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Thermal Processing Jobs in Wisconsin (NOW HIRING)

IPM Foods

Process Specialist

Janesville, WI · On-site

Help maintain the Thermal Processing Schedule for all company products * Conduct routine reviews of Processing Data and assist in handling and disposition of processing deviations Qualifications

ALKAR-RAPIDPAK, INC.

Food Technologist

Lodi, WI · On-site

$70K - $80K/yr

The position also involves overseeing the operations of our thermal processing lab and delivering technical training and support both on-site and at customer facilities. Up to 50% travel may be ...

Alkar

Food Technologist

Lodi, WI · On-site

$70K - $80K/yr

The position also involves overseeing the operations of our thermal processing lab and delivering technical training and support both on-site and at customer facilities. Up to 50% travel may be ...

ALKAR-RAPIDPAK, INC.

Food Technologist

Lodi, WI · On-site

$70K - $80K/yr

The position also involves overseeing the operations of our thermal processing lab and delivering technical training and support both on-site and at customer facilities. Up to 50% travel may be ...

Firefly Aerospace

WI · On-site

SUMMARY Firefly Thermal Engineers apply advanced simulation and heat transfer expertise to solve ... Contribute to process improvements, automation, and modeling best practices. QUALIFICATIONS ...

Radyne

Metal Fabricator

Milwaukee, WI · On-site

Radyne is located in Milwaukee WI, USA and is a subsidiary of the Inductotherm Group; the world's largest supplier of melting, thermal processing & production systems for the metals and materials ...

Radyne

Technical Sales Estimator

Milwaukee, WI · On-site

Radyne is located in Milwaukee WI, USA and is a subsidiary of the Inductotherm Group; the world's largest supplier of melting, thermal processing & production systems for the metals and materials ...

WALKER FORGE

Lead Fleet Maintenance Mechanic

Clintonville, WI · On-site

$24.25 - $32.25/hr

... Precision Thermal Processing. * An associate's degree from an accredited technical college in Diesel Equipment Technology or Diesel Truck Technology or a technical diploma from an accredited ...

Walker Forge

Lead Fleet Maintenance Mechanic

Clintonville, WI · On-site

$24.25 - $32.25/hr

... Precision Thermal Processing. * An associate's degree from an accredited technical college in Diesel Equipment Technology or Diesel Truck Technology or a technical diploma from an accredited ...

Walker Forge

Lead Fleet Maintenance Mechanic

Clintonville, WI · On-site

$24.25 - $32.25/hr

... Thermal Processing. Qualifications * An associate's degree from an accredited technical college in Diesel Equipment Technology or Diesel Truck Technology or a technical diploma from an accredited ...

ALKAR-RAPIDPAK, INC.

Mechanical Designer I

Lodi, WI · On-site

$31 - $34/hr

This position supports the mechanical engineering team in the design and detailing of custom thermal processing equipment and requires close supervision and regular design review. This role is suited ...

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Thermal Processing information

What is the difference between Thermal Processing vs Food Processing Technician?

AspectThermal ProcessingFood Processing Technician
CertificationsFood safety certifications, HACCPFood safety certifications, HACCP
Work EnvironmentFood manufacturing plants, laboratoriesFood manufacturing plants, quality control labs
Industry UsagePreserving food through heat treatmentsAssisting in various food production processes
Job FocusDesigning and overseeing thermal food preservationOperating equipment, quality checks in food production

Thermal Processing specialists focus on designing and managing heat-based food preservation methods, ensuring safety and shelf life. Food Processing Technicians assist in daily production tasks, operating equipment, and maintaining quality. While both roles require food safety certifications and work in food manufacturing environments, Thermal Processing is more specialized in heat treatment processes, whereas Food Processing Technicians support overall production operations.

Infographic showing various Thermal Processing job openings in Wisconsin as of September 2026, with employment types broken down into 93% Full Time, and 7% Nights. Highlights an 100% In-person job distribution.

Process Specialist

Janesville, WI • On-site

IPM Foods
Food and Drink Manufacturing • 1 - 10 employees
Learn more about IPM Foodsexternal

Full-time

Re-posted 2 days ago

Job description

Title: Thermal Process Specialist

 

Location: Janesville, WI

 

Reports to: Senior Quality Manager

 

Company Overview 

NaturPak is a rapidly growing, vertically integrated food and ingredient manufacturer specializing in retort packaged meals and broths, pet nutrition, and functional food ingredients. The company operates two advanced manufacturing facilities in Janesville, Wisconsin, including a state-of-the-art Tetra Pak Recart platform and a growing ingredient and R&D operation. 

 

Position Overview: 

The thermal process specialist focuses on ensuring that thermal processing operations are safe, compliant, efficient, and capable of producing high-quality products and also develops, validates, and optimizes thermal processing systems to ensure food safety, regulatory compliance, product quality, and manufacturing efficiency across commercial food production operations.

 

Description and Responsibilities

  • Supervising retort processes rerpoting to SQM
  • Keep up with calibration for retort related equipment.
  • Review thermal process records
  • Escalate deviation and unusual occurrence and work on root cause analysis with SQM
  • Assisting with Temperature distribution study 
  • Asisting with RD team with heat penetration
  • Schedule retort PM with maintenance department
  • Controling the retort cleaning process
  • Work on a cross-functional team to establish and implement a customized formal training program for retort operators
  • Assist in filing scheduled processes with the FDA in accordance with the Code of Federal Regulations
  • Help maintain the Thermal Processing Schedule for all company products
  • Conduct routine reviews of Processing Data and assist in handling and disposition of processing deviations

 

Qualifications 

  • Bachelor's degree in Food Science, Food Engineering, Chemical Engineering, Microbiology, or a related scientific field. 
  • Experience
  • 3–10+ years of experience in food manufacturing, food processing, quality assurance, process engineering, or thermal processing. 
  • Experience with retort, aseptic, pasteurization, or sterilization systems. 
  • Experience conducting process validations and scientific studies. 
  • Knowledge of commercial food production environments and continuous improvement practices. 
  • Knowledge of process validation and verification, HACCP and preventive controls, Food safety regulations and compliance requirements, Statistical analysis and data interpretation and packaging interactions with thermal processing