CoolSys seeks an experienced HVAC Service Technician to service, troubleshoot, and repair commercial and industrial HVAC-R systems. In this field-based role, you'll perform diagnostics, preventive maintenance, and complex repairs while prioritizing safety, quality, and customer satisfaction. You'll work with advanced energy-efficient systems, support mission-critical environments, and collaborate with a skilled team. CoolSys offers technical training, career growth, and the chance to impact sustainable, reliable HVAC-R solutions nationwide. Responsibilities Diagnose, repair, and maintain commercial and industrial HVAC-R systems in the field Perform preventive maintenance, inspections, and system performance checks Interpret electrical, mechanical, and control schematics to troubleshoot issues Ensure all work complies with safety standards, codes, and company procedures Document work performed, parts used, and findings in service software Communicate findings and recommendations to customers and internal teams Support energy-efficient and reliability-focused solutions for customer sites Collaborate with team members and participate in ongoing technical training Required Skills Commercial HVAC diagnostics Refrigeration systems troubleshooting Preventive maintenance Electrical and control schematics reading Brazing and leak detection Energy efficiency optimization Chiller and RTU service HVAC safety procedures CMMS/service ticketing software Customer communication and documentation