Commercial HVAC Commissioning & Field Service Technician

What your day looks like

Morning starts on-site at a new install, powering up equipment and walking through control sequences with a project manager. By mid-day you’re verifying sensors, dialing in setpoints, and documenting functional performance tests. In the afternoon, you pivot to a field service call to troubleshoot a rooftop unit, close a punch list item with the installer, and finish with customer training and a clean handoff.

Core Impact

• Start up and commission rooftop units, split systems, chillers, and control systems.
• Diagnose and repair issues in the field across electrical, mechanical, and controls.
• Calibrate sensors, verify sequences of operation, and confirm setpoints.
• Execute functional performance testing and produce complete documentation.
• Provide customer training and handoff materials to ensure a confident turnover.
• Collaborate with project managers, installers, and subcontractors to resolve punch list items.
• Keep thorough service reports, parts usage, and warranty records.
• Follow safety protocols and represent the company with professionalism onsite.

What you bring

• 3+ years in field service, startup, commissioning, or controls (commercial HVAC preferred).
• Experience with VRF (variable refrigerant flow) systems strongly preferred.
• Knowledge of HVAC controls, refrigerant charging practices, and electrical fundamentals.
• Comfort with diagnostic tools (multimeter, manifold gauges) and using a tablet/computer.
• Exceptional troubleshooting ability, meticulous attention to detail, and clear customer communication.
• Valid driver’s license and willingness to travel to customer locations.
• CT S, or D license is required.

Where you’ll work

Primarily onsite at new installations and in the field responding to service calls, ensuring systems operate safely and efficiently.

What we offer

• Excellent pay (based on experience) + overtime
• Health, dental, and vision options
• Paid time off and holidays
• 401K and profit sharing
• Company vehicle
• Training and certification support, career advancement opportunities