Refrigeration Technician (Wednesday - Saturday, 6:00 pm - 6:30 am)

OSI INDUSTRIES, LLC; Oakland (CA); On-site; USD 70,000 - 90,000; Full time

Job summary

OSI Industries, LLC in Oakland, CA is seeking a Maintenance Technician specialized in refrigeration systems, specifically ammonia refrigeration. The role focuses on maintaining, repairing and examining ammonia refrigeration equipment, performing preventative maintenance and responding to breakdowns.

Candidates should have 3–5 years of related experience, an associate degree or equivalent, and preferably an ammonia refrigeration certification.

Qualifications

• 3-5 years of experience in related field preferred.
• Associates degree or equivalent preferred.
• Ammonia Refrigeration Certification is a plus.
• Work conditions include noise, extreme temperatures and moving equipment in a manufacturing plant.

Responsibilities

• Confer with operators and observe, test, and evaluate operation of machinery to diagnose malfunctions.
• Disassemble machinery and equipment to remove parts and make repairs.
• Interface with state and federal government agencies as required.
• Operate refrigeration and utility systems.
• Perform daily chemical testing and log results, adjusting as needed to maintain systems within limits.
• Follow safety policies and procedures and perform other duties as assigned.

Skills

Microsoft Office

Multi-craft/multi-skilled

Electrical knowledge

Ammonia refrigeration

Education

Associates degree or equivalent

Ammonia Refrigeration Certification (plus)

Job description

Job Category: Maintenance

Requisition Number: REFRI004371

• Posted : July 27, 2026
• Full-Time
• On-site

Locations

Showing 1 location

Oakland
Oakland, IA 51560, USA

Description

This role is responsible for maintaining, repairing, and examining refrigeration systems, working specifically with ammonia refrigeration. This role requires performing preventative maintenance to refrigeration systems. They also respond to any breakdowns, meaning they may need to be on call to conduct emergency repairs.

Job Responsibilities

• Job is an individual contributor and has no direct reports.
• Confer with operators and observes, tests, and evaluates operation of machinery and equipment to diagnose cause of malfunction.
• Disassemble machinery and equipment to remove parts and make repairs.
• Interface with state and federal government agencies as required.
• Operate refrigeration and utility systems.
• Perform daily chemical testing and logging all test results, making adjustments required to maintain refrigeration & utility system within established limits.
• This role has the responsibility to understand and places in practice appropriate safety procedures. This responsibility is achieved through education, training, use of protective equipment (as applicable) and by following safety policies, regulations, standards, and laws.
• Perform other duties as assigned.

Experience & Skills

• 3-5 years of experience in related field is preferred.
• Excellent proficiency in all Microsoft Office Suite Products.
• Ability to work various shifts.
• Multi-craft/multi-skilled with expertise in electrical, electrical controls, mechanical, pneumatics, hydraulics, and fabrication.
• Working and practical knowledge of plant utility systems is highly desirable, (including boiler systems, ammonia refrigeration systems, compressed air systems).

Education

• Associates degree or equivalent is preferred.
• Ammonia Refrigeration Certification is a plus.
• Work can be performed within a manufacturing plant environment with noise, extreme temperatures, and significant movement of powered equipment, people and conveyor (may depend on the role).
• Work conditions are typical of a food manufacturing facility.
• This role does not require any domestic travel
• Position requires the physical agility to perform continuous lifting up to 50 pounds, bending, squatting, pushing, pulling, stretching/reaching, use hands or fingers, talk, hear, feel objects, tools, controls and standing/walking on concrete flooring.
• Position requires the physical ability to stand/walk for the duration of work hours.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws.For further information, please review the Know Your Rights notice from the Department of Labor.