Utility Fleet Field Service Mechanic - Aerial & Hydraulic Systems

Job Description

Job Description

A day in this role

You start your morning with a call from the Service Manager outlining the next job: a utility truck with intermittent CAN bus faults and an LMI alert at a customer site. With your laptop and diagnostic software, you arrive on location, interpret the fault data, reference manuals, verify the concern, and get to work. By afternoon, you’ve completed adjustments, road-tested the vehicle, documented time and parts, and tagged warranty cores for return. Before wrapping up, you brief the customer and Service Manager on findings, next steps, and any additional work recommended.

About Custom Truck One Source (CTOS)

CTOS designs, assembles, sells, rents, and services specialized trucks, cranes, and other heavy equipment for leading utilities, telecom, construction, forestry, oil, and rail companies across the U.S.

What you’ll handle

• Receive work direction and job details from the Service Manager; clarify scope, timing, and customer needs.
• Use repair orders, equipment manuals, and digital resources (laptop-based diagnostics) to perform maintenance and service.
• Troubleshoot and repair LMI (Load Moment Indicator) systems and CAN bus (Controller Area Network) issues.
• Diagnose and fix electrical and hydraulic problems on utility trucks and related equipment.
• Inspect, service, and repair equipment both in the field and at the service center.
• Road-test vehicles to validate repairs and confirm performance.
• Complete inspection reports, repair orders, and timecards accurately, capturing labor and parts.
• Tag and manage warranty and core components for proper return.
• Immediately advise management when additional work is needed, the requested work is unnecessary, or completion timelines change.
• Attend and follow CTOS safety training and requirements; adhere to federal, state, and local regulations including hazardous waste disposal.
• Participate in CTOS and factory-sponsored technical training to stay current.
• Communicate effectively with customers and internal teams to minimize downtime and improve satisfaction.
• Travel beyond your normal coverage area as business needs require.
• Collaborate closely with the Service Manager on continuous service improvements and customer experience.
• Perform other related duties as assigned.

Preferred skills

• Hands-on experience with electrical systems, schematics/blueprints, hydraulics, and welding.
• Familiarity with Quick Serve, DTNA, or comparable OEM diagnostic platforms.
• Exposure to DOT, ANSI, and dielectric testing practices.

What you’ll bring

• High school diploma or GED.
• 5+ years of related experience (shop and field technician work).
• Valid CDL (Class A or B).
• Personal hand tools appropriate to the trade.
• Ability to document work using software and consistently meet schedules and deadlines.

Work environment & physical demands

• Regular outdoor work in wet/humid conditions; occasional exposure to extreme heat or cold; moderate to loud noise levels.
• Professionalism, positive attitude, and punctual attendance.
• Lift, carry, push, and pull; bend and stoop; safely handle up to 50 lbs.
• Comfort working at heights and performing manual labor.
• Manual dexterity for tools and equipment operation.

Benefits

• 401(k) with employer match
• Comprehensive health coverage including dental, vision, and life insurance
• Company-paid health and wellness programs
• Paid vacation, sick time, and holidays
• Short- and long-term disability (STD/LTD)
• Partner discounts (including tool discount programs)
• Investment in employee development, including

Custom Truck One Source is an Equal Opportunity Employer