Sr CO2 Refrigeration Service Technician - PA/NJ

RD&S is expanding our commercial and industrial CO2 refrigeration division, and we are seeking a highly experienced, field-proven Senior CO2 Refrigeration Service Technician to help build one of the strongest CO2 service teams in the region. We are looking for a highly specialized CO2 technician who can support customers professionally in the field, lead service work and field operations, and travel throughout the region as needed.

Key Responsibilities:

• Diagnose and repair complex CO2 refrigeration system issues
• Troubleshoot:
  • Transcritical CO2 systems
  • Parallel rack systems
  • Gas coolers
  • Electronic expansion valves
  • Refrigeration controls
  • Mechanical and electrical system issues
• Perform planned maintenance, emergency service, and customer support activities
• Generate accurate service documentation and reporting
• Serve as a senior technical representative to customers
• Maintain strong communication throughout service and project execution
• Provide technical recommendations and long-term service solutions
• Support and mentor junior technicians when needed
• Ensure projects and service work are completed safely, professionally, and efficiently
• Support CO2 construction, startup, and commissioning activities as required
• Assist project teams with system startup, controls verification, and operational testing
• Coordinate with project managers, controls teams, and contractors during startup activities