24/7 Critical Facilities Technician – Data Center Ops

Amazon; Greater London; On-site; GBP 36,000 - 48,000; Full time

Job summary

Amazon Web Services (AWS) is seeking a Critical Facilities Technician to join the Data Centre Engineering Operations team. You will maintain electrical and mechanical infrastructure powering AWS cloud services in a 24/7 data centre environment.

Responsibilities include preventative and reactive maintenance, fault finding, and monitoring via BMS, while working a shift-based schedule on site. The role requires strong safety and operational discipline.

Qualifications

• Experience in systems engineering, site reliability engineering or comparable field.
• Hands-on maintenance of electrical and mechanical infrastructure.
• Ability to follow safety procedures and operational standards.

Responsibilities

• Perform planned preventative maintenance (PPM) and reactive maintenance on electrical and mechanical infrastructure systems.
• Conduct routine plant inspections and equipment checks.
• Monitor alarms and system performance using Building Management Systems (BMS).
• 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, switch gear and cooling equipment.
• Supervise vendors performing maintenance or repair activities on site.
• Maintain accurate maintenance records and operational logs.

Skills

Systems engineering

Site reliability

Electrical infrastructure

Mechanical systems

Education

Bachelor's degree in Electrical/Mechanical Engineering

Tools

Power distribution equipment

Generators

UPS systems

HVAC / cooling systems

Job description

Amazon Web Services (AWS) is seeking a Critical Facilities Technician to join the Data Centre Engineering Operations team. You will maintain electrical and mechanical infrastructure powering AWS cloud services in a 24/7 data centre environment.

Responsibilities include preventative and reactive maintenance, fault finding, and monitoring via BMS, while working a shift-based schedule on site. The role requires strong safety and operational discipline.