Field Service Technician, Utility Fleet (Diesel/Hydraulics)

Job Description

Job DescriptionReady to be the expert customers call first?

Do you enjoy solving tough hydraulic or electrical problems out in the field? Are you comfortable jumping from a bucket truck service call to a crane inspection — then hitting the road for a quick overnight to keep a jobsite running? If so, you’ll thrive as a Field Service Technician supporting CTOS’s specialized utility fleet.

Why CTOS

For 30+ years, Custom Truck One Source (CTOS) has supported utility, telecom, rail, and construction markets with a 10,000+ unit fleet, 40+ locations, and 2,600 teammates. We’re growing fast and investing in mobile technicians who want autonomy, variety, and the backing of a national leader.

What you’ll tackle

• On-site service of aerial devices, construction equipment, and light-to-heavy-duty trucks — including bucket trucks, digger derricks, cranes, and service trucks.
• End-to-end troubleshooting of diesel, hydraulic, and electrical systems; from diagnostics to component replacement and repair.
• Compliance tasks such as DOT inspections and dielectric testing, plus documentation and customer communication.

Your territory

• Home-based, remote road mechanic covering most work within 150 miles of Las Vegas.
• Expect 25–50% overnight travel throughout NV, UT, AZ, and CA.

What’s in it for you

• Fully equipped service truck (crane, welder, compressor) so you can get the job done anywhere.
• Competitive pay plus overtime.
• Full benefits, 401(k) match, PTO, tool program, and more.

What you bring

• 7+ years in shop and field roles with utility, construction (yellow iron), or heavy equipment — experience with CAT, Deere, Komatsu, and medium/heavy-duty trucks strongly preferred.
• Mastery of diesel, hydraulic, and electrical systems.
• Independent, organized, and team-minded; comfortable making calls in the field.
• Valid driver’s license required; CDL Class B is a plus; personal tools required.

Show us your strengths

• 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

Tools and platforms you’ll encounter

• 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)

Equal Opportunity

Custom Truck One Source is an Equal Opportunity Employer