QUALITY CONTROL AGGREGATE FIELD TECHNICIAN

Knife River Corporation; Sauk Rapids (MN); On-site; USD 34,440 - 41,328; Full time

Benefits offered by this job

Health Savings Account

401(k) with Company Match

Paid Time Off

Short-term Disability

Employee Assistance Program

Job summary

A construction materials company is seeking a Quality Control Aggregate Field Technician in Sauk Rapids, Minnesota. This full-time role involves conducting tests on aggregate materials to ensure they meet specifications. Ideal candidates will have a high school diploma and experience in the construction industry. The position offers competitive pay of $25-$30 per hour, with excellent benefits including health savings accounts, 401(k) matching, and paid time off. Join a team that values safety and quality.

Qualifications

• Must maintain proper certifications and licensure.
• A minimum of 3 years of experience in testing within the construction industry is preferred.
• Ability to maintain a valid driving record where applicable.

Responsibilities

• Safely collect and test samples of materials to ensure conformance to specifications.
• Conduct inspections and tests to maintain quality standards.
• Communicate test results and collaborate with team members.

Skills

Ability to operate testing machines

Good communication skills

Team player

Self-motivated

Education

High school graduate or GED equivalent

Tools

Nuclear densometer

Job description

QUALITY CONTROL AGGREGATE FIELD TECHNICIAN

Job Category: Quality Control

Requisition Number: QUALI003296

• Posted : March 19, 2026
• Full-Time
• On-site

Locations

Showing 1 location

SAUK RAPIDS, MN 56379, USA

• Pay or shift range: $25 USD to $30 USD. The estimated range is the budgeted amount for this position. Final offers are based on various factors, including skill set, experience, location, qualifications and other job-related reasons.

Description

Good Pay! Good Benefits! Good People! Knife River is a PEOPLE-first company. Our team members are key to our success, and we are committed to giving them the tools, training, and time to do their jobs productively and go home safely each day. Please consider joining our growing team today!

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. 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.

ROLE OVERVIEW:

Apply early for our seasonal roles—interviews are beginning soon!

Our season kicks off in April and runs through November, with the possibility of extending into December. As a seasonal team member, you’ll enjoy winters off to travel, hunt, fish, or pursue the activities you love—while still keeping your benefits all year long.

Responsible to safely collect samples of crushed stone, aggregate, sand, or gravel and test for conformance to specifications. Other duties as assigned by supervisor.

DUTIES AND/OR RESPONSIBILITIES (summary of components that make up the job)

• Tests and inspects products at various states of production process and compiles and evaluates statistical data to determine and maintain quality and reliability of products.
• Selects products for tests at specifies stages in production process and tests products for variety of qualities such as dimensions, performance and mechanical, electrical or chemical characteristics.
• Perform necessary tests (i.e. gradations, etc.) testing products for variety of qualities such as dimensions and performance. May weigh, dry and reweigh samples to determine moisture content of samples.
• Records test data, applying statistical quality control procedures. May plot origin of samples on site map.
• Records test data, applying statistical quality control procedures. Evaluates data and writes reports to validate or indicate deviations from existing standards. May prepare graphs or charts of data or enter data into computer for analysis.
• Recommends modifications of existing quality or production standards to achieve optimum quality within limits of equipment capability.
• May set up and perform destructive and nondestructive tests on materials, parts or products to measure performance, life or material characteristics.
• Examines samples for presence of foreign matter and variation from color standard.
• Notifies management when materials do not meet specifications.
• Maintain lab and equipment; perform daily housekeeping.
• Conduct finished and in-process inspections.
• 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 and respectful of others. Communicate test results to appropriate stakeholders.
• Ensure work activities comply with OSHA, EPA, safety and environmental regulations.
• Travel is required. Gather samples from specified locations and transports samples to laboratory when applicable.
• Running tests onsite at pits or quarries, or other remote labs.
• Always work safely and take action to prevent any and all unsafe actions, processes, and behaviors.
• Must maintain the highest level of moral and ethical standards at all times.
• Perform other duties as assigned.

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

• High school graduate or GED equivalent.
• Maintain proper certifications, licensure and acceptable driving record (where applicable)
• Able to operate testing machines and equipment such as a nuclear densometer
• High ethical and moral standards.

PREFERRED REQUIREMENTS (preferred requirements i.e. certifications, software use, etc.)

• 3 + years experience in all aspects of testing in the general construction industry
• MNDOT Aggregate Production Certification

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

ADDITIONAL INFORMATION:

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 checks.

All applications are submitted online. If you are having issues completing the application, please come to the office for assistance.