Mobile Heavy Equipment Diesel Technician -- Crane & Aerial Systems

Job Description

Job Description

About the role

Picture your day starting from your home base near Las Vegas. Your fully outfitted service truck is stocked and ready — crane, welder, compressor on board. Dispatch pings you to a customer yard where an aerial device is down. You arrive, diagnose diesel, hydraulic, and electrical issues, source parts, and get the unit back to work. By afternoon, you’re performing a DOT inspection and dielectric test on a digger derrick, documenting results and advising on preventative maintenance. That’s a typical day for a Mobile Heavy Equipment Diesel Technician supporting our utility, telecom, rail, and construction partners.

At Custom Truck One Source (CTOS) , we’ve spent 30+ years building a national footprint — 40+ locations, 2,600 employees, and a 10,000+ unit fleet — dedicated to specialized utility trucks and equipment. Join the team customers call first when uptime matters most.

What you’ll do

• Diagnose, repair, and maintain aerial, construction, and light-to-heavy-duty truck equipment, including bucket trucks, digger derricks, cranes, and service trucks, primarily at customer sites.
• Troubleshoot and service diesel engines, hydraulic circuits, and electrical/ECU systems.
• Complete inspections and compliance work such as DOT inspections and dielectric testing, and perform parts replacement and component rebuilds on CTOS rental and customer-owned assets.

Where you’ll work

• Operate as a remote road mechanic working largely within a 150-mile radius of Las Vegas.
• Travel overnight approximately 25–50% across NV, UT, AZ, and CA.

What we provide

• A fully equipped service truck (crane, welder, compressor).
• Competitive pay with overtime eligibility.
• Comprehensive benefits, 401(k) match, paid time off, tool program, and more.

What you bring

• 7+ years of combined shop and field experience.
• Background with utility, construction (yellow iron), or heavy equipment (CAT, Deere, Komatsu) and medium/heavy-duty trucks.
• Strong mechanical aptitude across diesel, hydraulics, and electrical systems.
• Ability to work independently in the field and collaborate effectively with a team; self-sufficient and organized.
• Valid driver’s license required; CDL Class B a plus; personal tools required.

Core proficiencies

• DOT Medical Card
• Driver's License
• Construction Equipment Maintenance
• Electrical Systems Diagnostics & Repair
• Diesel Engine Systems
• Light Vehicle Diesel Engines
• Diesel & Heavy Equipment Systems
• Hydraulic Systems & Components
• Electrical Systems & Diagnostics (Heavy Equipment)
• Equipment Diagnostics & Troubleshooting
• Crane & Lifting Equipment Systems
• Aerial & Utility Equipment Systems
• DOT & Equipment Inspection Compliance

Equipment and technology you’ll touch

• Boom Truck (Altec, Elliott, National Crane, Load King, Terex)
• Aerial Devices (Terex, Altec, Elliott, Versalift)
• Boom Crane (Manitowoc, Link-Belt)
• After Treatment Systems (DPF, DEF) (Cummins, Detroit Diesel, Bosch)

Compliance

Custom Truck One Source is an Equal Opportunity Employer