QUALITY CONTROL SUPERVISOR - AGGREGATE/ASPHALT

Knife River Corporation; Sioux Falls (SD); On-site; USD 65,000 - 90,000; Full time

Benefits offered by this job

Health Savings and Flexible Spending

401(k) with Company Match

Profit Sharing

Paid Time Off

8 Paid Holidays

Company Paid Life and AD&D Insurance

Short-term Disability

Employee Assistance Program

Years of Service Recognition

Voluntary Life Insurance for Employees

Job summary

Knife River Corporation is hiring a Quality Control Supervisor for aggregate and asphalt production in Sioux Falls, SD. The role directs the QA program, coordinates testing, and ensures products meet customer specifications while controlling costs.

The position requires an associate degree or equivalent with 5 years in quality control, plus strong communication and leadership skills. Benefits are highlighted in the listing and the team emphasizes safety and career growth.

Qualifications

• Associate's degree (A.A.) or equivalent from two-year college or technical school; or 5 years quality control and mix design management.
• Proven ability to manage QA programs and coordinate testing across plants.

Responsibilities

• Develops and directs the quality assurance program to ensure product quality to standards.
• Directs testing and materials control at aggregate & asphalt plants.
• Plans and organizes training on product quality and reliability.
• Investigates customer quality complaints and coordinates corrective actions.
• Oversees labs, equipment maintenance, and housekeeping.
• Ensures OSHA, EPA, DNR and safety compliance.

Skills

Quality control

Statistical data

MS Office

Communication

Education

Associate's degree (A.A.) or equivalent

Tools

Testing equipment

Job description

QUALITY CONTROL SUPERVISOR - AGGREGATE/ASPHALT

Job Category: Quality Control

Requisition Number: QUALI004119

• Posted : November 2, 2026
• Full-Time

Locations

Showing 1 location

SIOUX FALLS, SD 57107, USA

Description

Great Pay! Great Benefits! Strong Teams! Knife River is a PEOPLE-first company. Our teams are the foundation of our success, and we're committed to providing the training, tools and support to do great work and go home safely at the end of each day. Join a team that looks out for one another and supports career growth from day one.

ROLE OVERVIEW: The QC Supervisor plans, coordinates, and directs the quality assurance program designed to ensure quality production of products consistent with established standards. They also manage the design and testing and/or aggregate/asphalt products to meet customer quality requirements at best or lowest cost.

DUTIES AND/OR RESPONSIBILITIES (summary of components that make up the job) An asterisk (*) indicates essential job functions that cannot be modified in order to fulfill the job requirements

• Develops and analyzes statistical data and product specifications to determine present standards and establish proposed quality and reliability expectancy of finished product.
• Formulates and maintains quality control objectives with production procedures in cooperation with other plant managers and sales representatives.
• Directs workers engaged in testing or materials at all aggregate & asphalt plants.
• Plans, promotes, and organizes training activities related to product quality and reliability.
• May investigate and adjust customer complaints regarding quality.
• Identify the needs, hire, train, coach and schedule personnel to meet the needs of labs at all aggregate & asphalt plants.
• Purchase parts, supplies, and new equipment while maintaining the set budget.
• Assure tests are accurately done and results are communicated in a timely manner to all stakeholders.
• Research the quality and design of materials for bidding projects, design and implement better methods, and research new techniques and equipment.
• Oversee the repairs, maintenance and housekeeping of labs and equipment.
• Communicate effectively (verbal, listening, written) and work with difficult people under high stress situations. Self-motivated, team-player with good interpersonal skills; ability to maintain positive customer relations and act courteous/respectful of others.
• Troubleshoot and problem solve situations/problems (material quality, equipment operations/repair, etc.)
• Monitor and discuss production problems with co-workers and managers/supervisors.
• Ensure OSHA< EPA, DNR, and safety and environmental regulation compliance.
• Performs other duties as assigned.

MINIMUM REQUIREMENTS (minimum educational, experience, or other relevant job requirements)

• Associate's degree (A.A.) or equivalent from two-year college or technical school; or
• 5 years quality control and mix design management; or equivalent combination of education and experience.

KNOWLEDGE, SKILLS, AND ABILITITES (types and extent of knowledge, skills or abilities an incumbent must possess to complete the job responsibilities satisfactorily)

• Excellent written and verbal communication skills.
• Strong organizational skills.
• Knowledge of MS Office (Word, Excel, Outlook).
• Able to work independently and under time constraints.
• Problem Solving ability.
• Critical thinking and project management.
• Ability to multi-task and provide team guidance.
• Communication skills, reliability, and dedication to coaching.

BENEFITS:

• Health Savings and Flexible Spending Accounts
• 401(k) with Company Match
• Profit Sharing
• Paid Time Off
• 8 Paid Holidays
• Company Paid Life and AD&D Insurance
• Short-term Disability
• Employee Assistance Program
• Years of Service Recognition
• Voluntary Life Insurance for Employees, Spouses, and Dependents
• Critical Illness Plan
• Hospital Indemnity

Knife River is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, age, color, religion, gender, gender identity, sexual orientation, national origin, disability, protected Veteran status or any other protected category under applicable state/federal laws.

Subject to pre-employment drug testing and background checks.

All applications are submitted online. If you are having issues completing the application online, please visit our main office for assistance.