Quality Control Technician - Ready Mix

Job Summary

The Quality Control Technician is responsible for quality control testing, reporting and evaluation of construction products for conformance to job specifications. The individual will perform field and laboratory testing.


At CalPortland, we’re proud to offer a comprehensive, competitive benefits package that provides health and financial support to our most important resources: our employees.  Your benefits are an important part of your overall compensation at CalPortland. That’s why we give you a wide range of benefits to choose from.  All regular full time employees may enroll in a variety of health and welfare plans including medical, dental and vision plans.  Other benefits include life insurance, disability coverage, employee assistance program, and retirement program.  The company also has a variety of voluntary benefits for employees to choose from.


$24.50 - $26.50/ hr DOE


  • Test and inspect concrete mixes and make field adjustments to maintain specifications
  • Prepare laboratory trial mixtures
  • Coordinate work with other regional management personnel, such as Sales, Operations, Customer Service and Dispatch to better serve the customer
  • Weigh samples and check sizes; take slump and air test for specification compliance
  • Maintain clear and accurate records on products quality and activities
  • Accurately enter field and lab reports on test data and activities into computer
  • Assist with trial batches (i.e. preparing and weighing up material, running applicable ACI tests, etc.)
  • Perform all aspects of stripping, curing, capping and compression testing
  • Report concrete cylinder strength tests according to ACI standards
  • Handle and provide solutions for project problems and complaints
  • Track aggregate graduations and mix adjustments
  • Provide job site quality control and quality assurance as related to ready mix concrete slump, air, unit weight
  • Support delivery and customer service in the field; professionally resolve customer complaints
  • The job duties described herein are not exhaustive and may be supplemented from time to time as necessary without prior notice


High School Diploma or equivalent preferred


  • Job requires the following motions: climbing, stooping, bending, squatting, frequent lifting up to 75 pounds, occasional lifting of 100 pounds, stretching, sitting, walking on uneven ground and stairs 
  • Ability to work in extremes of hot or cold; able to work in wet environments
  • Must be able to work flexible hours with varying start and stop times
  • Overtime work will be required as needed
  • Must meet OSHA 10 guidelines and be able to follow all CalPortland Safety Policies
  • ANSI approved PPE will be provided and must be used when required
  • Must be able to speak, read and write in English
  • Must have a valid driver’s license and be insurable
  • If no current certifications, you will be required to obtain ACI Aggregate and ACI Strength technician within 6 months of hire date and ACI Field Grade within 12 months of hire date (at the company’s expense)·         QC Technician will be subject to random drug and alcohol screens as required by company
  • Travel may be required at times


  • Intermediate skills in Microsoft Office Suite and SAP software
  • 1 + years previous experience in a concrete QC field environment and/or lab environment
  • Certifications in ACI Field Grade I, ACI Lab I & II, ACI Strength Testing, and ACI Aggregates testing

Conditions of Employment

Successful candidate must submit to post-offer pre-employment physical examination, drug/alcohol screen, and background check. Some positions require FMCSA regulated on-going drug and alcohol testing.




Irwindale, CA, US, 91706

Job Req ID:  12031
Job Type:  Hourly - Full-Time

Nearest Major Market: Los Angeles

Job Segment: Testing, QC, QA, Quality Assurance, Technology, Quality, Customer Service