Millwright / Plant Maintenance

Type of Contract: Regular

Simon is a subsidiary of Colas USA with operations throughout Colorado, Nebraska, South Dakota, and Wyoming. We specialize in aggregate, asphalt, and ready-mix concrete materials production, with expert teams providing high-quality asphalt paving, concrete, bridge, and utility construction services. Through strong local ties backed by global resources, we focus on quality and value to deliver the best products and services for our clients. The Colas USA Family of Companies provides competitive pay, outstanding benefits, career advancement opportunities, professional education, and extensive training for every employee. We pride ourselves on upholding the highest standards of safety, environmental conservation, and ethical conduct as we strive to grow our infrastructure products and services through empowering and developing our people, fostering innovation, utilizing new technology, and maximizing vertical integration at all levels of the company’s value chain. Job Summary: Responsible for installing, maintaining, troubleshooting, and repairing plant machinery, equipment, and related structures within a commercial aggregate and/or ready-mix/asphalt production environment. This role supports continuous plant operations by ensuring equipment reliability, safety, and efficiency, and assists with plant and quarry operations as needed.

follow code of ethics, workplace conduct, safety, and other established policies

Ensure a safe work environment by following all safety policies and procedures, while using the appropriate tools, equipment, and PPE for the task

Perform daily tasks and expectations for each project as advised by manager

Assist with maintaining organization and safe operation of yard or plant

Maintain plant to meet operating requirements and objectives

Visually inspect and test plant machinery and equipment

Perform maintenance mechanic assignments on equipment and facilities of plant

Collect data for preventative and predictive plant maintenance projects

Perform welding and cutting assignments, including fabrication for plant equipment and structures, and make repairs to worn processing equipment according to plant standards

Inspect lubrication of mechanical equipment, record data for running equipment, take lab samples as required, drain oil and change oil and filters on all equipment oil reservoirs

Operate mobile heavy industrial equipment and/or company vehicles used to complete maintenance and perform other tasks involved in plant maintenance and operation as required

Technical or vocational certification in Industrial Maintenance, Diesel Technology, Welding, or a related field preferred

Valid Class B Commercial Driver’s License (CDL) with air brake endorsement required

Skills: Welding and fabrication experience in an industrial or similar environment required; equivalent combination of training and experience considered

2+ years of industrial mechanical maintenance experience preferred

Demonstrated ability to troubleshoot, diagnose, and repair mechanical equipment

Experience with preventive and predictive maintenance practices

Working knowledge of mechanical systems including hydraulics, pneumatics, and rotating equipment

Experience operating heavy industrial and/or construction equipment

Prior experience in pit/quarry operations, ready-mix or asphalt production facilities, or similar aggregate production environments

Wears and maintains required PPE (personal protective equipment) to ensure safe performance of job responsibilities as required

Regularly uses hands to handle tools, equipment, and materials necessary for completing operational tasks safely and efficiently

Regularly works in changing environmental conditions (such as outdoor weather, dust, or airborne particles) due to the nature of operational work sites

Regularly works near fuels, oils, and other common workplace chemicals associated with operating or supporting equipment and machinery

Frequently lifts and/or moves up to 50 pounds with or without assistance to handle materials, tools, equipment, or documents essential to the role

Frequently works in environments that may include loud noise, moving equipment, dust, or varying indoor/outdoor conditions depending on operational needs

Occasionally works at heights or near electrical hazards when tasks require elevated access or proximity to electrical components

Ability to work flexible hours including evenings, weekends, and overtime; overnight travel may be required

Benefits & Perks: Choice of 3 Medical Plan Options

Dental and Vision Plans

Flexible Spending Account or Health Savings Options

Employee Assistance Program

Life and AD&D Insurance

Disability Insurance

Paid Time Off and Paid Holidays

Application window anticipated to close on 06/05/2026; For details on the specifics of this commitment, please view the EEO document. If you are an individual with a disability and require a reasonable accommodation to meet the requirements of the role in which you are applying or to complete any part of the application process, please contact the appropriate channel for assistance.

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