services UK Limited

Amazon Web Services (AWS) is seeking a Critical Facilities Technician to join our Data Centre Engineering Operations (DCEO) team. In this role you will support the operation, monitoring and maintenance of the electrical and mechanical infrastructure that powers AWS cloud services. AWS data centres operate 24/7 and rely on highly reliable power and cooling systems. As a technician in this environment, you will perform hands‑on maintenance, equipment inspections, and troubleshooting to ensure infrastructure systems operate safely and reliably. You will work as part of a team responsible for maintaining mission‑critical equipment including power distribution systems, generators, UPS systems and cooling infrastructure. This role operates on a shift rotation supporting 24/7 data centre operations.

Key job 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

A day in the life

• 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

About the team

The Data Centre Engineering Operations (DCEO) team is responsible for maintaining the critical infrastructure that supports AWS data centres. Our technicians operate and maintain complex mechanical and electrical systems that provide reliable power and cooling for AWS cloud services. The team works in a highly operational, safety‑focused environment, where attention to detail and strong technical skills are essential to maintaining service availability.

Basic Qualifications

• High school or equivalent diploma
• Hands‑on experience performing maintenance, inspections or troubleshooting on plant equipment

Preferred Qualifications

• Experience in data center engineering
• High school or equivalent diploma, or NVQ Level 3 in Mechanical, Electrical or Mechatronics
• Experience in a data center or other critical environment
• Experience working with permit‑to‑work or safety management systems
• Strong troubleshooting and problem‑solving skills

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