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Mill Operator Jobs in Colorado (NOW HIRING)

Freeport McMoRan

Mill Operator Trainee

Parshall, CO · On-site

$22 - $29.50/hr

Where You Will Work Our Henderson mine and mill are an hour drive apart - separated by the ... Perform detailed inspections of operating equipment and operational areas * Assist with maintenance ...

Freeport McMoRan

Mill Operator Trainee

Parshall, CO · On-site

$26 - $33/hr

Where You Will Work Our Henderson mine and mill are an hour drive apart - separated by the ... Perform detailed inspections of operating equipment and operational areas * Assist with maintenance ...

ExpressPros - Denver, CO

CNC Mill Machinist

Denver, CO · On-site

$23 - $25/hr

CNC Mill Operator - $23-25/hr DOE | 4-Day Workweek | North Denver, CO Experienced with CNC milling and precision machining? If you've worked as a CNC Mill Operator, CNC Mill Machinist, or in any role ...

New

Freeport McMoRan

Mill Operator Trainee

CO

$22 - $29.50/hr

We have operated in Colorado for more than 100 years, with mining and milling operations near Leadville, Kremmling and Empire. Our Climax Mine is located between Frisco and Leadville - the seat of ...

Freeport McMoRan

Mill Operator Trainee

Climax, CO · On-site

$22 - $29.50/hr

We have operated in Colorado for more than 100 years, with mining and milling operations near Leadville, Kremmling and Empire. Our Climax Mine is located between Frisco and Leadville - the seat of ...

Five Rivers Cattle Feeding, LLC

Mill Labor

Yuma, CO

Mill Labor REPORTS TO: Feedmill Manager and Assistant Feedmill Manager FLSA STATUS: Hourly, Ag ... Experience operating heavy equipment. * Ability to read and interpret documents such as safety ...

Five Rivers Cattle Feeding

Mill Labor

Yuma, CO

Mill Labor REPORTS TO: Feedmill Manager and Assistant Feedmill Manager FLSA STATUS: Hourly, Ag ... Experience operating heavy equipment. * Ability to read and interpret documents such as safety ...

Freeport-McMoRan, Inc.

Mill Operator Trainee

CO · On-site

$22 - $29.50/hr

We have operated in Colorado for more than 100 years, with mining and milling operations near Leadville, Kremmling and Empire. Our Climax Mine is located between Frisco and Leadville - the seat of ...

Five Rivers Cattle Feeding, LLC

Mill Labor

Yuma, CO · On-site

Mill Labor REPORTS TO: Feedmill Manager and Assistant Feedmill Manager FLSA STATUS: Hourly, Ag ... Experience operating heavy equipment. * Ability to read and interpret documents such as safety ...

Cobalt Cattle Company LLC

Mill Manager

Eckley, CO

Position: Mill Manager Overview: Manages the mill and its employees to optimize efficiency, and ... Ability to read and interpret documents such as safety rules, operating and maintenance ...

Cobalt Cattle Company LLC

Mill Manager

Yuma, CO

Manages the mill and its employees to optimize efficiency, and profitability, through successfully ... Ability to read and interpret documents such as safety rules, operating and maintenance ...

Cobalt Cattle Company LLC

Mill Manager

Wray, CO

Manages the mill and its employees to optimize efficiency, and profitability, through successfully ... Ability to read and interpret documents such as safety rules, operating and maintenance ...

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All JobsMill Operator JobsMill Operator Jobs in Colorado

Mill Operator information

See Colorado salary details

$14

$21

$29

How much do mill operator jobs pay per hour?

As of Sep 1, 2026, the average hourly pay for mill operator in Colorado is $21.40, according to ZipRecruiter salary data. Most workers in this role earn between $17.69 and $23.27 per hour, depending on experience, location, and employer.

What does a mill operator do?

The job duties of a mill operator include working to operate and maintain a milling machine. Depending on the industry, your job duties in this career could consist of running a saw, bore, or another piece of milling equipment. In nearly all mill operator positions, you must read blueprints or CAD designs to set your milling machine correctly before you load the materials. You also have cleaning responsibilities, and you must remove and recycle salvageable materials left over after the milling process.

What does a mill operator do?

A Mill Operator is responsible for operating and maintaining milling machines that process raw materials such as metals, minerals, or grains. They monitor equipment, adjust machine settings, and ensure products meet specific quality standards. Mill Operators also troubleshoot issues, perform routine maintenance, and follow safety protocols to prevent accidents. Their work is essential in industries like mining, manufacturing, and food production.

What are the key skills and qualifications needed to thrive as a mill operator, and why are they important?

To thrive as a Mill Operator, you need a solid understanding of machinery operation, mechanical aptitude, and basic math skills, often backed by a high school diploma or equivalent. Familiarity with industrial control systems, safety protocols, and maintenance tools is essential, and some positions may require forklift certification. Attention to detail, problem-solving abilities, and strong communication skills help operators manage equipment efficiently and address issues promptly. These skills are crucial for maintaining production quality, ensuring safety, and minimizing downtime in manufacturing environments.

What are some typical challenges mill operators face, and how can they be addressed on the job?

Mill Operators often encounter challenges such as equipment malfunctions, material inconsistencies, and maintaining safety standards in a fast-paced environment. Proactively conducting routine inspections, following strict safety protocols, and communicating effectively with maintenance and quality control teams can help address these issues. Additionally, staying updated with operational procedures and participating in ongoing training can improve efficiency and reduce downtime. Collaboration and attention to detail are key to overcoming common obstacles in this role.

What is the difference between Mill Operator vs Machine Operator?

AspectMill OperatorMachine Operator
CredentialsHigh school diploma or equivalent; technical training often preferredHigh school diploma or equivalent; technical training may be required
Work EnvironmentFactories, manufacturing plants, processing facilitiesFactories, manufacturing plants, production lines
Industry UsageHeavy industry, mineral processing, cement, paper millsManufacturing, packaging, assembly lines
Job FocusOperating and controlling mills to process raw materialsOperating machinery to produce goods or components

Both Mill Operators and Machine Operators work in manufacturing environments, often requiring similar skills and certifications. However, Mill Operators typically focus on operating mills for processing raw materials, while Machine Operators handle various machinery for producing finished goods. Understanding these differences helps job seekers find the right role in the manufacturing industry.

What is a mill operator's job?

A mill operator is responsible for operating and monitoring machinery in a manufacturing or processing plant, such as a grain mill or metal mill. They set up equipment, ensure safety protocols, and maintain production efficiency, often using control panels and tools. The role requires attention to detail, technical skills, and adherence to safety standards.
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Mill Operator jobs near you
Infographic showing various Mill Operator job openings in Colorado as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $44,507 per year, or $21.4 per hour.

Mill Operator Trainee

Freeport McMoRan

Parshall, CO • On-site

$22 - $29.50/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 15 days ago

Freeport-McMoRan rating

8.2

Company rating: 8.2 out of 10

Based on 141 frontline employees who took The Breakroom Quiz

8th of 41 rated mining

Job description

At Climax Molybdenum, we are committed to providing an employment package that recognizes excellence, encourages safe production and a culture supported by our core values. Here, you'll find a collaborative environment where safety is a top priority, all opinions are valued, and people are empowered to grow in their career.    

We accept applications on an ongoing basis.

Where You Will Work 

Our Henderson mine and mill are an hour drive apart - separated by the Continental Divide and a 15-mile conveyor system (10 miles underground). The Henderson mine is an underground molybdenum mining operation located approximately 42 miles west of Denver and 10 miles west of Empire. It has been in operation since 1976 and today consists of a large block-cave, underground mining complex feeding a concentrator with a current capacity of approximately 32,000 metric tons per day. It can produce approximately 15 million pounds of molybdenum per year. The Henderson mill is located 15 miles west of the mine, between Dillon and Kremmling. 

Both sites are surrounded byUS Forest Serviceland of theArapaho National Forest, making it easy for our employees and their families to enjoy year-round hiking, cross-country skiing, and snowshoeing in the area. Explore the opportunity to advance your career at one of our sites - the Henderson mine or mill and live life at the top! 

Employees who are required to work on-site are eligible for a $1,450 monthly housing allowance, provided they meet program guidelines.

What You Will Do
  • Make guided decisions to support the primary objective of safe production. 
  • Maintain and operate concentrator equipment 
  • Perform detailed inspections of operating equipment and operational areas 
  • Assist with maintenance activities 
  • Complete area housekeeping duties 
  • Learn and understand basic metallurgical milling principles 
  • Perform other tasks as assigned 
What You Bring To Freeport
  • Three (3) months work experience 
  • Must have completed academic and practical competencies required (this includes Line of Progression requirements for internal employees where LOP Exists) and have experience demonstrating the required aptitude. The selected candidate shall demonstrate the ability to apply knowledge and skills while also passing a written assessment where required. This exam is based on skills/abilities and/or academic knowledge; as well as safety. 
  • Ability to communicate in English with respect to job assignments, job procedures, and applicable safety standards 
  • Knowledge of milling, crushing and conveying equipment. Including operating parameters, limits and functionality of equipment 
Preferred Qualifications

What We Offer You 

The estimated pay range for this role is currently$22.00- $29.50/hour. This range reflects base salary only and does not include bonus payments, benefits or retirement contributions. Actual base pay is determined by experience, qualifications, skills and other job-related factors. This role is eligible for additional discretionary and incentive payment considerations based on company and individual performance. More details will be shared during the hiring process. Click here to view a sample of Total Rewards Estimate for this role.

  • Employees who are required to work on-site are eligible for a $1,450 monthly housing allowance, provided they meet program guidelines 
  • Affordable medical, dental and vision benefits 
  • Company-paid life and disability insurance 
  • 401(k) plan with employer contribution/match 
  • Paid time off, paid sick time, holiday pay, parental leave 
  • Tuition assistance 
  • Employee Assistance Program 
  • Discounted insurance plans for pet, auto, home and vehicle 
  • Internal progression opportunities 
  • Learn more about our competitive and comprehensive benefits package!
     

What We Require 

  • Candidates may be required to pass a medical exam. 
  • Candidates must pass all required training and/or testing. 
  • Employees may be required to work a non-standard schedule, which may include shift work (other than day shift) at a 24/7, 365-day operation. 
  • Freeport-McMoRan promotes a drug/alcohol-free work environment using mandatory pre-employment drug testing and on-going drug and alcohol testing, as allowed by applicable laws. 

Equal Opportunity Employer 

Please be advised that Freeport-McMoRan will never request payment for job-related expenses from applicants. If you receive any suspicious emails, please disregard them, and report the incident to HRSC@fmi.com. 

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