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Quality Control Technician

KRC Corporation


Job Location:

Kahului, HI - USA

Monthly Salary: Not provided by the employer
Posted: 21 August 2026 (13 days ago)
Application Deadline: 18 November 2026
Vacancies: 1 Vacancy

Department:

Quality Control

Job Summary

Minimum Requirements

  • High school graduate or GED equivalent.
  • Valid Hawaii State drivers license.
  • Maintain proper certifications licensure and acceptable driving record (where applicable)
  • Able to operate testing machines and equipment.
  • High ethical and moral standards.
  • Must be 18 years old to work in Heavy Industry

Duties and Responsibilities

  • Obtain samples and perform necessary tests on various concrete and aggregate products. Compares results against job specifications. Provides advice on remedial action if materials do not meet specifications.
  • Visually inspects aggregate sand and other materials being produced or stored at mills plants or quarries to ascertain quality.
  • Assist in preparing concrete mix designs preparing trial batches and aggregate submittals.
  • Assist mixer drivers in determining quality and consistency of concrete.
  • Make adjustments on materials and check batching and mixing of concrete.
  • Advise production supervisors as to the quality of concrete aggregate manufactured at the respective quarries.
  • Prepares samples of products for customers and testing laboratories and may deliver to assure safe arrival.
  • Prepares mix designs and batch plant cards for the concrete division.
  • Conduct tests related to checking concrete yields on the batch plant. Adjusts the batch plant weights to compensate for changes in material moisture content and specific gravity.
  • Makes concrete test cylinders and conducts tests to measure strength of concrete.
  • Records and maintains test data and other required information. This includes both written records and data input into a personal computer.
  • Performs necessary housekeeping functions in laboratory area.
  • Performs daily maintenance on lab and test equipment.
  • Performs duties in an approved and safe manner.
  • Any additional tasks and responsibilities that may be assigned.
  • Always work safely and take action to prevent any and all unsafe actions processes and behaviors.

Knowledge Skills and Abilities

  • Works in varying environments from air-conditioned offices to hot dusty muddy field conditions.
  • Must be able to stand for long periods of time.
  • Must be able to climb ladders and stairs and withstand heights.
  • Must be able to lift and carry materials to be tested weighing up to 60 pounds.
  • Must possess a valid Hawaii State Drivers License and be able to drive an automobile or pick-up truck.
  • Must be able to use a wheelbarrow loaded with up to three cubic feet (approximately 450 pounds) of ready-mix concrete.
  • Operates concrete testing equipment and other office equipment
  • Must be able to work overtime and on weekends as required.
  • Must be able to meet tight project deadlines while maintaining quality results in their work.
  • Competency in the use of personal computer various software programs and other office equipment.


Required Experience:

IC


About Company

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Knife River provides construction materials and contracting services in the western, central, and southern U.S. Looking for a reliable construction company to build the roads, bridges, and airport runways that connect you to where you want to go? Look no further than Knife River!

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