Refrigeration Journeyperson

Hemlock Semiconductor•Hemlock, MI
•$44 - $48

About The Position

The Refrigeration Journeyperson applies refrigeration, heating, air conditioning, ventilation, and electrical principles to analyze and correct problems involving large, low-temperature critical process equipment, comfort HVAC systems, electrical and computer room HVAC systems, and related equipment. The role installs, starts and stops, troubleshoots, repairs, maintains, overhauls, and dismantles this equipment, including systems unique to Hemlock Semiconductor. The position requires understanding assigned equipment and its impact on plant operations, communicating with plant operators, and making necessary corrections and running adjustments to support production and quality. The journeyperson also supports critical clean-room temperature, humidity, and pressurization conditions; performs preventative maintenance and inspections; and records time and technical findings in SAP. After an initial break-in period of 6–12 months, the employee participates in a trade-group pager rotation for emergency work and may need to work overtime on short notice. The employee must follow applicable safety standards, use required PPE, keep work areas and equipment clean, and track and repair refrigerant losses and leak rates in compliance with Clean Air Act Section 608.

Requirements

  • High school diploma or GED.
  • At least 3 years of experience working in the field as a Journeyperson.
  • Competence working on commercial and/or industrial HVAC and chillers.
  • EPA Technician certification.
  • Journeyman card or equivalent.
  • State driver’s license.

Responsibilities

  • Understand the design and operation of assigned equipment and how it relates to plant operations.
  • Communicate daily with plant operators about running conditions that affect assigned equipment and plant operations.
  • Analyze mechanical, electrical, and refrigerant-related problems, and make necessary corrections and running adjustments to maintain production and quality.
  • Use circuits, wiring diagrams, and drawings to troubleshoot electrical problems and install, repair, calibrate, service, or replace electrical and electronic control and monitoring devices.
  • Leak-check, evacuate, and charge equipment ranging from small hermetic air conditioners to large low-temperature, two-stage screw-compressor systems.
  • Maintain critical clean-room temperature, humidity, and pressurization conditions.
  • Perform assigned preventative maintenance tasks and inspections, and report abnormal findings to the Trade Leader.
  • Participate in the trade-group pager rotation for emergency work after the initial 6–12-month break-in period, and work overtime on short notice when required.
  • Wear required PPE, follow HSC safety standards, and keep work areas and equipment clean.
  • Enter time into SAP daily and enter technical findings when appropriate.
  • Track, monitor, and repair refrigerant losses and leak rates for Clean Air Act Section 608 compliance; communicate with Environmental, Trade Leader, and Team Leader personnel so ongoing problems can be addressed and agencies notified as appropriate.

Benefits

  • Medical insurance
  • Dental insurance
  • Vision insurance
  • 401(k) plan
  • Variable bonus
  • Life insurance coverage
  • Disability benefits
  • PTO
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service