HVAC Service Technician - ODNA

Company Overview

Upchurch is a rapidly growing
, full-service building engineering company providing mechanical, plumbing, HVAC, and electrical services across the southeastern United States.
Founded in 1970 and headquartered in Horn Lake, MS, Upchurch has grown through both organic expansion and strategic acquisitions
, establishing a strong reputation for quality, reliability, and service excellence. We offer end-to-end solutions—from design and installation to ongoing maintenance and emergency support—helping clients maximize building performance, energy efficiency, and equipment lifespan.

The HVAC Service Technician supports mission-critical data centers across the U.S., performing troubleshooting, repairs, start-ups, and preventive maintenance on cooling systems and supporting equipment. You’ll work safely, travel frequently, and deliver uptime-focused service while documenting work in our field system and coordinating with site operations.

• Diagnose, repair, and maintain CRAC/CRAH units, chilled water/glycol systems, DX/split/RTU equipment, pumps, heat exchangers, VFDs, and associated controls.
• Perform PMs, start-ups, and commissioning checks; verify operation against manufacturer specs and site SLAs for temperature/humidity and hot aisle/cold aisle containment.
• Execute refrigeration procedures (recover, evacuate, weigh-in charge; superheat/subcooling); perform leak/pressure tests and document readings.
• Basic electrical troubleshooting for HVAC (contractors/relays, motors, capacitors, control circuits; 120–480V, 1Ø/3Ø) in compliance with code and site rules.
• Work with BMS/EMS to monitor trends, alarms, and setpoints; coordinate with facility ops during maintenance windows, change controls, and LOTO.
• Use mobile work order software to document diagnoses, parts, labor, photos, and recommendations in real time; communicate status to dispatch/PM and customer.
• Support on-call rotations and after-hours/emergency response as scheduled.
• Follow safety procedures (LOTO, arc-flash awareness NFPA 70E, fall protection, confined space, rooftop safety); maintain clean, organized job sites and vehicles.
• Mentor junior technicians and interface professionally with customers and vendors.

• 2+ years commercial/industrial HVAC service experience (data center/mission-critical preferred).
• EPA Section 608 certification (Type II or Universal).
• Strong troubleshooting skills in refrigeration and air systems; able to read schematics, wiring diagrams, and O&M manuals.
• Comfortable with laptops/tablets, digital gauges, and mobile work order apps.
• Valid driver’s license and insurable MVR; able to fly/travel nationwide frequently.
• Physical ability to lift 50+ lbs, work at heights/rooftops and in mechanical spaces, and tolerate seasonal temperatures.

• Prior data center experience (CRAC/CRAH, chilled water plants, white-space operations).
• OSHA-10 (or ability to obtain within 30 days).
• Familiarity with BMS platforms (e.g., Johnson, Honeywell, Trane, Schneider).
• NATE certification; chiller/boiler/hydronics and VFD experience.
• Basic understanding of UPS/generator interfaces and change-management windows.

• Competitive salary based on experience.
• Health, dental, and vision insurance.
• Paid time off and holiday pay.
• Opportunities for professional development and certification assistance.

Upchurch Companies provides equal employment opportunities to all employees and applicants. We prohibit discrimination and harassment of any type based on race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.

Entry level

Temporary

Management and Manufacturing

HVAC and Refrigeration Equipment Manufacturing