Mobile HVAC Chiller Technician – Field Service Pro

Johnson Controls, Inc.; St. Louis (MO); On-site; USD 74,000 - 83,000; Full time

Job summary

Johnson Controls, Inc. in St. Louis, MO is seeking experienced HVAC technicians to support commercial/ducted systems, chillers, AHUs, and rooftop units.

You will participate in startup, commissioning, and aftermarket service while upholding safety standards and delivering top-tier customer support. Candidates must have 3+ years of hands-on HVAC experience, a universal EPA refrigerants license, a valid driver’s license, and be willing to travel 10–20% for training and field work.

Qualifications

• Minimum of three years of practical experience on commercial/ducted HVAC equipment such as chillers and AHUs.
• EPA refrigerants license and valid driver's license are required.
• Willingness to travel 10–20% for training and startup activities.

Responsibilities

• Assist startup, commissioning, troubleshooting and aftermarket service for HVAC systems.
• Provide quotes and recommendations to improve facility efficiency and upsell where appropriate.
• Prepare technical documentation and communicate findings, causes, and corrective actions to customers.
• Collaborate with local market mechanics to deliver safe, high-quality service.

Skills

HVAC Troubleshooting

Commercial/ducted systems

EPA refrigerants license

Tools

STA training

Job description

Johnson Controls, Inc. in St. Louis, MO is seeking experienced HVAC technicians to support commercial/ducted systems, chillers, AHUs, and rooftop units.

You will participate in startup, commissioning, and aftermarket service while upholding safety standards and delivering top-tier customer support. Candidates must have 3+ years of hands-on HVAC experience, a universal EPA refrigerants license, a valid driver’s license, and be willing to travel 10–20% for training and field work.