Commercial Refrigeration Service Technician Level 4

Advanced Commercial Group; Atlanta (GA); On-site; USD 90,000 - 120,000; Full time

Job summary

Advanced Commercial Group is seeking a Senior Refrigeration Service Technician Level 4 to lead diagnostics, repairs, and optimization of large commercial refrigeration and HVAC systems in Atlanta, GA. The role emphasizes mentorship, safety, and adherence to environmental standards.

Ideal candidates will have 6+ years of experience in commercial refrigeration or HVAC, EPA certification, and strong leadership and communication skills to manage high-priority service calls and deliver exceptional

Qualifications

• 6+ years of commercial refrigeration or HVAC service experience.
• EPA Certification required.
• Ability to work independently and manage high-priority service calls.
• Strong troubleshooting and diagnostic capabilities.
• Experience with rack systems, grocery store refrigeration systems, or large commercial refrigeration environments preferred.
• Excellent communication and leadership skills.

Responsibilities

• Lead advanced troubleshooting and diagnostics on commercial refrigeration and HVAC systems.
• Perform complex repairs, retrofits, and system optimization.
• Serve as a technical advisor and subject matter expert within the service team.
• Ensure work is completed safely and in compliance with industry and environmental standards.
• Maintain accurate service documentation and provide detailed reporting to customers and management.
• Mentor Level 1–3 technicians and assist in technical training initiatives.
• Lead large installation and retrofit projects in coordination with project managers, engineers, and field teams.
• Ensure EPA and environmental compliance requirements are followed.
• Stay current on industry advancements, regulatory changes, and emerging refrigeration technologies.

Skills

Commercial refrigeration experience

HVAC service experience

Troubleshooting

Leadership

Communication

EPA Certification

Job description

The Refrigeration Service Technician Level 4 is a senior-level technician responsible for complex diagnostics, major system repairs, and optimization of commercial refrigeration and HVAC systems. This role requires extensive technical expertise, strong problem-solving skills, and the ability to manage high-priority service calls with minimal supervision. The Level 4 Technician plays a critical role in supporting the service team by mentoring technicians, ensuring adherence to industry standards, and delivering exceptional customer service.

Key Responsibilities

• Lead advanced troubleshooting and diagnostics on commercial refrigeration and HVAC systems
• Perform complex repairs, retrofits, and system optimization
• Serve as a technical advisor and subject matter expert within the service team
• Ensure work is completed safely and in compliance with industry and environmental standards
• Maintain accurate service documentation and provide detailed reporting to customers and management
• Support technician development through mentorship and hands‑on training
• Contribute to process improvements and quality assurance initiatives

Primary Duties

• Diagnose and repair complex refrigeration and HVAC system failures
• Repair, replace, and optimize critical components including: Advanced control systems
• Multi‑stage compressors
• Variable frequency drives (VFDs)
• High‑capacity cooling systems
• Perform system commissioning to ensure installations meet operational and efficiency standards
• Develop and implement preventative maintenance strategies to improve system performance and reliability
• Analyze recurring system issues and recommend long‑term solutions
• Lead large installation and retrofit projects in coordination with project managers, engineers, and field teams
• Ensure EPA and environmental compliance requirements are followed
• Provide customers with detailed service reports, recommendations, and system improvement strategiesMentor Level 1–3 technicians and assist in technical training initiatives
• Stay current on industry advancements, regulatory changes, and emerging refrigeration technologies

Qualifications

• 6+ years of commercial refrigeration or HVAC service experience
• Strong troubleshooting and diagnostic capabilities
• Experience with rack systems, grocery store refrigeration systems, or large commercial refrigeration environments preferred
• Knowledge of advanced controls and refrigeration systems
• EPA Certification required
• Ability to work independently and manage high‑priority service calls
• Strong communication and leadership skills