Sr Field Service Technician - Refrigeration

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process. Sr Field Service Technician - Refrigeration Full-time Roswell, GA, US 30+ days ago Requisition ID: 1636 Job Summary Experienced Senior Refrigeration Technician with strong hands-on expertise in DX refrigeration systems and CO₂ (R744) refrigeration. This role supports commercial and industrial refrigeration installations, service, troubleshooting, startups, and commissioning focus on Walmart business. The ideal candidate is self-sufficient in the field, safety-focused, and comfortable working on advanced refrigeration and control systems. Key Responsibilities Service, diagnose, and repair DX and CO₂ refrigeration systems, including single systems, rack systems, and trans critical CO₂ applications Perform system startups, commissioning, for new and retrofit installations Troubleshoot mechanical, electrical, and control-related issues, including compressors, valves, sensors, gas coolers, and electronic expansion devices Interpret P&IDs, wiring diagrams, schematics, and control sequences Properly document service activities, findings, and corrective actions using service reports Work safely and in compliance with EPA, OSHA, and company safety standards Collaborate with project managers, service coordinators, OEMs, and customers Provide technical support and mentorship to 1st tier support technicians when needed Required Qualifications 5–10 years of refrigeration experience, with a strong emphasis on DX systems Demonstrated, hands-on experience with CO₂ (R744) refrigeration systems Strong working knowledge of: Commercial rack systems Mechanical and electrical troubleshooting Refrigeration controls and sensors Ability to work independently in customer facilities Valid driver’s license with acceptable driving record Willingness to work on-call or travel as required Preferred Qualifications Startup and commissioning experience for CO₂ systems Experience with OEM platforms such as Danfoss, Emerson, Carel, Hussmann, or Hillphoenix Vocational, technical school, or apprenticeship background Experience in industrial, grocery, cold storage, or data center environments Physical & Work Requirements Ability to lift up to 50–75 lbs Ability to work at heights, in mechanical rooms, and outdoor environments Comfortable working in cold and hot conditions #J-18808-Ljbffr ADP, Inc.