Commercial HVAC Service Tech

DG Heating And Air Conditioning • California, San Jose • Posted June 24, 2026

About the Role

Job Description Job Description

Must have a minimum of 3 years' experience and live in the San Jose, CA area to apply.

We are seeking a results-driven HVAC-R Technician specializing in commercial facilities and mission-critical environments.

You must have expertise in installing, diagnosing, maintaining, and optimizing complex systems, including but not limited to the following:

  • Cooling Systems: Chillers, VRF, DX Split, Packaged Systems, Cooling Towers, Fluid Coolers
  • Heating & Water Systems: Boilers, Water Source Heat Pumps, Pumping Systems
  • Specialized Environments: Data Centers, Mission-Critical Cooling, Food Storage Refrigeration
  • Electrical & Automation: DDC Controls, Variable Speed Drives (VSDs), Fans
  • Advanced Analytics: Predictive Failure Analysis, Energy Optimization