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Mechanical Engineer

Refrigeration Systems

Who Are We?

Have you ever gone into a grocery store or convenience store for things like milk, bagged salads, or frozen pizza? The coolers and freezers you find those and other food products in are what we do!! Zero Zone is a manufacturer of reach-in and open refrigerated and frozen food display cases as well as the refrigeration systems that work behind the scenes to cool the cases, keeping the food fresh! We also make powerful industrial refrigeration systems for food warehousing, pharmaceuticals, and even ice rinks!

Our company is structured across 2 divisions – the Display Case Division, located in North Prairie, WI, Waukesha, WI, Pewaukee, WI and Mukwonago, WI and the Refrigeration Systems Division, located in Ramsey, MN and Dyersville, IA.

What Are We Like?

At Zero Zone, you will be a valued member of the Zero Zone team, able to take ownership of your own career path. We believe in hard work, teamwork, collaboration, and respect, and we have grown through dedication to our mission: “To exceed customer expectations through innovation, quality, and responsiveness.” For over 60 years, we have been a leader in refrigeration, and our people are well-known for exceptional customer service. We also believe we are the COOLEST coworkers (pun intended)! This is an opportunity for you to make a difference in the refrigeration industry with one of the top leading manufacturers in the country! Come grow with us!!

What Can We Offer You?

  • Vacation and Personal Hours (after only 30 days!)
  • Competitive Wages
  • Comprehensive Benefits Package (medical, dental, vision, life insurance, STD, LTD, AD&D, FSA, EAP)
  • 401k and Profit Sharing
  • 10 Paid Holidays
  • Flexible Schedules
  • Casual Dress Code
  • Wellness Programs and Incentives
  • Steel Toe Reimbursement
  • Holidays parties, company lunches, and free coffee
  • One-time Home Computer Reimbursement
  • And more!

NOTE: This position does not qualify for visa sponsorship.


What Will You Do?

The Mechanical Engineer conducts multiple engineering functions in a high pace custom manufacturing environment. The Mechanical Engineer will work with a robust engineering team to design and develop complex mechanical and electrical plans to produce refrigeration systems for commercial and industrial markets. Engineers must be able to provide technical support and troubleshooting for our onsite production team and as well as display a hands-on approach. All engineers work cross-departmentally and with customers to design industry leading products onsite with our skilled production team.


  • Perform the design of refrigeration systems for commercial and industrial environments including chilled water, halocarbon-based systems, Co2, and industrial ammonia refrigeration facilities
  • Ability to select, schedule, size and specify system components to include air distribution, air handling, refrigeration, piping, heat exchangers, pumps, piping, and accessories
  • Perform heat load calculations to determine facility refrigeration requirements and heat transfer and thermodynamic analysis associated with sizing and selection of refrigeration equipment, piping, and control valves
  • Review refrigeration components during manufacturing process and recommend design modifications as necessary
  • Design products and systems to meet requirements of quality, cost effectiveness, energy efficiency, customer requirements, company standards and other predetermined competitive factors
  • Work to meet design schedules and complete tasks on budgets
  • Interface and communicate with external and internal customers including engineering, manufacturing, procurement, and sales/marketing personnel
  • Create new and/or revise preliminary design from objects, rough sketches or verbal or written instructions from engineers
  • Research and analyze data – such as customer design proposals, specifications, and manuals – to determine feasibility of design or application of products and systems
  • Communicate with the sales organization or directly with the customer about product and system design, performance and specifications
  • Coordinate with onsite manufacturing personnel to ensure products and systems conform to engineering design and customer specifications
  • Respond to field service issues by providing solutions and support as needed
  • Other duties as assigned


  • Bachelor’s Degree in Mechanical Engineering
  • HVAC/Refrigeration experience is a plus but not required
  • Proficiency in AutoCAD is required, experience with SolidWorks is desired
  • Strong written and verbal communication skills
  • Proficient using Windows Office
  • Knowledge of ERP systems is helpful
  • A high electro-mechanical aptitude and knowledge is preferred


  • Heat and mass transfer and fluid dynamics knowledge is desired
  • Great project management, ability to plan and organize, set priorities, and manage multiple projects
  • A strong propensity for being hands-on and work closely with factory production personnel
  • Ability to exercise independent judgment and work independently with minimal supervision
  • Accountability and resourcefulness
  • Effectively communicate with coworkers on projects


  • Zero Zone expects all employees to behave and communicate in a manner which will facilitate good relations with customers, clients, co-workers, and supervisors, maintaining a positive work atmosphere
  • Regularly required to stand or walk; talk or hear; use hands to finger, handle, or feel objects, tools, or controls; and lift and/or move up to 25 pounds usually from the floor to waist level, up to 20 feet away
  • Regularly required to reach with hands and arms, stoop, kneel, crouch, and/or crawl
  • Occasionally required to lift and/or move up to 50 pounds, usually from the floor to waist level, up to 20 feet away
  • Specific vision abilities required by this job include close vision, distance vision, peripheral vision, depth perception, and ability to adjust focus

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