Blue Collar Services

Senior Refrigeration Technician - Waltham

Waltham, MA

Job Description

Senior Refrigeration Technician

Posted: Sunday, 6/2/2024

We are looking to add a Commercial Refrigeration Service Technician to our growing team.

Up to $35/HR



Performs maintenance, diagnosis and repair of refrigeration, heating & air-conditioning systems commonly installed in restaurants, convenient stores and cold storage facilities. Operates independently with minimal direct supervision. Develops first line customer relations and identifies potential sales opportunities.

What We Offer:

  • Dispatch from home, take home vehicle
  • Company gas card, phone
  • UNLIMITED Paid vacation
  • Paid holidays
Just as we take excellent care of our customers, we strive also to create a healthy work/life balance with deep respect for the quality-of-life for all our technicians. With a laid-back environment and excellent leadership, we also value our technicians by offering a consistent schedule with limited time on-call and work/life balance.

If you're ready to take the next step in your career with the support of an excellent team behind you:



  • Perform prescribed, routine maintenance procedures on refrigeration system and self-contained temperature-controlled merchandisers
  • Enough system knowledge to match customer needs with potential sales opportunities and ability to complete rapid/accurate diagnosis
  • Manage truck inventory
  • Orders, receives, bills out and maintains parts responsibly with a minimum of waste
  • Manages assigned vehicle within all company guidelines. Maintains a clean vehicle, performs required maintenance on time
  • Complete necessary documents and electronic communication in a thorough, accurate, professional and timely manner
  • Demonstrate the ability to utilize hand-held device to complete necessary paperwork and invoicing requirements
  • Ability to systematically utilize mirror and flashlight to check all joints, install PVC drain pipe with minimal supervision, set and trim cases, install and adjust glass doors and frames, use temperature sensors, use brazing and soldering techniques, and determine proper coil layout in complex boxes
  • Accurately identify pipe size and fittings by sight, perform system refrigerant and oil conversions and test oil during conversion and electric weld a variety of metals and joint types
  • Identify, troubleshoot, and correctly size thermostatic expansion valves
  • Working knowledge of pressure regulators as they pertain to pressurized gases, refrigerant flow controls, TEV troubleshooting and replacement, and tracing complex schematic diagrams
  • Demonstrate understanding of low/high pressure oil systems, split condensing/low ambient controls, refrigerated equipment startup, EMS controls, CO2 refrigeration, new retail store refrigeration startup, air flow characteristics and testing, motor VFD’s, all system defrost types, recovery setup, torch setup, compressor operating parameters, conventional refrigeration system layout, and parallel rack system layout, and advanced wiring diagrams
  • Demonstrate a working knowledge of gauge, scale, recovery, ECM, shaded pole, PSC, three phase motors, compressor operating parameters, oil differential pressure valves and oil level controls
  • Detect and repair leaks on conventional systems and parallel racks, solder with copper-to-brass and copper to steel, conduct compressor diagnosis and replacements, troubleshoot and repair more complex service calls, check/adjust oil management system and compressor oil level control
  • Serve as a mentor to other technicians and lead HVAC/R PM programs

  • HVAC-R Technical School plus 5 years of related experience or 7 years of experience in HVAC/HVAC-R without technical school
  • EPA 608 Universal Certification
  • Great customer service skills
Connect with us and learn more about this opportunity TODAY!

Blue Collar Services At A Glance

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