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Job Description
QC Technician 1 Sully-Miller Holding Co. $26.00 / hr 2600 Avenida Barbosa (Show on map) Jun 08, 2026 Blue Diamond Materials is one of the companies that operates within Sully-Miller Contracting Co., the Colas USA subsidiary that operates throughout Southern California. We are part of Sully-Miller Companies consisting of Sully-Miller Contracting Co., Blue Diamond Materials and United Rock Products. Each company supports the other. United Rock provides the aggregate, Blue Diamond Materials provides the hot and warm mix asphalt manufacturing, and Sully-Miller Contracting executes the projects. Blue Diamond has five asphalt plants located throughout Southern California- Irwindale, Inglewood, South Gate, Sun Valley and Victorville. To learn more about Blue Diamond visit www.bluediamondasphalt.com. The Colas USA Family of Companies provides competitive pay, outstanding benefits, career advancement opportunities, professional education, and extensive training for every employee. We pride ourselves on upholding the highest standards of safety, environmental conservation, and ethical conduct as we strive to grow our infrastructure products and services through empowering and developing our people, fostering innovation, utilizing new technology, and maximizing vertical integration at all levels of the company's value chain. To learn more about the Colas USA Family of Companies, please visitwww.colasusa.com. Compensation $26 per hour Job Summary The Quality Control Technician I is responsible for sampling, testing, and reporting on construction materials-including but not limited to hot mix asphalt, aggregates, soils, and concrete-to ensure compliance with project specifications and industry standards. Main Responsibilities
Perform precise testing and inspection of construction materials to guarantee quality and compliance
Accurately measure, document, and report test results in a timely manner
Develop proficiency in sampling, testing, and calculating values for asphalt, aggregates, and other materials
Identify product quality issues, troubleshoot problems, and implement corrective actions
Analyze test results to determine causes of nonconformities and recommend solutions
Gain competence in AASHTO, ASTM, and Caltrans test methods
Familiarize yourself with Green Book, FAA, Caltrans Standard Specifications, and other applicable regulations
Be flexible and available for overtime, including nights and weekends, as needed
Perform additional duties as assigned
Education and/or
Work Experience Requirements:
Valid CA Driver's License with an excellent driving record Skills
Ability to be precise and accurate when taking measurements and completing test forms
Ability to follow direction with excellent follow through within a timely manner
Ability to learn specific QC computer programs
Ability to lift 50 lbs. during various times of the day
Dependable self-starter with good organization skills
Organizational and problem-solving skills
Verbal and written communication skills
Legible handwriting
Proficient in all Microsoft Office Products
Proficient math skills
Physical Requirements
Ability to utilize hands and fingers in order to type and carry reports
Ability to stand, walk, and reach with arms and hands throughout the workday
Ability to climb, balance, stoop, kneel, and crouch
Ability to see clearly or with assistance via necessary correction
Wearing and maintaining personal protective equipment (PPE) required
Frequently exposed to all weather conditions
Frequent exposure to working around moving equipment and machinery
Frequent exposure to dust, airborne particles, etc. Colas Inc. and its subsidiaries are an Equal Opportunity Employer. For details on the specifics of this commitment, please click here to view theEEO document.
If you are an individual with a disability and require a reasonable accommodation to: to meet the requirements of the role in which you are applying
complete any part of the application process
access or use the online application process and need an alternative method for applying Please contact Colas Inc. at 973-290-9082 or send an email toColasRecruiter@colasinc.com.