Diesel Mechanic: Lead Diagnostics & Field Repairs

CNC Oilfield Services, LLC; Dilley (TX); On-site; USD 52,000 - 82,000; Full time

Job summary

CNC Oilfield Services, LLC in Texas is seeking a qualified Diesel Mechanic to keep trucks and equipment running safely and efficiently. You’ll diagnose, repair, and maintain diesel engines, transmissions, brakes, hydraulics, and electrical systems, with emphasis on quality workmanship and safety.

You’ll work in a dynamic field environment, perform preventive maintenance, and assist with documentation and parts management. Experienced or ASE-certified candidates are welcome; CDL beneficial.

Qualifications

• Experience diagnosing and repairing diesel engines and trucks.
• Comfort with maintenance records and documentation.
• Ability to work in fast-paced field environments.
• Preferred ASE Master Technician or equivalent certifications.
• Ability to mentor junior technicians.

Responsibilities

• Diagnose diesel engines and equipment using diagnostic tools.
• Repair/replace engines, transmissions, brakes, steering, hydraulics, and electrical components.
• Perform preventive maintenance and scheduled services.
• Respond to field repairs and emergency calls.
• Document repairs and maintain maintenance records.
• Manage parts inventory and equipment readiness.
• Collaborate with operations, dispatch, drivers, and supervisors.

Skills

Diesel engine troubleshooting

Hydraulic systems

Pneumatic systems

Electrical diagnostics

Engine/transmission repairs

Leadership & communication

Advanced diagnostic software

Reading manuals & schematics

Education

Mechanical or Automotive Engineering degree/diploma

Air Brake Certification

Air Conditioning Certification

CDL or Chauffeur's License

Tools

Maintenance software

Diagnostic tools

Job description

CNC Oilfield Services, LLC in Texas is seeking a qualified Diesel Mechanic to keep trucks and equipment running safely and efficiently. You’ll diagnose, repair, and maintain diesel engines, transmissions, brakes, hydraulics, and electrical systems, with emphasis on quality workmanship and safety.

You’ll work in a dynamic field environment, perform preventive maintenance, and assist with documentation and parts management. Experienced or ASE-certified candidates are welcome; CDL beneficial.