Heavy Equipment Field Service Specialist (Utility Fleets)

CTOS - Trucks & Equipment; Frederick (MD); On-site; USD 70,000 - 90,000; Full time

Benefits offered by this job

Company-provided service truck

Remote field-based role

Overtime opportunities

Competitive compensation

Job summary

Custom Truck One Source (CTOS) seeks a Heavy Equipment Field Service Specialist to diagnose and repair utility fleets in the Baltimore, Hagerstown, and DC area. You will travel in a company-provided service truck, performing mechanical, hydraulic, electrical, and pneumatic work and testing post-repair for safety and performance.

The role emphasizes independent field work, customer communication, and thorough documentation, with opportunities for overtime and career growth within CTOS’s extensive

Qualifications

• Class B CDL required with clean driving record.
• Strong troubleshooting across mechanical, hydraulic and electrical systems.
• Ability to work independently in the field and manage time & parts.

Responsibilities

• Diagnose, troubleshoot, and repair heavy equipment at customer sites.
• Perform mechanical, hydraulic, electrical, and pneumatic system repairs.
• Conduct preventative maintenance to maximize uptime.
• Document work thoroughly and communicate status to customers and internal teams.

Skills

CDL Class B

Troubleshooting

Independent field work

Documentation & time management

Customer service

Tools

Diagnostic tools

Job description

Heavy Equipment Field Service Specialist (Utility Fleets)Ready to be the person crews call first? At Custom Truck One Source (CTOS), we’re looking for a field specialist to keep utility fleets moving across Baltimore, Hagerstown, and Washington, DC.Is This You?Do you enjoy diagnosing mechanical, hydraulic, electrical, and pneumatic systems in the field?Can you confidently tackle repairs on bucket trucks, digger derricks, cranes, and service trucks—then road test to confirm the fix?Are you organized, great with documentation, and comfortable communicating solutions directly to customers?Do you want a remote, field-based role with a company-provided truck and steady work?What You’ll DoDiagnose, troubleshoot, and repair heavy equipment, utility equipment, and trucks at customer sites.Perform mechanical, hydraulic, electrical, and pneumatic system repairs.Conduct preventative maintenance and inspections to maximize uptime.Road test post-repair to ensure safety and performance.Document work thoroughly and communicate status updates with customers and internal teams.Independently manage service calls, time, and parts inventory in a company-provided service truck.Partner with the CTOS Field Service team to deliver consistent, high-quality support.What You BringExperience as a Field Service, Heavy Equipment, Truck, or Utility Equipment Technician.Class B CDL required.Strong troubleshooting skills across mechanical, hydraulic, and electrical systems.Demonstrated ability to work independently in the field.Excellent organization, documentation, and time-management.Professional communication and customer service skills.Valid driver’s license with an acceptable driving record.Willingness to travel throughout Baltimore, Hagerstown, and Washington, DC, with occasional overnight travel.Equipment & Tech You’ll Work WithDiesel engines: Detroit Diesel, Cummins, PACCARDiesel vehicles and box trucks: Ford, Peterbilt, Kenworth, Freightliner, Isuzu, HinoCranes, boom cranes, and aerial devices (bucket trucks)Boom trucks: Terex, Altec, Elliott, National Crane, Load KingDigger derricks: Terex, Altec, ElliottRefuse and service trucksPerks & BenefitsRemote, field-based role—work from home and dispatch to customer sites.Company-provided, fully equipped service truck (crane, compressor, welder, phone, computer).Opportunity to work on specialized utility and heavy equipment.Stable workload serving major accounts and additional CTOS clients across the region.Competitive compensation and comprehensive benefits package.Overtime opportunities available.Career growth with an industry leader operating in 40+ locations with 2,600+ employees.Core ProficienciesHeavy Equipment RepairHydraulics ExperienceLight Vehicle Diesel EnginesDiesel & Heavy Equipment SystemsElectrical Systems & Diagnostics (Heavy Equipment)Current CDL LicenseAbout CTOSCustom Truck One Source (CTOS) is a leader in specialized trucks, equipment, parts, rentals, upfitting, aftermarket accessories, and service. For more than 30 years, CTOS has supported the utility, telecommunications, rail, forestry, oil & gas, and construction markets with innovative gear and exceptional customer service.If you’re a skilled technician who enjoys independence, complex diagnostics, and customer-facing work, apply today and make an impact with CTOS.