Critical Systems Technician III, HVAC
Company: Orion Talent
Job Ref: # 3728091
Date Posted: 7/9/2026 12:00:00 AM
City, State: Tempe, AZ
Salary: $26 - $39
Description
Go to end ⇓Must-Have Skills, Experience, and Education:
- High School Diploma or GED required.
- Minimum 7 years of commercial HVAC service experience (8+ years preferred).
- Successful completion of basic air conditioning theory coursework.
- Strong knowledge of HVAC diagnostic tools and testing equipment.
- Experience with:
- DDC controls
- Pneumatic controls
- Variable Frequency Drives (VFDs)
- EPA Universal Refrigerant Certification (required).
- OSHA Certification.
- U.S. Citizen required.
- Ability to satisfy customer background screening requirements.
- Proficient with Microsoft Office or similar software.
- Ability to lift up to 50 pounds and work safely in commercial mechanical environments.
Requirements:
- Perform advanced preventive maintenance, troubleshooting, repairs, and emergency service on mission-critical HVAC systems.
- Service and maintain:
- Air- and water-cooled reciprocating chillers
- Centrifugal and screw chillers
- Natural gas boilers and unit heaters
- Electric duct heaters
- Cooling towers
- HVAC air distribution systems (AHUs, FCUs, fans, etc.)
- Water pumps and associated mechanical equipment
- Troubleshoot DDC, pneumatic, and VFD control systems.
- Maintain, upgrade, and back up Building Automation System (BAS) software.
- Respond to after-hours service calls and participate in on-call rotation.
- Mentor and provide technical guidance to junior HVAC technicians.
- Complete assigned documentation and maintain regular attendance.
- Perform additional duties as assigned.
Nice-to-Have Skills, Experience, and Education:
- Active Journeyman HVAC License (job description references Virginia license).
- Ability to obtain a security clearance.
- Military HVAC, utilities, or facilities maintenance experience.
- Experience supporting mission-critical facilities or data centers.
- Strong commercial chiller and central plant experience.
- Experience with Building Automation Systems (BAS).























