Diesel Mechanic

Job Description

Job Description

Incorporated in 1997, GeoTek is a full-service consulting engineering firm specializing in geotechnical engineering, construction materials testing, special inspections, and environmental consulting. We are founded on the principle of providing strong business partnerships with our clients by demonstrating a committed passion for those who demand technical advice and responsive customer service that adds value to their projects.

Our mission is to build and maintain strong business partnerships by demonstrating a committed passion for the principles of high-quality customer service and professional consultation that results in optimum value to our clients. We provide our employees with just compensation and a challenging, stable work environment that embodies ongoing opportunities for them to further their individual goals. We also aim to furnish a good return for our shareholders by consistently achieving our financial objectives.

GeoTek offers a variety of jobs to build on your professional career, with multiple offices located in Nevada, California, Idaho, Arizona, and New Mexico. Our branch offices serve more than just the state they are located in, providing services across a wide region.

Summary: Responsible for maintaining, troubleshooting, and repairing drilling rigs, support equipment, and related systems used in geotechnical, environmental, and geologic subsurface investigations. Ensures safe, reliable operation of fleet and field equipment to support timely, on-budget drilling operations. Operate in a safety-sensitive position around heavy drilling equipment, support vehicles, and construction or exploration sites with limited supervision.

Key Responsibilities:

• Inspect, maintain, and repair down-hole and surface drilling equipment (truck-mounted rigs, track rigs, auger rigs, CME/dug rigs, mud systems, pumps, winches, hydraulic systems).
• Perform preventive maintenance, scheduled servicing, and routine adjustments on engines, transmissions, hydraulics, pneumatics, and electrical systems.
• Diagnose mechanical, hydraulic, and electrical faults using hand tools, diagnostic equipment, and schematics; perform on-site repairs.
• Fabricate and install parts, fittings, and brackets; perform welding, brazing, and basic machining as needed.
• Maintain inventory of spare parts, fluids, and tooling; order replacements and manage parts storage.
• Conduct pre- and post-trip equipment inspections and complete maintenance logs and service reports.
• Assist drill crews with rig-up/rig-down, equipment troubleshooting in the field, and safe operation procedures.
• Ensure compliance with safety policies, lockout/tagout, confined space and fall protection protocols, and environmental regulations.
• Calibrate and maintain ancillary instruments (flow meters, pressure gauges, winch controllers) as required.
• Train operators in basic equipment care and report recurring issues to maintenance lead or supervisor.

Qualifications:

• High school diploma or equivalent; technical certificate, trade school, or associate degree in diesel technology, heavy equipment mechanics, or related field preferred.
• 3+ years experience maintaining heavy diesel engines, hydraulic systems, and mobile drilling equipment (or equivalent mechanical experience).
• Strong mechanical, hydraulic, and basic electrical troubleshooting skills.
• Experience with welding (MIG/TIG/Stick), fabrication, and use of machine shop tools preferred.
• Valid driver's license; CDL preferred or ability to obtain.
• OSHA 10 or 30, H2S, confined space entry, and first aid/CPR certifications desirable (or willingness to obtain).

Skills and Competencies:

• Ability to read schematics, technical manuals, and maintenance records.
• Strong problem-solving and diagnostic skills under field conditions.
• Physical stamina and ability to work outdoors in varying weather, lift heavy items (50+ lbs), climb ladders, and work in confined spaces.
• Good communication skills; able to coordinate with drilling crews and supervisors.
• Strong attention to safety, detail, and documentation.

Working Conditions:

• Field-based role with frequent travel to job sites; may require extended stays and irregular hours including nights and weekends.
• Work in remote locations and varied climates; exposure to dust, noise, and heavy equipment.
• Combination of shop-based repair work and hands-on field repairs.
• Perform physical tasks including standing, walking, climbing, balancing, stooping, kneeling, crouching, crawling, pushing, and repetitive motions
• Operate hand tools, power tools, diagnostic equipment, and welding equipment
• Lift, carry, push, and pull 50-100 lbs. throughout 8–12-hour workdays
• Work on and around drill rigs, service trucks, trailers, and equipment compartments (including underneath and inside)
• Maintain manual dexterity and hand-eye coordination for precise mechanical work
• Work in award positions, confined spaces, elevated heights, and uneven terrain
• Perform frequent bending, kneeling, squatting, overhead reaching, and prolonged standing/walking
• Wear and properly use required PPE (hard hat, safety glasses, hearing protection, respirators, gloves, fall protection, steel/composite-toe boots)

Preferred Extras:

• Experience specifically with geotechnical drilling rigs, mud systems, core barrels, and sampling tools.
• Familiarity with environmental sampling protocols and decontamination procedures.

Reporting: Reports to Drilling Manager

Compensation: Competitive hourly wage or salary based on experience; benefits may include health insurance, paid time off, retirement plan, and travel per diem.

Pay Range

$35—$45 USD

GeoTek is an Equal Opportunity Employer and considers applicants for all positions without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, veteran status, or any other characteristic protected by law.