Lead Critical Facility HVAC Technician

Job Description

The Senior HVAC Technician is responsible for advanced operation, maintenance, troubleshooting, and repair of HVAC and mechanical systems supporting a mission-critical data center environment. This role provides technical leadership, supports system reliability and efficiency, and helps maintain continuous operation of critical cooling infrastructure.

The Senior HVAC Technician works closely with Controls, Chiller, Electrical, and site operations teams and serves as a subject-matter expert for HVAC-related activities, including troubleshooting, planned maintenance, system optimization, and incident response.

Essential Duties and Responsibilities

• Perform advanced preventive, predictive, and corrective maintenance on HVAC systems, including CRAH/CRAC units, AHUs, fan systems, pumps, chillers at a support level, VFDs, humidification systems, and associated mechanical equipment.
• Lead troubleshooting for complex HVAC, airflow, humidity, and thermal issues impacting data halls and support spaces.
• Monitor system performance, BAS/BMS alarms, trends, and environmental conditions to ensure thermal stability and system efficiency.
• Support seasonal changeovers, load transitions, operational adjustments, and system optimization initiatives.
• Execute all work in accordance with approved SOPs, MOPs, EOPs, safety requirements, and change-control processes.
• Serve as a technical escalation point for HVAC issues and provide guidance to junior technicians.
• Coordinate closely with Controls and Chiller teams to verify sequences of operation, setpoints, alarms, and system integration.
• Inspect mechanical systems, identify deficiencies, and recommend corrective actions, repairs, or capital improvements.
• Escort and oversee third-party contractors, OEMs, and vendors, ensuring compliance with site safety and operational requirements.
• Accurately document all work performed, deficiencies identified, corrective actions, and recommendations in the CMMS.
• Participate in incident response, root cause analysis, post-incident review, and continuous improvement initiatives.
• Maintain compliance with all safety, environmental, regulatory, and company policies.

Required Qualifications

• Minimum 7+ years of HVAC experience, preferably in mission-critical, data center, industrial, or large commercial environments.
• Strong working knowledge of commercial HVAC systems, chilled water systems, airflow management, humidity control, VFDs, pumps, and BAS/BMS interfaces.
• Ability to read and interpret mechanical drawings, P&IDs, wiring diagrams, sequences of operation, and technical documentation.
• Demonstrated ability to troubleshoot electrical, mechanical, and control-related HVAC issues.
• Experience working under SOPs, MOPs, EOPs, change control, and zero-impact work practices preferred.
• Strong leadership, communication, documentation, and shift handoff skills.
• High school diploma or equivalent required; technical or trade school preferred.

Preferred Certifications / Training

• EPA Universal Refrigerant Certification preferred
• OEM HVAC or CRAC/CRAH training preferred
• OSHA 10 or OSHA 30 preferred
• Data center or mission-critical operations training preferred
• BAS/BMS or controls training a plus

Physical Requirements

• Ability to lift up to 50 lbs.
• Ability to stand, walk, climb ladders, kneel, bend, and work in mechanical spaces for extended periods.
• Ability to work at heights and in varying environmental conditions.

Work Environment

• Mission-critical data center setting requiring strict adherence to procedures, safety, documentation, and attention to detail.
• Day shift, Monday-Friday; limited after-hours or emergency support may be required.

ABM Mission Critical Solutions supports some of the most advanced data center facilities in the industry. Our technicians operate in high-reliability environments with opportunities for long-term growth, advanced training, and technical leadership.

ABM (NYSE: ABM) is one of the world's largest providers of integrated facility, engineering, and infrastructure solutions. Every day, our over 100,000 team members deliver essential services that make spaces cleaner, safer, and efficient, enhancing the overall occupant experience. ABM serves a wide range of market sectors including commercial real estate, aviation, education, mission critical, and manufacturing and distribution. With over $8 billion in annual revenue and a blue-chip client base, ABM delivers innovative technologies and sustainable solutions that enhance facilities and empower clients to achieve their goals.

Committed to creating smarter, more connected spaces, ABM is investing in the future to meet evolving challenges and build a healthier, thriving world. ABM:
Driving possibility, together. ABM is an Equal Employment Opportunity (EEO) employer that does not discriminate on the basis of any trait or characteristic protected by applicable federal, state, or local law, including disability and protected veteran status. ABM is committed to working…