Field Drilling Assistant: Core Drilling & Data Collection

Martin Marietta; Garner (NC); On-site; USD 52,000 - 72,000; Full time

Job summary

Martin Marietta is seeking a motivated, safety-focused Assistant Core Driller to join the Exploration Services team based in Garner, North Carolina. The assistant supports the Core Driller in the safe transport, setup, operation, maintenance, and demobilization of drilling equipment during exploration projects nationwide.

This role provides hands-on training in drilling operations, sample collection, equipment maintenance, and field safety, preparing you to advance to a Core Driller position

Qualifications

• High school diploma or equivalent required.
• Valid driver's license with satisfactory driving record.
• Ability and willingness to obtain Class A CDL.
• Ability to pass pre-employment drug screen, background check, and DOT physical.
• Strong mechanical aptitude and willingness to learn drilling equipment maintenance and repair.
• Ability to work as part of a team and follow direction from the Core Driller.
• Ability to work 10 to 12-hour shifts in physically demanding environments.
• Ability to lift 50–75 pounds repeatedly.
• Willingness to travel extensively within the United States for multi-day field assignments.

Responsibilities

• Promote and uphold safety, environmental stewardship, and operational excellence.
• Assist with transportation, mobilization, operation, and demobilization of drilling equipment and support vehicles.
• Support daily drilling operations under the Core Driller's direction.
• Assist with rig setup, alignment, drilling fluid management, rod handling, core retrieval, and site housekeeping.
• Collect, label, package, photograph, and transport geological core samples and field data.
• Maintain core boxes and assist with sample handling to ensure data quality.
• Perform routine inspections, preventative maintenance, cleaning, lubrication, and minor repairs on drilling rigs and support equipment.
• Assist with troubleshooting mechanical and operational issues to minimize downtime.
• Load, unload, secure, and transport equipment in compliance with DOT and company policies.
• Maintain field records, inventories, maintenance logs, and project documentation.
• Ensure clean, organized, and safe work environments at sites and facilities.
• Participate in pre-job inspections, hazard assessments, safety meetings, and training activities.
• Communicate effectively with Core Drillers, geologists, project managers, and mine personnel.
• Develop skills for progression into the Core Driller role.

Skills

Safety mindset

Mechanical aptitude

Teamwork

Communication

Willingness to learn

Travel willingness

Education

High school diploma or equivalent

Job description

Martin Marietta is seeking a motivated, safety-focused Assistant Core Driller to join the Exploration Services team based in Garner, North Carolina. The assistant supports the Core Driller in the safe transport, setup, operation, maintenance, and demobilization of drilling equipment during exploration projects nationwide.

This role provides hands-on training in drilling operations, sample collection, equipment maintenance, and field safety, preparing you to advance to a Core Driller position