Building Automation Field Technician: Optimize & Service

Comfort Systems USA (Ohio), Inc.; Cincinnati (OH); On-site; USD 55,000 - 85,000; Full time

Job summary

Comfort Systems USA – Ohio is seeking an experienced Building Automation Service Technician to service commercial and industrial BAS/DDC systems in the Cincinnati area. The role involves startup, commissioning, preventative maintenance, and ongoing optimization to ensure reliable, energy-efficient operation.

You will diagnose issues, repair components, and collaborate with customers and teams in the field, documenting work and maintaining safety standards while guiding system performance

Qualifications

• Experience with Building Automation Systems (BAS), Direct Digital Controls (DDC), HVAC controls, or commercial building control systems.
• Ability to read electrical schematics, wiring diagrams, control diagrams, and technical drawings.
• Strong troubleshooting, diagnostic, and problem-solving skills.
• Ability to work independently in the field, prioritize service calls, and document completed work.
• Valid driver’s license with an acceptable driving record.

Responsibilities

• Troubleshoot BAS, DDC, HVAC controllers, sensors, actuators, relays, control panels, and networks.
• Perform preventative maintenance and system optimization to improve comfort, reliability, energy efficiency, and performance.
• System startup, commissioning, functional testing, and point-to-point checkout.
• Modify programming, schedules, setpoints, graphics, alarms, trends, and control sequences as needed.
• Support controller replacements, system upgrades, retrofit projects, and BAS service activities.

Skills

BAS troubleshooting

Field service

Customer communication

Documentation

Safety compliance

Education

Trade/technical training

Tools

Niagara N4/Tridium

BACnet/IP, Modbus, LonWorks networking

Job description

Comfort Systems USA – Ohio is seeking an experienced Building Automation Service Technician to service commercial and industrial BAS/DDC systems in the Cincinnati area. The role involves startup, commissioning, preventative maintenance, and ongoing optimization to ensure reliable, energy-efficient operation.

You will diagnose issues, repair components, and collaborate with customers and teams in the field, documenting work and maintaining safety standards while guiding system performance