Commercial HVAC Service Technician - Mobile & Specialty Equipment

Tired of working on the same HVAC equipment every day? Looking for an opportunity to expand your technical skills?

Advanced Systems Services Inc. (ASSI) is a family-owned company serving Southern California since 1990. We specialize in maintaining, diagnosing, repairing, and upgrading commercial HVAC and chiller systems on specialized equipment, including mobile medical imaging trailers, television broadcast vehicles, and commercial installations.

We're looking for an experienced Commercial HVAC Service Technician with 3–5 years of hands-on commercial HVAC experience who enjoys troubleshooting, solving problems, and working independently in the field.

What You'll Do:

• Diagnose, troubleshoot, and repair commercial HVAC and chiller systems.
• Perform preventative maintenance, equipment repairs, and system upgrades.
• Work on a variety of specialized mobile and fixed-site equipment.
• Provide professional, high-quality service at customer locations throughout Southern California.

What We're Looking For:

• Minimum 3 years of commercial HVAC service experience; 3–5 years preferred.
• Strong electrical, mechanical, and refrigeration troubleshooting skills.
• Ability to independently diagnose and repair commercial HVAC equipment.
• EPA Section 608 certification.
• Valid California driver's license.
• Chiller experience is a plus, but not required.

What We Offer:

• Competitive pay: $28–$38/hour, depending on experience.
• Medical, dental, and vision benefits.
• Paid time off.
• Paid "Windshield time"
• 401(k) with company match.
• Opportunities to expand your technical skills working on specialized commercial equipment.
• Established, family-owned company with over 35 years in business.

Work Schedule & Availability

This is a field service position supporting customers with mission-critical equipment. While many service calls are scheduled during weekday hours, early morning, evening, weekend, and emergency service calls are a regular part of the job.

Schedules vary based on customer needs, and technicians must be willing to adjust their working hours accordingly. Weekend work is not required every weekend, but flexibility and availability outside traditional business hours are essential to succeeding in this role.

If you're an experienced commercial HVAC technician looking for challenging, varied work beyond traditional commercial HVAC service, we'd like to hear from you!

Job Type: Full-time

Pay: $28.00 - $38.00 per hour

Benefits:

• 401(k)
• 401(k) matching
• Company truck
• Dental insurance
• Health insurance
• Paid time off
• Vision insurance

People with a criminal record are encouraged to apply

Application Question(s):

• Have you ever worked with Medical Chillers?

Experience:

• Commercial HVAC: 3 years (Required)

Work Location: On the road