Critical Systems Technician Iii, Hvac

Join a dedicated team in Abilene, TX as a Critical Systems Technician III, HVAC, where you will play a key role in maintaining and supporting mission‑critical mechanical systems for data center operations. This position offers the opportunity to lead and mentor a team of technicians, ensuring the reliability and efficiency of essential HVAC systems. The ideal candidate will bring extensive hands‑on experience, technical expertise, and a commitment to operational excellence in a fast‑paced, high‑stakes environment.

• Serve as the lead technician for all mission‑critical mechanical services and maintenance under contract.
• Monitor and ensure compliance with contractual commitments related to mechanical systems.
• Provide guidance, leadership, and technical knowledge regarding the installation, service, maintenance, and operation of data center HVAC equipment.
• Independently perform preventive maintenance, troubleshooting, routine, and emergency repairs on a wide range of HVAC equipment, including air and water‑cooled chillers, centrifugal and screw package chillers, natural gas boilers, unit heaters, electric duct heaters, cooling towers, and various air distribution systems.
• Work with pneumatic, DDC, and variable frequency drive controls, as well as building automation software.
• Maintain, upgrade, and back up building automation systems as required.
• Supervise and mentor lower‑level technicians, supporting their technical development.
• Participate in on‑call rotations and respond to after‑hours assignments as needed.
• Perform additional duties as assigned by the supervisor.
• Maintain regular and reliable attendance.

• High school diploma or GED required.
• Completion of a basic air conditioning theory class.
• Minimum of 7 years of large commercial HVAC service experience required; 8 years preferred.
• Proficiency in the use of HVAC diagnostic tools and instruments.
• Experience with DDC, pneumatic, and variable frequency drive controls.
• Proficient in Microsoft Office or related software.
• Ability to pass any required client background checks or training.
• EPA Universal Certification, VA Journeyman HVAC license, and OSHA Certification are considered a plus.
• Valid driver’s license required.
• U.S. citizenship and ability to obtain security clearance preferred.
• Ability to lift and carry up to 50 pounds and perform physical tasks as required by the role.