Critical Facilities HVAC Technician — Day Shift

The Critical Facilities HVAC Technician -is responsible for operating, maintaining, troubleshooting, and repairing HVAC and mechanical systems supporting continuous mission-critical data center operations. This role provides after-hours technical coverage to ensure system reliability, rapid response to alarms, and seamless handoff between shifts.
The technician works independently while coordinating closely with site operations, Controls, Chiller, Electrical, and on-call support teams.

Pay: $35.00-$45.00/hour

The pay listed is the hourly range or the hourly rate for this position. A specific offer will vary based on applicant's experience, skills, abilities, geographic location, and alignment with market data.

Benefit Information: ABM offers a comprehensive benefits package. For information about ABM's benefits, visit ABM Employee Benefits | Front Line Team Members

A good job for someone just entering the workforce or returning to the workforce with limited experience and education. ABM is a military and veteran friendly employer, veterans and candidates with military experience encouraged to apply. Military Occupational Specialty Code: 91E, 91C, EM, HT, MK, DC, 1161, 1341, 3E1X1

• Perform preventive, predictive, and corrective maintenance on HVAC systems, including CRAH/CRAC units, AHUs, condensers, pumps, VFDs, humidification systems, and associated mechanical equipment.
• Monitor system performance, BAS/BMS alarms, trends, and environmental conditions during second shift to ensure thermal stability and environmental compliance.
• Respond to HVAC alarms, alerts, and service requests, initiating escalation procedures as required.
• Troubleshoot mechanical, electrical, and basic controls issues impacting HVAC performance and reliability.
• Execute approved work in accordance with SOPs, MOPs, EOPs, safety procedures, and change-control requirements to prevent impact to critical operations.
• Support scheduled maintenance activities and planned work occurring during second-shift maintenance windows.
• Perform inspections, identify deficiencies, and document corrective actions or follow-up needs.
• Coordinate with first-shift teams to ensure accurate turnover of system status, issues, and ongoing work.
• Escort and oversee third-party vendors performing after-hours maintenance or repairs.
• Accurately document all work performed in the CMMS, including findings, repairs, recommendations, and escalation details.
• Maintain strict adherence to all safety, environmental, and mission-critical procedures.

Required Qualifications

• Minimum 3-5 years of commercial or industrial HVAC experience; data center or mission-critical experience preferred.
• Working knowledge of chilled water systems, airflow management, humidity control, HVAC controls interfaces, VFDs, and pumps.
• Ability to read and interpret mechanical drawings, wiring diagrams, and sequences of operation.
• Strong troubleshooting skills and ability to work independently during off-peak hours.
• Experience following SOPs, MOPs, EOPs, and shift handoff procedures preferred.
• Good written and verbal communication skills, including clear shift documentation and escalation.
• 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
• BAS/BMS or controls familiarity, such as Niagara, Siemens, Schneider, or similar, a plus

Physical Requirements

• Ability to lift up to 50 lbs.
• Ability to stand, walk, kneel, bend, and work in mechanical rooms for extended periods.
• Ability to climb ladders and work at heights as required.

Work Environment

• Mission-critical data center environment requiring high attention to detail, procedural discipline, safety awareness, and reliable shift documentation.
• Second-shift coverage; occasional extended hours or emergency response may be required.

Why ABM

ABM Mission Critical Solutions supports advanced data center facilities. Our technicians work in high-reliability environments with strong safety culture, advanced systems, and opportunities for technical growth.

About Us


ABM (NYSE: ABM) is one of the world's largest providers of facility services and solutions. A driving force for a cleaner, healthier, and more sustainable world, ABM provides essential services and forward-looking performance solutions that improve the spaces and places that matter most. From curbside to rooftop, ABM's comprehensive services include janitorial, engineering, parking, electrical and lighting, energy and electric vehicle charging infrastructure, HVAC and mechanical, landscape and turf, and mission critical solutions. ABM serves a wide range of industries – from commercial office buildings to universities, airports, hospitals, data centers, manufacturing plants and distribution centers, entertainment venues and more. Founded in 1909, ABM serves over 20,000 clients, with annualized revenue approaching $8 billion and more than 100,000 team members in 350+ offices throughout the United States, United Kingdom, Republic of Ireland, and other international locations. For more information, visit


ABM is proud to be an Equal Opportunity Employer qualified applicants without regard race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran or any other protected factor under federal, state, or local law. ABM is committed to working with and providing reasonable accommodation to individuals with disabilities. If you have a disability and need assistance in completing the employment application, please call View phone number on jobs2careers.com. We will provide you with assistance and make a determination on your request for reasonable accommodation on a case-by-case basis.


ABM participates in the U.S. Department of Homeland Security E-Verify program. E-Verify is an internet-based system used to electronically confirm employment eligibility.


ABM is a military-friendly company proudly employing thousands of men and women who have served in the U.S. military. With ABM, you'll have access to a world-class training program and ample opportunities to use the skills you developed while serving our country. Whether you're looking for a frontline or professional position, you can find post-military career opportunities across ABM.
ABM directs all applicants to apply at ABM does not accept unsolicited resumes.