Quality Control Technician

Job ID : 516411

Preferred Materials - Concrete Division, part of CRH South Division, is a leading supplier of ready mix concrete, concrete block, rebar and building materials in the state of Florida, providing the highest product quality and service in the construction industry. With headquarters in Tampa, Florida, and operations in five key Florida markets, Preferred Materials provides municipalities, developers, architects, engineers, contractors, builders and suppliers a wide variety of construction materials and products. Our employees make Preferred Materials a great place to work. We promote a strong safety culture, where employees take responsibility for their own safety.

Preferred Materials, Inc. is seeking a Quality Control Technician. Candidates for this position ideally would have 2 - 5 years experience testing concrete, but willing to train. Ideally, candidates should be in possession of ACI Field Grade I certification.

Responsibilities include testing plastic and hardened concrete, and the raw materials used to produce concrete. Candidates should have some experience testing gradation, specific gravity, and absorption of fine and coarse aggregates per ASTM specifications.

Key Responsibilities (Essential Duties and Functions)

• Ensure Health & Safety standards are met by complying with legislation, company policies and promoting a safe work environment
• Must be able to communicate details of concrete mix adherence to specifications with a Sr QC Technician or a QC Manager in order to determine course of action for mix design adjustments in the field.
• Must be able to communicate concrete mix design issues to a Sr QC Technician or QC Manager from the field in order to determine if loads should be accepted or rejected.
• Collect samples from concrete or aggregate plants.
• Perform field tests, trail batches, densities of materials and other properties.
• Processes samples using a variety of testing equipment and procedures.
• Preforms Research and development on new materials to be used.
• Records data and enters information into computer systems.
• Must be able to obtain and maintain the following ACI certifications in a timely manner :

ACI Field Testing Technician Certification Level 1.

Education / Experience :

High School diploma or GED, some advanced education preferred but not required.

Qualifications

To perform this job successfully, an individual must be able to perform each essential duty according to Preferred Materials guidelines and standards.

Work Requirements

What CRH Offers You

About CRH

CRH has a long and proud heritage. We are a collection of hundreds of family businesses, regional companies and large enterprises that together form the CRH family. CRH operates in a decentralized, diversified structure that allows you to work in a small company environment while having the career opportunities of a large international organization.

If you're up for a rewarding challenge, we invite you to take the first step and apply today! Once you click apply now, you will be brought to our official employment application. Please complete your online profile and it will be sent to the hiring manager. Our system allows you to view and track your status 24 hours a day. Thank you for your interest!

Preferred Materials, Inc., a CRH Company, is an Affirmative Action and Equal Opportunity Employer.

EOE / Vet / Disability

CRH is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, status as a protected veteran or any other characteristic protected under applicable federal, state, or local law.

Date : Nov 20, 2025