Mobile Service Technician

About the role

The Mobile Service Technician will diagnose problems and perform identified repairs and routine preventive maintenance on semi‑trucks using a mobile service truck, tools, and inventory. The mobile service truck, tools, and inventory must be maintained in serviceable condition at all times per company policy and procedures.

Responsibilities

• Provide technical service to vehicles and equipment, including troubleshooting, electrical and diagnostic services.
• Read repair orders, observe and listen to vehicle operation to determine malfunction and plan work procedures.
• Perform general and detailed repair of all trucks, engines, and components, including overhauling gas or diesel engines.
• Install injectors, pistons, liners, cam shafts, cylinder heads, rod and main bearings, oil pans, clutches, fan hubs, differentials, fifth wheels, brakes, change or recharge batteries, and replace transmissions and other parts.
• Examine protective guards, loose bolts, and specified safety devices on trucks and make adjustments as needed.
• Lubricate moving parts and drive repaired vehicle to verify conformance to specifications.
• Advise the Service Supervisor if additional repair work is necessary.
• Tag all warranty parts and returns to warranty clerk.
• Maintain a neat and orderly working area and proper handling of company tools.
• Follow safe work practices and procedures, use safety equipment when required, respond to suggestions for working safely and seek assistance when necessary.
• Attend training classes and keep abreast of factory technical bulletins.
• Other duties assigned by manager.
• Determine vehicle condition by conducting inspections and diagnostic tests, identifying worn and damaged parts with focus on safety, quality, and customer uptime.
• Correct vehicle deficiencies by removing, repairing, adjusting, overhauling, assembling, disassembling, and replacing major assemblies, sub‑assemblies, components, parts, or systems (e.g., power and drive trains, electrical, air conditioning, fuel, emission, brake, steering, hydraulics).
• Perform machine‑shop operations, making adjustments and alignments including bearing loads, gear tooth contact, valve mechanisms, governors, oil systems, control linkages, clutches, and traction units.
• Maintain certification in OEM products through training opportunities.

Qualifications

• High school diploma or GED required; related technical school training preferred.
• Three to five years of commercial truck technical service experience.
• Engine certifications preferred (e.g., Cummins, Detroit, International).
• Necessary tools to perform job responsibilities.
• Ability to work and learn independently.
• Strong written and verbal communication skills.
• Ability to use various Windows‑based computer software; experience with engine software a plus.
• Valid commercial driver’s license preferred.

Physical and Environmental Conditions

Duties are performed throughout the inside and outside of the building(s). The employee is exposed to dirt, dust, heat, cold, noise, vibration, fumes, odors, wetness, humidity, and sometimes darkness. The role requires standing, walking, kneeling, squatting, crawling, bending, twisting, and frequent climbing and lifting of up to and over 80 pounds. Constant visual requirements include close vision and the ability to adjust focus. The environment presents potential mechanical, chemical, electrical, and fire hazards.