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Operator Assistant Trainee Jobs in Colorado (NOW HIRING)

Driver Trainee

Glenwood Springs, CO · On-site

$22.14 - $27.35/hr

A Driver Trainee will work closely with Drivers and assist them with the delivery and merchandising ... operating a vehicle. All results are reviewed fairly and in accordance with applicable state and ...

Perform detailed inspections of operating equipment and operational areas * Assist with maintenance activities * Complete area housekeeping duties * Learn and understand basic metallurgical milling ...

Mill Operator Trainee

CO · On-site

$22 - $29.50/hr

Maintain and operate concentrator equipment Perform detailed inspections of operating equipment and operational areas Assist with maintenance activities Complete area housekeeping duties Learn and ...

Mill Operator Trainee

CO · On-site

$22 - $29.50/hr

Perform detailed inspections of operating equipment and operational areas * Assist with maintenance activities * Complete area housekeeping duties * Learn and understand basic metallurgical milling ...

Mill Operator Trainee

Parshall, CO · On-site

$22 - $29.50/hr

Maintain and operate concentrator equipment Perform detailed inspections of operating equipment and operational areas Assist with maintenance activities Complete area housekeeping duties Learn and ...

Mill Operator Trainee

Parshall, CO · On-site

$22 - $29.50/hr

Maintain and operate concentrator equipment Perform detailed inspections of operating equipment and operational areas Assist with maintenance activities Complete area housekeeping duties Learn and ...

Mill Operator Trainee

Parshall, CO · On-site

$22 - $29.50/hr

Perform detailed inspections of operating equipment and operational areas * Assist with maintenance activities * Complete area housekeeping duties * Learn and understand basic metallurgical milling ...

Mill Operator Trainee

Parshall, CO · On-site

$26 - $33/hr

Maintain and operate concentrator equipment Perform detailed inspections of operating equipment and operational areas Assist with maintenance activities Complete area housekeeping duties Learn and ...

Mill Operator Trainee

Parshall, CO · On-site

$26 - $33/hr

Perform detailed inspections of operating equipment and operational areas * Assist with maintenance activities * Complete area housekeeping duties * Learn and understand basic metallurgical milling ...

Mill Operator Trainee

Parshall, CO · On-site

$22 - $29.50/hr

Perform detailed inspections of operating equipment and operational areas * Assist with maintenance activities * Complete area housekeeping duties * Learn and understand basic metallurgical milling ...

Mill Operator Trainee

Parshall, CO · On-site

$22 - $29.50/hr

Perform detailed inspections of operating equipment and operational areas * Assist with maintenance activities * Complete area housekeeping duties * Learn and understand basic metallurgical milling ...

Mill Operator Trainee

Parshall, CO · On-site

$22 - $29.50/hr

Perform detailed inspections of operating equipment and operational areas * Assist with maintenance activities * Complete area housekeeping duties * Learn and understand basic metallurgical milling ...

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Showing results 1-20

Operator Assistant Trainee information

What is the difference between Operator Assistant Trainee vs Operator Assistant?

AspectOperator Assistant TraineeOperator Assistant
Required CredentialsHigh school diploma or equivalent; on-the-job trainingHigh school diploma or equivalent; experience preferred
Work EnvironmentTraining phase, supervised, safety-focusedFull-time, operational, hands-on
Employer & Industry UsageUtilities, manufacturing, transportationUtilities, manufacturing, transportation

The main difference is that the Operator Assistant Trainee is in a training phase, gaining skills under supervision, while the Operator Assistant has completed training and performs operational tasks independently. Both roles are common in industries like utilities and manufacturing, with the trainee position serving as a stepping stone to full responsibility.

What does an operator assistant trainee do?

An operator assistant trainee supports equipment operators by performing tasks such as inspecting machinery, assisting with maintenance, and ensuring safety protocols are followed. They typically learn on the job, may operate basic tools or equipment, and often need safety certifications or training to progress in the role.

What are popular job titles related to Operator Assistant Trainee jobs in Colorado?

For Operator Assistant Trainee jobs in Colorado, the most frequently searched job titles are:

What job categories do people searching Operator Assistant Trainee jobs in Colorado look for?

The top searched job categories for Operator Assistant Trainee jobs in Colorado are:

Infographic showing various Operator Assistant Trainee job openings in Colorado as of August 2026, with employment types broken down into 1% As Needed, 74% Full Time, 20% Part Time, 1% Temporary, and 4% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution.

System Operator Trainee

Westminster, CO • On-site

Tri-State Generation & Transmission
11 - 50 employees

$42/hr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 8 days ago


Job description

System Operator Trainee

Responsible for gaining a comprehensive working knowledge of all aspects of System Operations through formal training courses, on-the-job training, field training and self-study. The Trainee will progress through a phased training program to teach the Trainee all of the aspects of System Operations including scheduling, electrical fundamentals, transmission system switching, transmission system reliability, and emergency response. The training is to be completed within 24 months. Participate, under the direction of a NERC Certified System Operator, in daily routine or emergency operations of the power system.

Tri-State recognizes the value of a highly engaged and committed workforce and provides an excellent benefits program that includes: Medical Insurance, Dental Insurance, Vision Insurance Health Savings Account (HSA), Flexible Spending Accounts (FSA), Tuition Reimbursement, Flexible Work Schedules, Life Insurance, 401K, Long Term Disability (LTD), Short Term Disability (STD), Employee Assistant Program (EAP) and Paid Leave Benefits.

System Operator Trainee Hiring Wage: $42.00

Responsibilities
  • Complete and pass TSGT System Operator Trainee training course designed for System Operations.
  • Participate, under the direction of a NERC Certified System Operator, in daily routine or emergency operations of the power system.
  • Develop a working knowledge of the EMS/SCADA (Energy Management System/Supervisor Control and Data Acquisition) system and become competent in its operation including the performance of real-time system studies.
  • Develop a working knowledge of the electrical transmission system to include transmission lines, substations, telecommunications, and all other major related components.
  • Become competent on all communications equipment to include radio and telephone equipment and other associated devices.
  • Become competent on various computer applications for data entry, report writing, and data exchange.
  • Complete field assignments with Tri‑State crews in order to learn transmission, substation, and generation job functions. Minimum of one week with each field discipline, or as required.
  • Develop a working knowledge of all WECC major transmission paths and their impact on the interconnected system (i.e. TOTs).
  • Learn the basic fundamentals of coal fired, combined cycle and combustion turbine generation, hydroelectric, and renewable generation technologies (i.e. wind and solar) to include terminology, characteristics and limitations.
  • Develop a working knowledge of Regional Transmission Organization (RTO) and/or Independent System Operator (ISO) reliability functions.
  • Gain a working knowledge of power scheduling, power contracts, and learn basic power marketing principles.
  • Learn and comply with safe work and clearance procedures as they apply to routine and emergency situations.
  • Understand and fulfill the role and responsibility for all compliance programs within the company.
  • Because Tri-State is an electric utility with continuous service obligations to its customers, regular, reliable, and predictable performance of the essential functions and responsibilities is an essential function of the job.
  • Because Tri-State has an obligation to provide continuous, reliable electric service to its customers, the ability to work overtime at any time of the day or week is considered an essential function of the job.
Qualifications

Education and Training

  • High school education or equivalent. Associate degree in electronics or electrical technology or equivalent. Completion of technical training/schooling such as military A school training, desirable. Working knowledge of algebra, geometry and basic principles of physics.

Knowledge, Skills, and Ability:

  • Ability to learn electrical and mechanical theory, AC and DC circuits and the fundamentals of power flow.
  • Must become NERC System Operator Certified in the first six months of employment.
  • Must maintain NERC System Operator Certification by obtaining the required continuing education hours.
  • Must be able to distinguish full range of colors; position duties involve the use of computer monitor which displays color-coded electric system diagrams.
  • Willingness to work rotating shifts.
  • Ability to use or learn computer terminal.
  • Ability to communicate, both orally and written.
  • Working knowledge of safety rules and equipment.
  • Ability to work under stress.
  • Ability to maintain effective working relationships.

Experience:

  • Zero (0) to two and one half (2 ½) years of related experience.

Other:

  • Willingness to travel as required. (Must possess a valid driver's license.)
  • Utility experience in power plant or field maintenance is desired or military equivalent.

DESIRED JOB QUALIFICATIONS

  • NERC Certification
About Us

Tri-State is a wholesale power supply cooperative, operating on a not-for-profit basis, with electric distribution cooperatives and public power district members in four states: Colorado, Nebraska, New Mexico and Wyoming. Together with its members, Tri-State delivers reliable, affordable and responsible power and energy services to nearly a million electricity consumers across roughly 200,000 square miles of the West. Founded in 1952 by its member systems to provide a reliable, cost-based supply of electricity, Tri-State is now headquartered in Westminster, Colo., employing approximately 1,000 people across five states. Tri-State's electricity is generated from coal, natural gas, hydropower, wind, and solar. This power reaches members via a transmission system that includes substation facilities, telecommunications sites and almost 6,000 miles of high voltage transmission lines. As a member-owned and -governed cooperative, every member has a voice and an equal vote in the future of Tri-State.