Quality Control Technician

Minimum Requirements

• High school graduate or GED equivalent.


• Valid Hawaii State driver’s 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 Driver’s 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.