Mobile Commercial Diesel Technician

Lufkin/Angelina County Chamber of Commerce; Lufkin (TX); On-site; USD 50,000 - 70,000; Full time

Job summary

The Lufkin/Angelina County Chamber of Commerce is seeking a Mobile Commercial Diesel Technician responsible for diagnosing, repairing, and maintaining diesel engines in commercial vehicles. The role involves working directly with customers and performing on-site repairs, ensuring vehicle uptime and customer satisfaction.

The ideal candidate will have a high school diploma, technical certification preferred, and a minimum of 3-5 years of experience. Strong knowledge of diesel engine systems and excellent communication skills are essential. This full-time role provides an opportunity to work in a dynamic service environment.

Qualifications

• Minimum 3-5 years of experience as a diesel technician, focusing on commercial vehicles.
• Strong knowledge of diesel engine systems, electrical, hydraulic, and air systems.
• Valid driver's license and clean driving record (CDL preferred but not required).

Responsibilities

• Diagnose and repair diesel engines and systems for commercial trucks.
• Perform preventative maintenance and inspections on diesel engines.
• Provide excellent customer service and communicate vehicle status.

Skills

Problem-solving skills

Customer service skills

Attention to detail

Time management

Education

High school diploma or equivalent

Technical certification in diesel technology

Tools

Freightliner DiagnosticLink

Cummins Insite

Job description

As a Mobile Commercial Diesel Technician, you will be responsible for diagnosing, repairing, and maintaining diesel engines (Cat/Cummins/Detroit), systems, and components for a wide range of commercial vehicles. You will be working in the field, directly with customers, providing on-site repairs and maintenance. This is a critical role for ensuring vehicle uptime and customer satisfaction.

Job Type: Full-time

What You’ll Do:

• Diagnose & repair diesel engines (Cat, Cummins, Detroit)
• Perform mobile, on-site service & repairs
• Handle preventative maintenance & inspections
• Troubleshoot electrical, hydraulic & air systems
• Use diagnostic software and work directly with customers

Key Responsibilities:

• Diagnose and repair diesel engines and systems, including electrical and mechanical components, for commercial trucks and vehicles.
• Perform preventative maintenance and inspections on diesel engines and related equipment.
• Use diagnostic tools and software to troubleshoot engine and system issues.
• Complete field service repairs and maintain service records in a timely and accurate manner.
• Provide excellent customer service, clearly communicating with customers about the status of their vehicles and the repairs needed.
• Adhere to company safety protocols and maintain a clean, organized work environment, both in the service truck and at customer sites.
• Collaborate with the dealership service team to ensure efficient scheduling and resolution of customer issues.
• Travel to customer locations within the region to perform on-site repairs.

Requirements:

• High school diploma or equivalent; technical certification in diesel technology or related field preferred.
• Minimum 3-5 years of experience as a diesel technician, with a focus on commercial vehicles.
• Strong knowledge of diesel engine systems, electrical, hydraulic, and air systems.
• Proficient in using diagnostic tools and software (e.g., Freightliner DiagnosticLink, Cummins Insite, etc.).
• Valid driver’s license and clean driving record (CDL preferred but not required).
• Excellent problem‑solving skills and attention to detail.
• Ability to work independently and manage time efficiently in a mobile service environment.
• Strong communication and customer service skills.