About Vantage Data Centers

Vantage Data Centers powers, cools, protects and connects the technology of the world’s well-known hyperscalers, cloud providers and large enterprises. Developing and operating across North America, EMEA and Asia Pacific, Vantage has evolved data center design in innovative ways to deliver dramatic gains in reliability, efficiency and sustainability in flexible environments that can scale as quickly as the market demands.

Site Operations Department

The Site Operations Department is responsible for the overall health of all mechanical and electrical systems, building maintenance, and performance of all data modules in our data centers.  The team is staffed 24 x 7 onsite with Critical Facility Engineers (CFEs)on each shift.  This team is the face of Vantage to our customers and the first line of defense regarding the uptime of our campus as well as the performance of our customer installations.  Using a Computerized Maintenance Management System (CMMS) to plan and track work needed, the Site Operations department performs all preventive and corrective maintenance.  Our culture expects and rewards team performance that engages directly with the customers and the facility infrastructure.  This is a team that does most of the actual work versus calling upon vendors.  As a result, we provide superior service that is faster and more cost effective.

Position Overview

We are looking for a Critical Cooling Systems Technician Level 3 who serves as a senior mechanical subject matter expert for mission-critical cooling infrastructure across the campus. This role performs advanced preventive, predictive, and corrective maintenance on large scale cooling systems and provides technical leadership to other technicians while ensuring all work is executed without risk to the critical load.

The successful candidate is highly experienced with 500 ton air cooled chillers, CRAHs, CDUs supporting direct to chip liquid cooling, DOAS units, pumps, hydronic piping networks, and rooftop equipment. This technician operates independently in live mechanical environments, mentors junior technicians, and plays a key role in troubleshooting, procedure quality, and system reliability.

If you understand how cooling failures impact data center uptime and have the experience to safely work on complex mechanical systems in high-risk environments, we want to hear from you.

Essential Job Functions

• Operates as a senior technician with minimal supervision

• Performs advanced maintenance and troubleshooting on critical cooling systems

• Provides technical guidance and mentorship to Level 1 and Level 2 technicians

• Ensures all work is performed in accordance with approved MOPs, SOPs, and EOPs

• Identifies system risks and escalates concerns to the Manager, Critical Cooling Systems

• Maintains a strong focus on safety, cleanliness, and operational discipline

Duties

• Perform preventive, predictive, and corrective maintenance on:

  • 500 ton air cooled chillers and associated control systems

  • CRAH units and airflow management components

  • CDUs and liquid cooling distribution systems to server equipment

  • DOAS units, rooftop units, and ventilation systems

  • Pumps, strainers, valves, expansion tanks, and hydronic piping systems

• Conduct detailed inspections, vibration checks, belt and coupling inspections, and water quality checks

• Troubleshoot mechanical, control, and performance issues across cooling systems

• Support chiller teardowns, tube cleaning, coil cleaning, and major component replacements

• Assist with trending, logging, and analyzing system performance data

• Review MOPs for accuracy and provide feedback for continuous improvement

• Support commissioning and turnover of new cooling infrastructure

• Perform vendor oversight during specialized maintenance activities

• Maintain detailed documentation of work performed in CMMS

• Train and mentor junior technicians on proper procedures and system knowledge

• Support emergency response and cooling system restoration efforts

Job Requirements

• 5 years (7+ years preferred) of hands-on experience maintaining large scale mechanical cooling systems in mission-critical or industrial environments

• Manufacturer training on chillers, CRAHs, or liquid cooling systems preferred

• OSHA, EPA, or mechanical safety certifications preferred

• Experience in hyperscale or large multi-building data center campuses preferred

• Deep knowledge of chilled water