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Field Service Mechanic; Diesel, Hydraulics, Electrical; Frederick,MD

Job in Frederick, Frederick County, Maryland, 21701, USA
Listing for: VetJobs
Full Time position
Listed on 2026-11-05
Job specializations:
  • Trades / Skilled Labor
    Heavy Equipment Mechanic, Field/Service Technician, Diesel Mechanic
Salary/Wage Range or Industry Benchmark: 36 - 46 USD Hourly USD 36.00 46.00 HOUR
Job Description & How to Apply Below
Position: Field Service Mechanic (Diesel, Hydraulics, Electrical) - Frederick,MD
Job Description

ATTENTION MILITARY AFFILIATED JOB SEEKERS - Our organization works with partner companies to source qualified talent for their open roles. The following position is available to Veterans, Transitioning Military, National Guard and Reserve Members, Military Spouses, Wounded Warriors, and their Caregivers. If you have the required skill set, education requirements, and experience,

Unless specifically stated otherwise, this role is "On-Site" at the location detailed in the job post.

Salary Range

$36.00 To $46.00 Hourly

Company Overview

Custom Truck One Source (CTOS) is seeking an experienced Field Service Technician to support customers throughout Baltimore, Hagerstown, and DC region.

You’ll be the go‑to expert diagnosing and repairing specialized utility trucks and equipment in the field, including bucket trucks, digger derricks, cranes, service trucks, and other utility and construction equipment.

CTOS supplies a fully equipped utility truck, including a crane, welder, and compressor. Qualified candidates must have tools, a valid driver’s license, a good driving record, and be willing to work overtime and travel as needed.

Class B or A CDL is highly desired.

CTOS provides a fully equipped service truck. (Crane, Compressor, Welder, Phone, Computer)

Perform inspections, troubleshooting, parts replacement, and repairs on rental, customer, and company units.

Summary

Primary responsibility is to perform vehicle troubleshooting, repair and maintenance work on chassis and track mounted aerials, digger derricks, cranes, high rail, and other equipment, in accordance with dealer and factory standards, in the field.

Essential Duties and Responsibilities
  • Reports to Service Manager, who will provide brief description of issues and supporting information related to the vehicle.
  • Read and interpret equipment manuals and repair orders/instructions to perform required maintenance and service. (Must have the ability to utilize laptop, etc. to be able to access needed information and perform diagnostic tests.)
  • Performs work as outlined in work instructions set forth by Service Manager; efficiently, accurately, and in accordance with Custom Truck One Source standards.
  • Diagnosis and repair LMI Diagnostics (Load Moment Indicator) and CAN bus (Controller Area Network)
  • Experience troubleshooting and repair of Utility trucks & Equipment including electrical and hydraulics.
  • Inspects and services vehicles and makes repairs and adjustments both at the service center and in the field.
  • Verify work performed, road test vehicles as necessary.
  • Prepare inspection reports, repair orders (recording service time and parts costs) and timecards completely and accurately.
  • Tag all warranty and core parts for return.
  • Advises management immediately if additional work is needed, if work outlined is not needed, or if repairs cannot be completed within the time promised.
  • Attends CTOS safety training and follows all safety requirements.
  • Attends CTOS and factory
    -sponsored training classes.
  • Understand and follow federal, state and local regulations such as those governing the disposal of hazardous wastes.
  • Communicate easily with customers and internal departments to ensure minimal equipment downtime.
  • Flexibility to travel beyond the area of coverage, based on business need.
  • Work closely with Service Manager to grow and improve customer satisfaction.
  • Additional duties or responsibilities as designated by the Service Manager.
Auto req

486053

Minimum Education Required

High School/GED

Additional Qualifications / Responsibilities

Preferred

Skills:

  • Electrical, schematic / blueprints, hydraulic, welding, and related experience
  • Experience with Quick Serve, DTNA, or related diagnostic software.
  • DOT, ANSI, and Dielectric testing desired
Requirements
  • High School…
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