Description Job Summary: At Knife River, we take care of our team because we know it's our people who make us successful. We are one of the 10 largest construction materials producers/contractors in the Country, and we are a PEOPLE-first company. Our team members are the key to our success, and we are committed to giving them the tools, training, and time to do their jobs productively and safely each day. Our goal is to build strong teams that, in turn, build strong communities. We are also a publicly traded company on the NYSE with the ticker symbol KNF and part of the S&P MidCap 400 index. This position is responsible for overseeing the investigation and resolution of aggregate materials quality issues. You will visit and stay at job sites, collect and analyze data, test materials, and direct the testing of materials to technicians. You will perform and report on laboratory tests on a variety of mined and constructed materials. This is a seasonal position that requires travel through Northern Minnesota and North Dakota. Use your winters off to travel, fish, hunt, or just enjoy your time while your benefits continue year-round. Lodging assistance (generally in the form of a Per Diem) is provided. Minimum Qualifications: A successful Aggregate Quality Control Supervisor will have: * A high school diploma, GED, or equivalent critical thinking skills * A valid driver's license with acceptable driving record * Preferred: 2+ years aggregate testing experience * Preferred: Aggregate Production as well as Grading and Base certifications Compensation Estimated Salary: $60,000 to $70,000 Per Year Benefits Medical, Dental, & Vision Insurance Heath Savings and Flexible Spending Accounts 401K with Company Match Profit Sharing Paid Time Off Paid Holidays Based on Active Season Short-term Disability & Life Insurance Employee Assistance Program Years of Service Recognition How to Apply: If unable to apply online, mail completed application to: ATTN HR PO Box 40 Bemidji, MN 56619 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 law. Subject to pre-employment drug testing and background check. Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities The contractor will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor's legal duty to furnish information. 41 CFR 60-1.35(c) Knife River is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, age, color, religion, sex, national origin, disability or protected Veteran status.