HVAC Start Up Technician

Commercial HVAC | Southern California

Full-Time | Field-Based

Position Overview

We are seeking an experienced Senior HVAC Startup Technician to lead the startup, commissioning, and performance verification of commercial HVAC systems. This role focuses on ensuring new or retrofitted equipment operates safely, efficiently, and to design intent before handoff to the customer. Ideal candidates have strong mechanical and electrical troubleshooting skills, hands-on experience with a wide range of commercial equipment, and a commitment to quality documentation and customer training.

This is a field-based position serving commercial clients across Southern California. Occasional travel within the region may be required.

Key Responsibilities

• Perform comprehensive startups and commissioning of commercial HVAC systems, including rooftop units (RTUs), air handlers (AHUs), chillers, boilers, cooling towers, VRF/VRV systems, split systems, heat pumps, VAV systems, and related equipment.
• Verify installations against design documents, manufacturer specifications, and company standards before energizing equipment.
• Conduct functional performance testing, adjust and tune systems for optimal operation, and document performance data.
• Diagnose and resolve mechanical, electrical, and controls issues during startup (including 480V/3-phase power, control circuits, motors, VFDs, sensors, and BAS/BMS integration).
• Complete accurate startup checklists, commissioning reports, and system documentation in a timely manner.
• Coordinate with installers, project managers, controls technicians, and factory representatives as needed.
• Train building owners, facility managers, and engineers on basic system operation and maintenance.
• Identify installation deficiencies and work with the team to correct them.
• Maintain a professional, safety-first approach on job sites, following OSHA standards, EPA refrigerant handling practices, and company safety policies.
• Support warranty service and troubleshooting when required.

Requirements

• Minimum 7–10 years of commercial HVAC experience with a strong focus on service, startup, or commissioning (residential-only experience does not qualify).
• Demonstrated ability to start up and troubleshoot multiple commercial system types (chillers, boilers, RTUs, AHUs, VRF, VFDs, etc.).
• EPA 608 Universal certification (required).
• Strong electrical troubleshooting skills on commercial systems.
• Ability to read and interpret mechanical drawings, wiring diagrams, and technical manuals.
• Valid driver’s license and clean driving record.
• Excellent communication skills and professional customer-facing demeanor.
• Ability to work independently on customer sites while maintaining high standards of quality and safety.
• Physical ability to lift and carry up to 50+ lbs, work in mechanical rooms, on rooftops, and in varying weather conditions, and occasionally work in tight spaces.

Preferred Qualifications

• Manufacturer-specific training or certifications (Trane, Carrier, Daikin, York, Lennox, etc.).
• Experience with building automation systems (BAS/BMS) and controls.
• NATE certification or commissioning-related training.
• Associate degree or technical school training in HVAC/R or a related field.
• Prior experience mentoring junior technicians.

Work Environment & Physical Demands

This is a hands-on field role. Expect time on commercial job sites, rooftops, and mechanical rooms. The position requires standing, walking, climbing, bending, and occasional heavy lifting. Work may involve exposure to heat, cold, noise, and confined spaces. A company vehicle and tools are typically provided for qualified candidates.

Pay: $40.00 - $60.00 per hour

Expected hours: 40.0 per week

Benefits:

• 401(k)
• Dental insurance
• Health insurance
• Life insurance
• Paid time off
• Retirement plan
• Vision insurance

Work Location: In person