Supervisor - Quality Control About the Role Are you a technical leader who is passionate about quality, continuous improvement, and helping teams achieve excellence? We are seeking a Supervisor - Quality Control to lead our quality assurance and testing programs across South Dakota and Northern Wyoming. This position plays a critical role in ensuring our industrial minerals, construction aggregates, ready-mix concrete, and precast concrete products consistently meet the highest standards of quality, performance, and compliance. As the leader of our quality team, you will oversee laboratory operations, support technical problem-solving, guide certification and regulatory compliance efforts, and collaborate with operations, sales, and product development teams to deliver exceptional products and customer satisfaction. The ideal candidate combines strong technical expertise with proven leadership skills and a passion for building high-performing teams. What We Offer At our company, quality is more than a standard—it's a commitment. We are proud to provide an environment where innovation, accountability, safety, and professional growth are valued.

Our benefits package may include:

• Competitive salary and incentive opportunities
• Comprehensive health, dental, and vision insurance
• 401(k) with company match
• Paid time off and paid holidays
• Company-paid life insurance
• Professional development and certification support
• Career advancement opportunities within a growing organization
• A collaborative and team-oriented culture
• The opportunity to make a meaningful impact across multiple operations and product lines What We're Looking For We're looking for a leader who can combine technical knowledge, operational insight, and people leadership to drive quality excellence throughout the organization. Qualifications
• Bachelor's degree in Materials Science, Geology, Chemistry, Construction Management, Engineering, or a related technical field. Equivalent relevant experience will be considered in lieu of a degree.
• Experience in quality assurance, technical services, compliance, operations, or sales within the industrial minerals, aggregates, concrete, construction materials, or related industries
• Demonstrated leadership experience, preferably supporting multiple locations or teams
• Strong analytical, organizational, and communication skills
• Professional certifications such as ACI, PCI, ASTM, or similar credentials preferred
• Hands-on experience with materials testing, quality control programs, laboratory operations, or field-testing environments Desired Skills & Attributes
• Passion for safety, quality, and continuous improvement
• Ability to lead, mentor, and develop technical professionals
• Strong problem-solving and troubleshooting capabilities
• Experience managing quality systems, audits, and certification programs
• Ability to collaborate effectively across operations, sales, engineering, and leadership teams
• Strong decision-making skills and attention to detail
• Commitment to delivering exceptional customer and product outcomes Key Responsibilities
• Lead quality control laboratories and a team of laboratory and field technicians
• Foster a culture focused on safety, accountability, and continuous improvement
• Ensure products consistently meet customer specifications, regulatory requirements, and industry standards
• Oversee testing programs, sample management, reporting, and quality documentation
• Manage compliance with certification programs including

PCI, ACI, AASHTO, NSF

60, and customer-specific requirements

• Lead certification audits, regulatory inspections, and renewal processes
• Serve as the company's primary technical resource for industrial minerals, aggregates, and concrete performance
• Direct technical investigations, corrective actions, and process improvement initiatives
• Support research and development efforts through testing, analysis, and technical expertise
• Partner with operations, sales, and marketing teams to ensure product performance and customer satisfaction Ready to Take the Next Step?

If you're ready to lead quality initiatives that impact products, customers, and communities across the region, we invite you to apply. This is an opportunity to join a respected organization where technical expertise is valued, leadership is encouraged, and your work directly contributes to the success of our operations and customers. If you're passionate about quality, innovation, and building high-performing teams, we'd like to hear from you. Apply today and help shape the future of quality excellence in our industrial minerals, aggregates, and concrete operations.