Mobile Heavy-Duty Diesel Service Specialist (Utility Fleet)

Company: Custom Truck One Source (CTOS) | Address: 4045 Highway Five, Cabot, Arkansas 72023

Mission: Rebuilding America Starts Here.

• Work with leading utility, telecom, construction, forestry, oil, and rail customers.
• Hands-on impact with utility and pipeline equipment: aerial devices, digger derricks, cranes, material handlers, pole trailers, and more.
• Operate from a CTOS-provided utility truck outfitted with a crane, welder, compressor, plus a company phone and computer.
• Advance your craft with CTOS and factory-sponsored training.

• Diagnose and repair in the field and at the service center across utility trucks and specialty equipment.
• Use manuals and repair orders to guide work; connect a laptop to perform diagnostic testing.
• Identify and resolve LMI (Load Moment Indicator) and CAN bus (Controller Area Network) issues.
• Execute electrical and hydraulic troubleshooting and component repairs.
• Perform inspections and road tests to verify repairs meet CTOS quality standards.
• Complete accurate inspection reports, repair orders, timecards, and track parts costs.
• Tag all warranty and core parts for return processing.
• Escalate scope changes, unnecessary work, or timing risks to the Service Manager promptly.
• Follow all CTOS safety requirements and attend required safety training.
• Comply with federal, state, and local regulations for hazardous waste.
• Collaborate with customers and internal teams to minimize downtime and elevate satisfaction.
• Travel overnight as needed and flex beyond your normal coverage area based on business need.
• Support Service Manager initiatives; take on additional duties as assigned.

• High school diploma or GED.
• ~5 years of related shop and field experience.
• Valid driver’s license (CDL Class B a plus) and your own mechanics tools.
• Strong documentation habits using software; reliable with schedules and deadlines.

• Electrical, hydraulic, welding, and ability to read schematics/blueprints.
• Experience with Quick Serve, DTNA, or similar OEM diagnostic software.
• Familiarity with DOT, ANSI, and dielectric testing.

• 401(k) with employer match
• Medical, dental, vision, and life insurance
• Paid vacation, sick time, and holidays
• Short-term and long-term disability
• Employee Stock Purchase Plan
• Partner discounts
• Investment in employee development and training

• DOT Medical Card
• Driver's License
• Heavy Equipment Repair
• Electrical Schematics
• Hydraulics Experience
• Electrical Systems Diagnostics & Repair
• Vehicle Electronics & Computer Controls
• Engine Performance & Drivability
• Diesel Engine Systems
• Brake & Suspension Systems
• Automotive Repair
• Electrical / Electronic Systems
• Light Vehicle Diesel Engines
• Business-to-Business (B2B)
• Field Service Readiness
• Current CDL License
• Basic Computer Skills

CTOS Cabot supports utility and pipeline work with a broad lineup—Aerials, digger derricks, material handlers, pole trailers, and more—serving some of the nation’s largest companies across utilities, telecom, construction, forestry, oil, and rail.

Custom Truck One Source is an Equal Opportunity Employer