Job Application for Quality Control Technician at Knight’s Companies Inc.

Since 1969, Knight’s Companies has grown from a single septic tank pumping truck into a trusted, family-owned leader in construction and manufacturing services. Built on quality, integrity, and customer service, Knight’s Companies is committed to excellence across its Redi-Mix, Precast, Trucking, and Pumping operations.

Join our team as a Quality Control Technician, where you’ll play a key role in ensuring the quality and consistency of our ready-mix concrete products. In this position, you’ll work both at plant sites and job locations, performing critical testing and supporting production to meet customer specifications and industry standards.

What You'll Do:

Perform quality control testing on concrete and aggregates, including slump, air content, unit weight, and compressive strength
Monitor production and delivery performance to ensure consistent product quality
Coordinate with plant and dispatch teams to implement necessary quality adjustments
Conduct trial batches and evaluate mix designs ahead of project needs
Oversee and collaborate with third-party testing services
Maintain accurate testing records and documentation
Ensure compliance with NRMCA Plant Certification requirements
Maintain lab equipment and work areas to industry standards
Uphold all safety and environmental policies
Deliver professional, customer-focused service at all times

What You Need to Be Successful:

High school diploma required; Associate's degree preferred.
Working computer knowledge; including applicable Microsoft software.
Current, valid state driver's license.
Excellent communication and organizational skills.
ACI Concrete Field Tech Level I certification required.
Minimum of 1 year experience in a quality control.
Ability to understand, interpret, and use construction specifications and concrete mix designs.
General knowledge of the properties, characteristics, and performance of concrete mixes, its components, additives, and raw materials.
Ability to work independently with minimal supervision.
Ability to accurately understand, analyze, and interpret information.
Proficiency in reading, understanding, speaking, writing, and using the English language.
Ability to accurately perform basic mathematical functions including adding, subtracting, multiplication, division, percentage computations and basic area and volume computations using fractions, decimal equivalents or whole numbers, and basic area, volume, unit weight, and total weight computations.
Ability to work as part of a team.
Ability to accept and follow direction as provided by managers, and ask questions when needed.
Ability to work overtime as needed.

#ZR

What We Offer:

Competitive pay
Medical, Dental, and Vision Insurance
Paid Time Off (PTO) and Paid Holidays
401(k) with Company Match
Short-Term Disability (STD)
Long-Term Disability (LTD)
Company-Paid Life Insurance
Voluntary insurance programs including Life, Critical Illness, Hospitalization, Accident and Pet Insurance.

Interested in opportunities in other Knight’s Companies locations?

We’re hiring across our other markets:

Lowcountry: Charleston/Jedburg/St. George/Moncks Corner
Midlands: Columbia/Lexington/Irmo/Blythewood/Lugoff/Sumter
South: Aiken/Hampton/Beaufort/Okatie/Richmond Hill/Savannah

Visit our careers page to explore all openings: www.knightscompanies.com

Join our team and be part of a company that values safety, hard work and professionalism. We offer a supportive work environment, opportunities for growth, and comprehensive benefits to help you succeed in your career.

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Quality Control Technician

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