Materials Technician - Central District

State of Missouri; Jefferson City (MO); On-site; USD 42,000 - 54,000; Full time

Job summary

State of Missouri, Central District Laboratory in Jefferson City, MO, is seeking a materials technician to perform semi-skilled technical duties in sampling, testing, and inspection of materials used in highway construction and maintenance projects. Duties include field sampling, lab testing, data entry, and reporting, with opportunities for CAREER-LADDER advancement.

Position involves outdoor and laboratory work, physical effort, and occasional statewide travel; OSHA 10-Hour certification

Qualifications

• High School Diploma or GED/HiSET completed.
• OSHA 10-Hour Certification required within 90 days.
• Successful completion of a work simulation examination and a medical-physical examination.

Responsibilities

• Conducts field sampling and testing of aggregates for gradation and quality; checks quality of aggregates by determining percentages of deleterious material; checks for stockpiling procedures, oversize aggregates, and contamination; determines if aggregates are being produced from approved ledges or sources; may approve or reject material intended for use; and keeps records and reports on inspection rates and aggregates used for each project or for maintenance use.
• Inspects proportioning of materials at concrete plants and calibrates and verifies scales and dispensers at concrete plants; and assists in inspecting plants producing bituminous mixtures.
• Performs laboratory testing of soils, aggregates, cements, bituminous mixtures, new products, or general materials; utilizes computers, electronic systems, and testing equipment for data entry, data collection, analysis, and preparation of laboratory testing reports.
• Performs calculations, reports test results, notifies supervisor of deviations from standards, and maintains records of testing activities.
• Performs duties outlined in the quality systems manuals, including completing competency exam evaluations, verifying results, demonstrating test procedures, and calibrating equipment; assists in quality control/quality assurance reference testing.

Skills

Basic math

Education

High School Diploma or GED

Job description

Note for internal applicants: Successful candidates already at rates above the posted salary will be evaluated on an individual basis to determine final salary outcome.

Job Location: Central District Office, 1511 Missouri Blvd, Jefferson City, MO 65109

If selected for further consideration, you will be contacted to schedule an interview for October 28, 2026.

Why You’ll Love This Position

The materials technician performs semi-skilled technical duties in the sampling, testing, and/or inspection of materials used in highway construction and maintenance projects; responsibilities are performed on location throughout the state and/or at the Central Laboratory. Responsibilities are performed under moderate supervision.

MoDOT will bring candidates onto the team as entry-level, intermediate, or senior level, based on your skills and experience. This opening is for one of our CAREER-LADDER positions which offers the opportunity for career advancement without having to participate in the competitive selection interview process. As you continue to learn, acquire new skills, and gain experience, you can be promoted to a higher-level position.

What You’ll Do

• Conducts field sampling and testing of aggregates for gradation and quality; checks quality of aggregates by determining percentages of deleterious material; checks for stockpiling procedures, oversize aggregates, and contamination; determines if aggregates are being produced from approved ledges or sources; may approve or reject material intended for use; and keeps records and reports on inspection rates and aggregates used for each project or for maintenance use.
• Inspects proportioning of materials at concrete plants and calibrates and verifies scales and dispensers at concrete plants; and assists in inspecting plants producing bituminous mixtures.
• Performs laboratory testing of soils, aggregates, cements, bituminous mixtures, new products, or general materials; utilizes computers, electronic systems, and testing equipment for data entry, data collection, analysis, and preparation of laboratory testing reports.
• Performs calculations, reports test results, notifies supervisor of deviations from standards, and maintains records of testing activities.
• Performs duties outlined in the quality systems manuals, including completing competency exam evaluations, verifying results, demonstrating test procedures, and calibrating equipment; assists in quality control/quality assurance reference testing.

Minimum Qualifications

All you need for success:

• High School Diploma or GED/HiSET.
• OSHA 10-Hour Certification required within 90 days.
• Successful completion of a work simulation examination and a medical-physical examination.

Special Working Conditions

• Job is physically demanding and requires prolonged periods of standing and frequent lifting.
• Job requires outdoor and/or laboratory work that involves exposure to physical hazards, health and safety risks, and/or adverse or otherwise undesirable characteristics in the environment, including (but not limited to) exposure to hazardous chemicals, dust, fumes, hot ovens, power tools, and other equipment.
• Basic math skills, consistent with high school level algebra, will be necessary to perform many of this title’s duties.
• Job may require occasional, statewide, overnight travel.
• Job may require operation of vehicles to plow snow and spread ice control materials.

Preferred Qualifications

• None

More Reasons To Love This Position

MoDOT offers an excellent benefits package that includes a defined pension plan, generous amounts of leave and holiday time, and eligibility for health insurance coverage. Visit our CAREERS page to explore all we have to offer. Your total compensation is more than the dollars you receive in your paycheck. To help demonstrate the value of working for MoDOT, we have created an interactive Total Compensation Calculator. This tool provides a comprehensive view of benefits and more that are offered to prospective employees. The Total Compensation Calculator and other applicant resources can be found HERE.

At MoDOT you will play a key role in maintaining the seventh largest highway system in the United States. We value team players who are open-minded and work well with others to accomplish goals and fulfill our mission of safety, service, and stability. We see the growth of our team members as an investment, both in MoDOT's future and yours. If you're looking for diverse opportunities, challenging work, and a flexible environment, we want to talk to you about joining our winning team. MoDOT operates on shared values and your success in our organization depends upon modeling these values. CLICK HERE to view our mission, values, and tangible results. If you embrace these values, we welcome your application.

If You Have Questions About This Position Please Contact

Central District Human Resources