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Location
In office (Burr Ridge)
Seniority
Senior · 5+ years exp
Visa
H-1B filings in 12 months: 6 · green card filings: 5
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 12, 2026. First seen by Alion on Nov 9, 2026. Mars scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Mars, Incorporated is a family-owned American maker of confectionery, food and pet care products headquartered in McLean, Virginia. Founded in 1911 by Frank C. Mars and still owned by the Mars family, it sells brands such as M&M's, Snickers, Twix, Orbit, Pedigree, Whiskas and Royal Canin and runs veterinary hospital chains including Banfield and VCA. Its global careers board lists sales representatives, machine technicians, brand and marketing managers, pet nutrition roles and corporate staff in North America, Europe and Asia.

Job Description:

The Industrial Refrigeration Technician is responsible for the operation and maintenance of all plant centralized utility systems including anhydrous ammonia, high pressure/low pressure boilers, compressed air, heat trace, wastewater, fire, ammonia detection, PSM (Process Safety Management), electrical, air handling and dehumidification systems.

The Industrial Refrigeration Technician must have multi-craft skills (mechanical/control/electric) and be able to troubleshoot and make repairs to a wide variety of equipment safely and efficiently. The Industrial Refrigeration Technician is expected to complete preventative maintenance/planned work on equipment and identify/implement continuous improvement opportunities.

What are we looking for?

Minimum Qualifications:

  • A high school or trade school diploma or equivalent with coursework in math, science and mechanical and electrical drawing, and equipment schematics reading and interpretation.
  • Must have or be willing to get a City of Chicago Stationary Engineers License.
  • Must have or be willing to get RETA (CIRO/CAIRO) certifications.
  • Must be willing to get all other licenses and certifications as required. Some travel is necessary.
  • Prefer at least 5 years of experience and expertise with industrial anhydrous ammonia refrigeration systems and their associated equipment. We will consider having at least 5 years' demonstrated experience in industrial maintenance or industrial electrical or controls systems in lieu of anhydrous ammonia experience.
  • Manufacturing experience preferred.
  • Position works some weekends and holidays.
  • Must work well with others in a team environment.
  • Must wear be able to wear an APR (Air Purifying Respirator)

What will be your key responsibilities?

  • Responsible for maintaining and operating efficiently and safely the anhydrous ammonia system and all its associated equipment according to PSM. Operates and maintains steam, compressed air, heat trace, wastewater, glycol, water, and fire systems.
  • Has the mechanical, electrical and controls expertise to identify and repair equipment problems.
  • Follow all Mars safety / lock-out tag out procedures.
  • Conducts routine audits of equipment.
  • Maintains a professional and friendly line of communication with all associates and contractors.
  • Inspects and monitors the condition of equipment.
  • Identifies and follows-up on improvement opportunities.
  • Enters planned and unplanned work orders into SAP.
  • Provides maintenance/project assistance during planned shutdowns.
  • Provides preventative maintenance on anhydrous ammonia systems, steam systems, production related HVAC systems, life safety systems, electrical systems, plumbing systems, wastewater systems and recommends repair or replacement actions.
  • Responds to emergency malfunction events, assesses the situation, and takes action to stabilize the situation to avoid further damage and safety risks. Documents and communicates off-normal incidents.
  • Records time and materials expenditures in SAP.
  • Active member of PSM team.
  • Following manufacturers and regulatory specifications. Reviews and updates building systems and equipment preventative maintenance schedules.
  • Outstanding communication skills.
  • The position follows regulatory compliance requirements, supports the Company and goal objectives, the department quality improvement and operating goals, and principles goals, individually and as an effective team member.

Engineering and Projects:

  • Be a resource during project installation.
  • Direct contractors.
  • Assists in start-up of new project and equipment.
  • Provides technical assistance and knowledge.
  • Identifies potential safety and quality risks.

Training:

  • Must complete all Mars training as scheduled.
  • Responsible for personal development by attending all training offered at company expense.

What can you expect from Mars?

  • Work with over 130,000 like-minded and talented Associates, all guided by The Five Principles.
  • Join a purpose driven company, where we’re striving to build the world we want tomorrow, today.
  • Best-in-class learning and development support from day one, including access to our in-house Mars University.
  • An industry competitive salary and benefits package, including company bonus.

The base pay range for this position at commencement of employment is between the range listed below, however, base pay offered may vary depending on multiple individualized factors, including but not limited to job-related knowledge, skills, and experience. The total compensation package for this position will include variable pay, medical and dental benefits, participation in 401k plan, and paid time off benefits. Details of participation in these benefit plans will be provided if an applicant receives an offer of employment.

The pay range listed is applicable to IL:USD 41.40 - USD 56.92
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