Diesel Field Service Technician

4 Horn Management; Pasadena (TX); On-site; USD 42,000 - 64,000; Full time

Job summary

National Tank & Equipment in Pasadena, TX, is seeking a mechanic to inspect, maintain, and repair rental equipment. You will document conditions, perform preventive maintenance, and use work orders to record labor and parts.

You will diagnose mechanical, fuel, electrical, and equipment issues in the field, communicate findings, and ensure repairs keep equipment safe and ready for service. Local travel and team collaboration are required.

Qualifications

• High school diploma or equivalent preferred.
• 2-4 years of diesel mechanic experience in diesel engines, industrial maintenance, automotive repair, heavy equipment, pumps or related systems.
• Read equipment information and complete service documentation.
• Valid driver's license for more than 3 years with a moderately clean driving record; DOT physical required.
• Possess or can obtain and maintain a TWIC card.
• Hands-on field service experience and strong customer service skills.
• Provide personal tools and demonstrate mechanical aptitude including safe use of tools.

Responsibilities

• Inspect pumps, engines, tanks, and related rental equipment and document condition.
• Complete preventive maintenance, repairs, and functional checks.
• Use work orders to record labor, parts, findings, and completed work.
• Maintain tools, service vehicles, and work areas in good order.
• Diagnose mechanical, fuel, electrical, and equipment-performance concerns appropriate to the role level.
• Perform field service and communicate findings, repair needs, and equipment status.
• Verify repairs and confirm equipment is safe and ready for service.
• Escalate complex issues and learn from senior mechanics and technical resources.
• Work closely with service, operations, and yard teams to support rental readiness.
• Provide professional, respectful support at customer locations.
• Participate actively in training and skills development.
• Follow PPE, lifting, tool, environmental, driving, and site-safety requirements.
• Stop and report unsafe conditions, equipment damage, spills, or hazards promptly.

Skills

Customer service

Mechanical aptitude

Field service

Safety awareness

Education

High school diploma or equivalent

DOT physical required

TWIC card

Tools

Hand tools

Power tools

Diagnostic tools

Job description

National Tank & Equipment in Pasadena, TX, is seeking a mechanic to inspect, maintain, and repair rental equipment. You will document conditions, perform preventive maintenance, and use work orders to record labor and parts.

You will diagnose mechanical, fuel, electrical, and equipment issues in the field, communicate findings, and ensure repairs keep equipment safe and ready for service. Local travel and team collaboration are required.