Demo

Core Drill Operator

State of Missouri
Jefferson, MO Full Time
POSTED ON 12/17/2025
AVAILABLE BEFORE 2/16/2026
Job Summary - Why you’ll love this position

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
Why you’ll love this position:

The core drill operator operates a drill power control center and leads a drilling crew responsible for obtaining material samples and data for subsurface investigations. Responsibilities are performed under general supervision.

Responsibilities - What you’ll do

What you'll do:

  • Leads crews in drilling activities necessary to obtain material samples and data for subsurface investigations.
  • Directs the selection, set up, and dismantling of drilling location.
  • Operates power control center from drilling station to raise and lower mast, install pipe, casing, core barrels and drill rods, govern speed of rotation, bit penetration rate, and drilling fluid pressure.
  • Supervises removal, packing, and identification of cores, and creates a geological logging of boring holes.
  • Maintains inventory, equipment, and vehicle records.
Qualifications - All you need for success Minimum Qualifications:
  • High School Diploma or GED/HiSET
  • Valid Class A Commercial Driver's License with tanker endorsement, no air brake restrictions, and interstate status (either Excepted Interstate [EI] or Non-Excepted Interstate [NI]).
  • Five years of experience in exploration drilling.
  • OSHA 10-Hour Certification required within 90 days.
  • Successful completion of a work simulation examination and a medical-physical examination.
Special Working Conditions:
  • 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.
  • Job may require operation of vehicles to plow snow and spread ice control materials

Preferred Qualifications:

  • Department of Natural Resources Certification for monitoring well installations.
Job Details - More reasons to love this position

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.

Contact Details - If you have questions or require any accommodations to participate in the application or interview process please contact:

cohrmocareers@modot.mo.gov

#LI-CC1

The State of Missouri is an equal opportunity employer and is committed to developing and maintaining a talented workforce.

Salary.com Estimation for Core Drill Operator in Jefferson, MO
$54,069 to $70,446
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