Field Service Mechanic (Utility Trucks, Diesel, Cranes) - Humble, TX

Location

Humble, TX

Employment Type

Full-time

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Posted on July 7, 2026

Job Description

Overview

Custom Truck One Source (CTOS) is a 30+ year industry leader with over 40 locations and 2,500+ employees, specializing in utility, telecom, rail, and construction industries. They are hiring a Field Service Mechanic to diagnose and repair specialized utility equipment, working on various types of trucks and cranes.

Responsibilities

  • Diagnose and repair specialized utility equipment in the field.
  • Work on bucket trucks, digger derricks, cranes, service trucks, and related equipment.
  • Perform inspections, troubleshooting, parts replacement, and repairs on rental, customer, and company units.
  • Read and interpret equipment manuals and repair orders to perform required maintenance and service.
  • Diagnose and repair LMI Diagnostics and CAN bus systems.
  • Inspect and service vehicles, making repairs and adjustments both at the service center and in the field.
  • Prepare inspection reports, repair orders, and timecards completely and accurately.
  • Communicate with customers and internal departments to ensure minimal equipment downtime.
  • Attend safety training and follow all safety requirements.

Requirements

  • High School diploma or GED.
  • Five years of related experience as a Shop Tech and Field Tech.
  • Must hold a valid driver’s license (CDL Class B preferred).
  • Must have your own tools.
  • Proficient in documentation using software, meeting deadlines and schedules.
  • Experience troubleshooting and repair of utility trucks and equipment including electrical and hydraulics.

Benefits

  • 401k
  • Health Insurance
  • Dental
  • Vision
  • PTO

Additional Information

  • Position is on-site in Humble, TX.
  • Flexibility to travel beyond the area of coverage based on business need.

Benefits

401k
Health Insurance
Dental
Vision
PTO