Demo

Core Drill Assistant Series

State of Missouri
Jefferson, MO Full Time
POSTED ON 7/31/2026
AVAILABLE BEFORE 8/29/2026
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 Office, 1617 Missouri Boulevard, Jefferson City, MO

This position may be filled at one of the three levels based on knowledge, skills, and abilities. The entry salary is posted above, with the intermediate starting salary of $48,307.68, and a senior starting salary of $52,172.40.

This position is eligible for a temporary emergency operations adjustment of $3 to $6 per hour, depending on the area of operation, when handling winter/emergency operations activities.

Why You’ll Love This Position

The core drill assistant drives water and supply trucks to work sites, assists in setting up and preparing drilling equipment to obtain material samples and data for subsurface investigations, and performs a variety of functions to assist in core drill team during operations; or mobilizes an auger and/or pavement drill to obtain information for soil surveys. Responsibilities are performed under direct 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

  • Maintains and services tools and equipment.
  • Transports equipment and supplies throughout the state to drilling location.
  • Collects soil and rock samples in coordination with geotechnical staff.
  • Mobilizes an auger and/or pavement drill to different locations to obtain soil and/or pavement samples for further testing.
  • Performs other responsibilities as required or assigned.

Minimum Qualifications:

  • High school diploma or GED/HiSET.
  • A passing grade on the written portion of the commercial driver’s license (CDL) exam is required prior to the hire date. Must pass the driving portion of the Class A CDL exam with tanker endorsement, no air brake restriction, and interstate status (either Excepted Interstate [EI] or Non-Excepted Interstate [NI]) within 60 days of hire into the position.
  • OSHA 10-Hour certification required within 90 days.
  • Successful completion of a work examination and a medical-physical examination.

Special Working Conditions:

  • Requires travel within the state of Missouri Monday through Thursday, leaving Jefferson City Monday morning and returning Thursday (four 10-hour days).
  • Must be capable of working individually in all districts in the state of Missouri.
  • Lodging provided and meals consumed while traveling are reimbursable.
  • Job requires continuous, statewide, overnight travel.
  • Job requires heavy physical exertion and effort.
  • Job requires exposure to physical hazards, health and safety risks, and/or adverse or otherwise undesirable characteristics in the environment, including duties in heavy traffic areas, on barges in bodies of water, on or near heavy equipment or machinery, and on steep slopes and muddy ground.
  • Job may require operation of vehicles to plow snow and spread ice control materials.

Preferred Qualifications

  • MoDOT is looking for team members who align with our preferred employee qualities. Please click the following link to learn more about our preferred employee qualities. Preferred Employee Qualities | Missouri Department of Transportation

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

cohrmocareers@modot.mo.gov

Salary : $48,308 - $52,172

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