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Senior Refrigeration Lab Technician

Duke Manufacturing Co.
Sedalia, MO Full Time
POSTED ON 9/7/2026
AVAILABLE BEFORE 10/6/2026
Duke Manufacturing Company is looking for a Senior Refrigeration Lab Technician to join our Engineering team at our Sedalia, Missouri location!

Duke History

Founded in 1925, Duke Manufacturing is a privately held leader in foodservice equipment and integrated solutions designed to help customers improve throughput, efficiency, and quality in their operations. For more than 100 years, Duke has been committed to delivering innovative solutions that connect people, equipment, and technology. Our purpose is simple but powerful: Nourish Our World by helping customers improve performance through smarter, more connected foodservice operations.

As a privately held company, Duke takes pride in its rich history, strong culture, and values-driven approach to business. We are committed to doing the right thing, embracing new possibilities, and continuously learning and improving. Duke operates more than 700,000 square feet of manufacturing space in Sedalia, Missouri and Houston, Texas, with our corporate headquarters located in St. Louis, Missouri.

Job Summary

The Senior Refrigeration Lab Technician is the senior technical resource in the Sedalia refrigeration lab. The role plans and executes in-house and agency testing on new and existing refrigerated products, analyzes refrigeration system data, identifies design flaws, and coordinates corrective changes with engineers and vendors. Responsibilities include sizing and charge determination, test method development, root cause analysis of field and returned-goods failures, and completion of agency DAP data sheets. The Senior Technician also mentors Laboratory Technicians and serves as the lab's point of contact for cross-functional product launches and issue resolution.

In your role as a Senior Refrigeration Lab Technician, you'll take part in the following activities:

  • Safety & Lab Ownership
  • Test Planning & Execution
  • Refrigeration System Analysis & Design Support
  • Problem Solving & Quality
  • Agency, Codes & Regulatory
  • Cross-Functional Support

Full roles details are listed in the attached job description.

Education And Experience

  • HS diploma or GED required; Associate degree or technical/professional certification preferred
  • 5 years commercial refrigeration service, installation, or lab test experience (10 preferred)

Required Knowledge And Skills

  • Clear understanding of the vapor compression cycle - enthalpy and thermodynamics (superheat, subcooling, sensible and latent heat, product and food loads) and airflow (CFM, velocity FPM, static and velocity pressure).
  • Understanding of metering devices - TXV, AXV, EXV, and cap tubes.
  • Low-temp and mid-temp commercial refrigeration experience; understanding of commercial and residential refrigeration system operation.
  • Strong knowledge of mechanical systems; intermediate knowledge of electrical and plumbing systems; working knowledge of pneumatic, electric, and electronic control systems.
  • Strong electrical wiring knowledge, including wiring diagrams, electrical troubleshooting, and controls.
  • Basic knowledge and skills in brazing, soldering, insulation, measuring, and sheet metal.
  • Ability to read blueprints, schematics, and wiring diagrams.
  • Knowledge of basic construction methods and build techniques for food service equipment, serving systems, and refrigerated equipment.
  • Universal 608 (EPA) certification preferred, or the ability to attain it for the right applicant.
  • Strong analytical, problem solving, and organizational skills.
  • Ability to work independently with minimal direction and in teams as needed.
  • Good math, communication, and basic computer skills.

Duke's Guiding Principles & Core Values Include

  • Guiding Principles:
    • Customer Validated Solutions that Solve Pain
    • Simple & Efficient
    • Using Least Waste Methods

  • Core Values:
    • Passion to succeed
    • Open to new possibilities
    • Do the right thing
Benefits

Duke Manufacturing offers a full range of benefits to our employees, including:

  • Paid time off
    • 11 paid holidays
    • 2 weeks' vacation
    • Allotment of paid leave hours (PTO)
  • Medical, Dental and Life Insurance
  • Vision Care Plan
  • 401(k) with company match
  • FSA and HSA options
  • Tuition Reimbursement Program
and more!

Work Location

  • Sedalia, MO
  • Up to 10% domestic travel to client sites and trade show attendance

Duke is an Equal Opportunity Employer.

Salary.com Estimation for Senior Refrigeration Lab Technician in Sedalia, MO
$59,338 to $75,221
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