Commercial HVAC Controls Commissioning Technician

Picture your morning in the Bay Area: a work order lands, you load up, and head to a new commercial site where a high‑efficiency system is ready to come alive. You power up the equipment, verify refrigerant circuits on a VRF system, program the touch‑screen controls, and collaborate with the installing crew to fine‑tune performance. Before you leave, you document every step for warranty submission and log your findings in a clear service report. That’s a typical day on our team.

Who We Are

DMG (an Ambient Company) is a growing sales and distributor company representing major HVAC equipment manufacturers. We’re 150+ employees strong with offices in Castro Valley, San Jose, Freemont, and the greater Bay Area. We offer an excellent benefits package, competitive salary, and a great family atmosphere.

What You’ll Do

Serve as the on‑site startup technician for a variety of manufacturers.
Troubleshoot and verify installation and operation of control systems on commercial Daikin, AAON, and LG HVAC systems.
Apply logic and reasoning to isolate faults; collaborate directly with the installers who completed the job.
Program new control systems using touchscreens and computers.
Read and interpret wiring diagrams and HVAC schematics during diagnostics.
Complete all startup documentation and submit it for warranty processing.
Accurately document actions taken on detailed service reports.
Perform other duties and assignments as needed and maintain regular good attendance.

Knowledge and Abilities

Core Knowledge

HVAC trade practices and industry standards.
HVAC and refrigeration system theory.
Materials, methods, and tools for installation, operation, and repair of HVAC and refrigeration systems.
Electrical theory as applied to common HVAC equipment.
Ability to read and interpret manuals.
Brazing and soldering techniques.
Applicable health and safety regulations.
Basic record‑keeping practices.
Proper storage and handling of equipment, materials, and supplies.

Advanced Technical Knowledge

LG, AAON commercial HVAC systems, and commercial package units.
VRF systems, with expert‑level understanding of refrigerant properties.
HVAC controls systems and related troubleshooting; automated temperature control systems.
Mechanical, electrical, and hydronic systems used in commercial HVAC applications.
Modern, computer‑based HVAC platforms; ability to navigate email, internet applications, basic office software, and computer networking.
BMS communication systems and functionality.
Ability to read and interpret HVAC wiring schematics.

Education and Experience

High school diploma or G.E.D. certificate.
Two years of an HVAC training program.

Licenses and Certifications

Valid California Driver’s License.
Active EPA Universal Technician Certification.

Compensation and Benefits

$40–$60 per hour DOE. We offer excellent health benefits, a 401(k) plan, Paid Time Off, Paid Holidays, and flexible scheduling.

About Ambient

Ambient is a collective of HVAC design and implementation experts, each entity esteemed in their regions, with decades of experience. Our teams merge craft with care to deliver safety, comfort, and highly efficient, sustainable solutions for the spaces that matter most—healthcare, commercial, and residential. We have over 1k employees across the US and Canada.

DMG HVAC

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Commercial HVAC Controls Commissioning Technician