Technical Services Intern Summer 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 Technical Services Intern is responsible for tasks and projects related to testing, gradation, and quality control of aggregate, asphalt, and ready-mix products.

Main Responsibilities

• Read, understand, and have a good working knowledge of the basic specifications, principles, and products associated with the construction / aggregate / concrete / asphalt industry
• Inspect products for quality, identify and take corrective action as necessary
• Ensure that accurate test results are reported daily
• Review and analyze test results to determine causes of nonconformity with product specifications as required
• Ensure all quality control operations and activities are conducted in conformance with company policies, regulatory agencies and acceptable working practices are in compliance with standards
• Recommend measures to improve quality control methods, equipment, performance, service, safety and quality of products
• Other duties as assigned

Education and / or Work Experience

Skills

Physical Requirements

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 :

Please contact Colas Inc. at 973-290-9082 or send an email toColasRecruiter@colasinc.com.