Knife River Corporation · 14 hours ago
Quality Control Technicians
Cheyenne, WY
Full-time
Onsite
Entry Level
2+ years expKnife River Corporation is one of the largest construction materials producers in the country, dedicated to a people-first approach. They are seeking Seasonal Quality Control Technicians responsible for collecting and testing samples of construction materials to ensure compliance with specifications.
Building MaterialConstructionConsulting
Responsibilities
Safely perform laboratory and field testing on aggregate, asphalt, and concrete materials while following all safety policies and maintaining a clean work environment
Collect and identify material samples; document and compile statistical test data
Conduct required material tests, including gradations, incinerations, rice tests, Marshall, Superpave, percent‑crushed, and related procedures
Lift material samples up to 50 lbs
Use basic computer applications (Excel, PowerPoint, Word) for documentation and reporting
Evaluate test data to determine material quality relative to project specifications
Apply problem‑solving skills to recommend corrective or alternative actions based on test results
Perform mathematical calculations and accurately interpret results
Maintain laboratory equipment and perform daily housekeeping tasks
Conduct both in‑process and finished inspections
Communicate effectively (verbal, written, listening) with team members, supervisors, and customers, even during high‑stress situations; maintain professionalism and positive customer relations
Perform standardized tests according to ASTM, AASHTO, and state DOT procedures
Maintain a valid driver’s license in accordance with company policy
Carry out additional duties as assigned
Qualification
Required
Preferably 2+ years of experience in aggregate or concrete materials testing (training available for qualified candidates)
Ability to obtain and maintain a valid driver's license per state and federal regulations
Strong attention to detail and aptitude with mathematical calculations
Self‑motivated with strong organizational and multitasking abilities
Ability to accurately document, log, and report test results in a timely and organized manner
Availability to work flexible shifts, including overtime, some Saturdays, and up to 7 days per week as required; must be able to travel for short periods
Ability to obtain or maintain relevant certifications (e.g., WYDOT, ACI, AASHTO, NRMCA)
Ability to pass written and practical exams for WMTC Aggregate and Asphalt certifications, and ACI Concrete Testing certification
Proficiency in basic mathematics, including unit conversions, percentages, and material‑property calculations
Strong organizational skills to manage multiple tasks in a fast‑paced environment
Ability to work in all types of weather conditions
Benefits
401(k)
COMPANY PAID medical, dental and vision benefits for employees and their dependents.
Paid Holidays after 30 days
Paid time off (PTO) offered after 90 days successful employment.
Company
Knife River Corporation
Knife River is a contracting and construction materials supplying company that deals with marine, highway, and concrete construction.
1001-5000 employees
Funding
Current Stage
Public CompanyTotal Funding
$277.56M2023-11-06Post Ipo Secondary· $277.56M
2023-06-01IPO
Leadership Team
Glenn R. Pladsen
Chief Excellence Officer
Recent News
2025-12-15
2025-12-15
Morningstar.com
2025-12-05
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