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Ready Mix Plant Operator

Knife River - Midwest
United States, Iowa, Sioux City
2220 Hawkeye Drive (Show on map)
Jul 22, 2025
Description

Good Pay! Good Benefits! Good People! Knife River is a PEOPLE-first company. Our team members are key to our success, and we are committed to giving them the tools, training, and time to do their jobs productively and go home safely each day. Please consider joining our growing team today!

At Knife River, we take care of our team because we know it's our people who make us successful. We are one of the 10 largest construction materials producers/contractors in the Country, and we are a PEOPLE-first company. Our team members are the key to our success, and we are committed to giving them the tools, training, and time to do their jobs productively and safely each day. Our goal is to build strong teams that, in turn, build strong communities. We are also a publicly traded company on the NYSE with the ticker symbol KNF and part of the S&P MidCap 400 index.

JOB SUMMARY

This is a skilled position involving the safe and efficient production of ready mix concrete to be delivered to customer's job sites. Performs duties in conjunction with dispatcher's loading instructions with minimal supervision. This position is a full time seasonal position.

EDUCATION AND/OR WORK EXPERIENCE REQUIREMENTS



  1. High school diploma or General Education Degree required.
  2. Two years batching - related experience.
  3. Knowledge of mix designing.
  4. Knowledge of Quality Assurance requirements.
  5. Familiarity with aggregate gradations.
  6. Experience with inventory management.
  7. Class B preferred, but not required.
  8. Ability and willingness to pass ACI Level I Certification within six months.


DUTIES AND/OR RESPONSIBILITIES



  1. Batch concrete loads according to specifications.
  2. Ability to understand appropriate uses of various mix designs.
  3. Schedule timely delivery of aggregates, admixtures and supplies to plant. Clear and effective communication skills are necessary.
  4. Responsible for efficient working condition of plant equipment.
  5. Enforce safety rules and regulations (Federal, state, local and company policies.)
  6. Inspect plant for necessary maintenance and complete repairs as assigned.
  7. Operate hand tools and safety equipment including, but not limited to: grease guns, wrenches, shovels, fire hoses and cutting torches.
  8. Operate equipment safely.
  9. Assist with unloading material.
  10. Work alone or work with other employees in a friendly & cooperative manner.
  11. Be receptive to ongoing education about products and how they work.
  12. Be able to work at heights safely.
  13. Perform servicing and maintenance safely.
  14. Performs other duties as assigned.


The typical schedule is Monday - Friday, 7:00 AM - 5:00 PM, with Saturday as needed during the production season.

This position starts at $25.90 and up, depending on experience.

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