Refrigeration Engineer II Job at The Wittern Group, Des Moines, IA

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  • The Wittern Group
  • Des Moines, IA

Job Description

The Refrigeration Engineer position will:

Develop and optimize refrigeration and cooling systems for performance, compliance, assembly, and fabrication. Ensure adherence to cULus, CE, Nom, NAMA, and other regulatory standards.

Duties and Responsibilities:

• Perform thermal cabinet analysis and sealed system performance analysis.

• design refrigeration circuits, algorithms, select refrigerants, and select components;

• ensure compliance with DoE, UL, CE, NAMA, safety and environmental standards;

• troubleshoot and validate prototypes, verify Pilots, and Production transition. 

• Support on Market production issues.

• Lead product certification efforts for all NPD & CI projects.

• stay attuned to UL/Intertek/CE/DoE/NAMA requirements.

• manage documentation.

• coordinate and host UL/Intertek auditors.

• coordinate testing with UL DoE certifiers

• design and execute test plans for regulatory approval.

• verify all agency compliance certifications.

KNOWLEDGE AND SKILLS:

• Lead design, analysis, and implementation of modules, subsystems or functional elements with end-to-end responsibility (requirements → design → verification → handover).

•Perform detailed engineering tasks: stress/thermal/electrical analysis, simulation, system modeling, trade studies, tolerance analysis, failure mode analysis (FMEA), etc.

•Define test plans, lead test execution, analyze results, and drive corrective actions.

• Generate complete documentation: design specifications, interface control documents, drawings, software/firmware deliverables, test protocols, validation reports.

• Perform design reviews and mentor Engineer I staff in solving technical challenges, best practices, and domain knowledge.

• Interact with downstream stakeholders (manufacturing, test, quality, procurement, production) to support design for manufacturability, assembly, supply chain alignment, and component selection.

• Identify, escalate, and help mitigate technical risks, propose alternative solutions, and assist in project planning.

• Contribute to process improvements, tool enhancements, methodology refinements, and engineering standards within the team.

• Guide interns or co-ops and coordinate contributions of junior engineers.

EDUCATION AND WORK EXPERIENCE:

Bachelor’s or Masters degree in Mechanical or Refrigeration Engineering disciplines with 3–6 years of experience with a successful track record of engineering contributions. Progress toward may have or be working toward professional licensure (if applicable).

Job Tags

Work experience placement,

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