Lead Diamond Core Driller – Field Ops & Safety Leader

00002 Martin Marietta Materials, Inc.; Garner (IA); On-site; USD 34,000 - 44,000; Full time

Job summary

Martin Marietta is seeking an experienced Core Driller to join the Exploration Services team in Garner, NC. You will lead daily drilling operations, transport and maintain diamond core drilling equipment, and ensure safety and compliance on site.

This role requires traveling across the United States, with extended field deployments and overnight stays. You will mentor Assistant Drillers, document field data, and uphold high standards of workmanship and safety in demanding outdoor environments.

Qualifications

• High school diploma or GED required.
• Valid Class A CDL with Tanker endorsement and clean driving record.
• Pass pre-employment drug screen, background check, and DOT physical.
• Strong mechanical aptitude and ability to repair drilling equipment.
• Ability to lead crews and work independently or in teams.
• Excellent communication, organization, and problem-solving skills.
• Able to work 10–12 hour shifts in demanding outdoor environments.
• Able to lift 50–75 lbs repeatedly and travel extensively.

Responsibilities

• Safely transport, mobilize, operate, and demobilize diamond core drilling equipment and support vehicles.
• Plan and execute drilling programs to meet production, recovery, and quality objectives.
• Supervise and direct Assistant Drillers in all drilling phases.
• Mentor, train, and evaluate Assistant Drillers for skill development.
• Collect and safeguard geological core samples and field data.
• Maintain drill logs, maintenance records, and safety documentation.
• Diagnose, troubleshoot, and perform preventative maintenance on drilling rigs and support equipment.
• Manage inventory of drilling consumables, tools, and spare parts.
• Load/unload and transport equipment in accordance with DOT requirements.
• Coordinate with geologists and project managers to meet project objectives.

Skills

Leadership

Mechanical aptitude

Communication

Team leadership

Safety focus

Education

High school diploma

Job description

Martin Marietta is seeking an experienced Core Driller to join the Exploration Services team in Garner, NC. You will lead daily drilling operations, transport and maintain diamond core drilling equipment, and ensure safety and compliance on site.

This role requires traveling across the United States, with extended field deployments and overnight stays. You will mentor Assistant Drillers, document field data, and uphold high standards of workmanship and safety in demanding outdoor environments.