Quality Control Technician - Portable

Duininck has been building careers as long as we’ve been building roads. Since 1926, people have come here to learn a trade, grow their skills, and find work they’re proud of. We’re a family-owned company, and that shapes how we treat our people – with respect, investment, and a genuine interest in where your career goes from here.

Duininck is a third-generation family-led company focused on building strong communities through our relationships with customers, employees, subcontractors and vendors. We have a diverse portfolio of businesses managing projects at any scale.

Duininck Concrete, headquartered in West Central Minnesota, serves its clients as industry experts, providing guidance and support for projects of any scale.

This seasonal, full-time position comes with a strong benefits package including:

• Competitive pay of $35/hour
• Paid Time Off
• Strong Health Plans to choose from
• Dental & Vision Plans, Company Paid Life insurance & Short-Term Disability
• Position specific personal protective equipment provided
• 401K with company match, and more!

This position with Duininck Concrete offers the opportunity to perform field and lab tests on ready-mix concrete to ensure compliance with ACI, ASTM, and DOT standards as part of our portable crew. Must be open to working at various job sites for extended periods (overnight travel required). This entry-level role provides hands-on experience in concrete testing and mix performance evaluation.

• Conduct slump, air content, unit weight, and temperature tests.
• Collect and document concrete samples from production sites.
• Assist with mix adjustments to maintain quality.
• Maintain and calibrate testing equipment.
• Accurately record and report test results.
• Follow all safety protocols and procedures.
• Must be willing to work early mornings, some nights, and some weekends
• Travel for potentially extended periods.

• Individuals who work safely and have the courage to speak up if you see unsafe behavior or conditions.
• Willingness to travel and work on‑site for extended periods of time
• High school diploma or equivalent.
• Ability to obtain ACI Concrete Field-Testing Technician – Grade I certification within 12 months of hire.
• Ability to obtain MnDOT Plant/Agg/Field/Strength certification within 12 months of hire.
• Strong attention to detail and problem‑solving skills.
• Ability to lift 50+ lbs and work outdoors
• Valid driver’s license (regularly required to drive and navigate to job sites)
• MnDOT Plant/Agg/Field/Strength certified

Duininck is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, creed, religion, color, national origin, sex, age, disability, genetics, marital status, sexual orientation, gender identity, familial status, status with regard to public assistance, membership or activity in a local human rights commission, protected veteran status or citizenship status. If you would like more information on your EEO rights under the law, .