Sr CORefrigeration 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.

• 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

• Extensive hands‑on experience with commercial and/or industrial CO2 refrigeration systems
• Proven experience with:
  • CO2 transcritical systems
  • Advanced troubleshooting
  • Refrigeration controls integration
  • Parallel rack systems
  • Mechanical and electrical diagnostics
• Ability to work independently with minimal supervision
• Strong customer communication and professionalism in field environments
• Strong written communication skills and experience preparing detailed field service and startup reports
• Willingness to travel extensively based on customer and project demands
• Commitment to safety, technical excellence, and high‑quality workmanship
• Startup and commissioning experience is strongly valued
• EPA Certification required
• Valid Driver’s License required
• OSHA certification preferred

• Eligible for healthcare benefits on Day 1 of employment:
  • Medical, dental, vision, and prescription drug coverage
  • Flexible Spending Account (FSA), Dependent Care Spending Account (DCSA)
  • Health Savings Account (HSA)
  • Company‑paid Life Insurance;
    Supplemental Employee, Spouse, and Dependent Life
  • Accident Hospital Indemnity
• Company‑paid Short and Long‑term Disability Insurance
• Pet Insurance
• Employer matched 401(k) saving plan (with Roth option)
• Weekly paycheck
• Generous paid holiday schedule (11 days per year)
• Paid time off (vacation + sick time)
• Learning & Development programs
• Employee Referral Bonus Program
• Tuition Reimbursement