Critical Facility Technician (HVAC/Mechanical)

The Critical Facilities Technician (CFT) is responsible for self-performing preventive and corrective maintenance on mission-critical mechanical and HVAC systems supporting a high-reliability data center environment. This role focuses on planned maintenance (PMs) with occasional emergency response, ensuring infrastructure reliability, safety, and compliance.

This position is hands-on and task-driven, with no remote system monitoring or facility rounds. Technicians work from a monthly PM schedule and complete maintenance activities in-house.

  • Perform planned preventive maintenance (PMs) and unplanned corrective maintenance on HVAC and mechanical systems
  • Maintain and service equipment including chillers, cooling systems, water heaters, motors, pumps, and VFDs
  • Execute monthly, quarterly, semi-annual, and annual maintenance schedules
  • Respond to break-fix situations and urgent facility needs
  • Complete work orders and documentation using CMMS and/or paper tickets
  • Safely use tools, materials, and equipment to complete assigned tasks
  • Escort and coordinate with subcontractors as required
  • Follow all safety protocols including PPE and Lockout/Tagout procedures
  • Participate in training and demonstrate willingness to learn additional systems

Required Qualifications

  • Minimum 3 years of HVAC, mechanical, or related technical experience
  • Experience in commercial or residential HVAC/mechanical environments
  • Working knowledge of refrigerants, mechanical and electrical systems, motors, and VFDs
  • High School Diploma or GED
  • Valid driver’s license (company vehicle use required)

Preferred Qualifications

  • 5 plus years of HVAC or mechanical experience
  • Experience in data centers or critical facilities
  • Technical certifications or trade school training
  • Strong mechanical and electrical aptitude

Physical & Work Environment Requirements

  • Ability to lift 50–75 lbs
  • Ability to climb ladders and work at heights
  • Comfortable working in mechanical rooms, rooftops, and industrial environments
  • Willingness to work overtime, weekends, or after-hours as required


Basic Qualifications:

• Must be 18 years of age or older
• Must possess a valid, unexpired driver's license
• Must possess journeyman HVAC license in the state, county or city jurisdiction in which work will be performed
• Three (3) years prior experience required as an HVAC technician

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: 12P, EM, 1141, 3E0X2

Location: San Antonio, TX
Schedule: Monday–Friday, 7:00 AM – 3:30 PM (Overtime as needed)
Pay Range: $28–$35/hour (based on experience)

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