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Refrigeration Mechanic

Conagra Brands · Darien, WI · Full time

Posted Sep 28, 2026 · We last checked this listing on Oct 6, 2026

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Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

This role works without direct supervision. Tell me about a time you made a call on your own.

What they are checking: Whether they can make sound independent decisions and know when to escalate.

Tell me about a time you mentored another refrigeration mechanic.

What they are checking: Whether they can pass on specialized knowledge, which is part of this job.

What improvement have you made to make a refrigeration or utility system more reliable or efficient?

What they are checking: Whether they think about continuous improvement and energy use, not just repair.

What would you do

How do you respond to an ammonia leak alarm?

What they are checking: Whether they know emergency procedures and put people's safety first.

A production manager pushes you to bring a system back online before you've confirmed it's safe. What do you do?

What they are checking: Whether they hold firm on safety even when there's pressure to restore production.

About the work

Tell me about your experience operating and maintaining industrial ammonia refrigeration systems.

What they are checking: Whether they have real ammonia system experience, since mistakes can cause serious injuries or releases.

What preventive maintenance do you do on boilers and pressure systems?

What they are checking: Whether they understand inspections and checks that keep pressure equipment safe and compliant.

How would you diagnose a freezer that isn't holding temperature?

What they are checking: Whether they troubleshoot refrigeration logically, from controls to compressors to evaporators.

How do you keep refrigeration work orders and records accurate in a CMMS?

What they are checking: Whether they document carefully, which matters for safety programs and regulatory reviews.

What process safety management practices have you followed around ammonia systems?

What they are checking: Whether they understand PSM rules and why procedures and documentation are required.

Practice this interview out loud.

Offer builds a real interview for this exact role at Conagra Brands from your resume and this job description, asks the questions one at a time, and tells you what landed. The first one is free.

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The full job description

As published by Conagra Brands.

Shift: 1:30 PM-9:30 PM Hourly Rate: $36.16 an hour + $1.00 shift differential Reporting to the Maintenance Supervisor, you will operate, maintain, and repair industrial refrigeration, boiler, and related utility systems within a manufacturing plant environment. You will ensure the safe, efficient, and reliable operation of ammonia refrigeration systems and associated equipment, while supporting continuous improvement and mentoring team members. This is a second shift role, working from 1:30pm to 9:30pm. A Taste of Your Responsibilities • Perform operation, installation, overhaul, and preventive maintenance on refrigeration, boiler, and related plant systems without direct supervision • Analyze equipment performance, identify defects, and initiate corrective actions to prevent major breakdowns • Maintain, install, and repair boilers, pressure systems, and all supporting equipment • Complete work orders and maintain accurate maintenance records using a computerized maintenance management system • Train and mentor refrigeration mechanics on proper care, maintenance, and operation of plant systems • Support continuous improvement initiatives to enhance system reliability and efficiency • Troubleshoot and repair electrical components, including alternating current and direct current power and control systems • Perform sheet metal fabrication, precision welding on stainless steel, and plasma cutting as required • Safely operate power tools and shop equipment, including drill presses, grinders, milling machines, and lathes • Ensure compliance with all plant safety policies, procedures, and regulatory requirements • Maintain all assigned logs and documentation • Collaborate with operations and maintenance teams to support production needs • Perform additional duties as assigned by supervisory personnel Ingredients Required for Your Success • Completion of a two-year technical degree in industrial refrigeration maintenance with a minimum of three years of experience as a Refrigeration Mechanic • Current RETA certification or equivalent Certified Industrial Refrigeration Operator certification with a minimum of six years of ammonia refrigeration experience • In-depth knowledge of ammonia and Freon refrigeration systems, boilers, compressors, motors, pumps, and mechanical components • Knowledge of electrical systems, including troubleshooting and repair of industrial power and control systems • Experience performing preventive and predictive maintenance based on technical manuals and work order requirements • Experience using computerized maintenance management systems for work order management and recordkeeping • Skill in precision welding using wire-feed and heliarc methods on stainless steel in multiple positions • Understanding of electro-mechanical systems and interfaces within refrigeration operations • Strong initiative and decision-making skills with accountability for outcomes • Strong communication skills, including reading, writing, and speaking English Physical Requirements More information on the essential tasks and facility will be shared during the hiring process. Please be aware that in a manufacturing environment, the noise levels can be high and the temperatures may vary. Depending on the role, physical and environmental requirements can differ but include: • Being on your feet, walking around the facility, climbing stairs/ladders or kneeling for extended periods of time. • Performing consistent repetitive tasks. • Frequently lifting, pushing or carrying materials. Anticipated Close Date: October 26, 2026 Location: Darien, Wisconsin Our Benefits We care about your total well-being and will support you with the following, subject to your location and role: • Health: Medical, dental and vision insurance, company-paid life, accident and disability insurance • Wealth: Great pay, 401(k)/pension eligibility, financial wellness programs and stock purchase plan • Growth: Career development opportunities, employee resource groups and team collaboration • Balance: Paid-time off and volunteer opportunities Our Company At Conagra Brands, we have a rich heritage of making great food. We aspire to have the most impactful, energized and inclusive culture in food. As a member of our 18,000+ person team across 40+ locations, you are empowered to reach your potential, make an impact and own your career. We're in the business of building champions – within our people and our iconic brands like Birds Eye®, Slim Jim® and Reddi-Wip®. Our focus on innovation extends beyond making great food, it also reflects our commitment to embracing new solutions that positively impact our team, the communities we serve and the health of our planet. Foodies Welcome. Conagra Brands is an equal opportunity employer and considers qualified applicants for employment without regard to sex, race, color, religion, ethnic or national origin, gender, sexual orientation, gender identity or expression, age, pregnancy, leave status, disability, veteran status, genetic information and/or any other characteristic or status protected by national, federal, state or local law. Reasonable accommodation may be made upon request.

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