Mobile Heavy Equipment & Diesel Mechanic

Custom Truck One Source; Fort Worth (TX); On-site; USD 52,000 - 78,000; Full time

Benefits offered by this job

401(k) match

Medical, dental, vision, and life 보험

Paid vacation

Sick time and holidays

Short‑term & long‑term disability

Employee Stock Purchase Plan

Uniforms, safety boot & glasses

Tool discounts

Job summary

Custom Truck One Source in Fort Worth, TX is seeking a skilled field technician to diagnose, repair, and maintain our customers' specialized truck-mounted equipment. Most work is performed at customer sites with occasional shop support.

You will handle hydraulic, mechanical, and electrical systems, read manuals and schematics, use diagnostic software, and document repairs. A high school diploma, 5+ years of experience, and a valid license are required; CDL preferred.

Qualifications

• Electrical, hydraulics, welding and schematic/blueprint reading are preferred skills.
• Diagnostician software experience (QuickServe, DTNA) is advantageous.
• DOT/ANSI testing experience is a plus.

Responsibilities

• Diagnose, repair, and maintain bucket trucks, digger derricks, cranes, hydraulic equipment.
• Perform inspections, preventive maintenance, and on-site diagnostics.
• Read manuals, schematics and repair orders; interpret documentation.

Skills

Electrical

Hydraulics

Welding

Schematic reading

Education

High school diploma or GED

Tools

Diagnostic software (QuickServe, DTNA)

Job description

Custom Truck One Source 7200 Jack Newell Blvd S, Fort Worth, TX 76118

We equip you for success with:

• A company‑provided utility service truck (crane, welder, compressor)
• Company phone, computer, and diagnostic tools
• Strong benefits, paid time off, 401(k) match, uniforms, safety gear allowance, tool discounts, and more
• You bring your mechanical skills, your own tools, and a valid driver’s license (CDL preferred), and we’ll provide everything else you need to thrive.

What You’ll Do

You’ll be the go‑to expert for customers across your region—diagnosing, repairing, and maintaining highly specialized truck‑mounted equipment. Most work is performed on customer sites, with occasional shop support.

In this role, you'll:

• Troubleshoot, repair, and maintain
  • Bucket trucks / aerial devices
  • Digger derricks
  • Truck‑mounted cranes (LMI & CAN‑bus systems)
  • Hydraulic utility equipment & major components
  • Heavy‑ and light‑duty truck chassis, diesel, and electrical systems
• Perform inspections, preventive maintenance, and on‑site diagnostics
• Read and interpret manuals, schematics, and repair orders
• Use laptops and diagnostic software to identify issues
• Complete documentation accurately (repair orders, timecards, inspection forms)
• Communicate with customers and CTOS teams to minimize downtime
• Follow all safety, environmental, and regulatory requirements
• Participate in ongoing CTOS and manufacturer training
• Travel within and occasionally beyond your assigned territory

What Makes You a Great Fit

• You enjoy working independently and solving problems in real time
• You’re experienced with hydraulic, mechanical, and electrical systems
• You’re comfortable interacting with customers and working in the field
• You want a role where every day is different

Preferred Skills

• Electrical, hydraulics, welding, and schematic/blueprint reading
• Diagnostic software experience (QuickServe, DTNA, etc.)
• DOT, ANSI, and dielectric testing experience

Requirements

• High school diploma or GED
• 5+ years of related experience (field or shop tech)
• Valid driver’s license (CDL Class B preferred)
• Must provide your own mechanic tools
• Proficiency using documentation software and managing time effectively

Compensation & Benefits

• Competitive pay based on experience + overtime opportunities
• 401(k) with employer match
• Medical, dental, vision, and life insurance
• Paid vacation, sick time, and holidays
• Short‑term & long‑term disability
• Employee Stock Purchase Plan
• Uniforms, safety boot & glasses allowance
• Tool discount programs

Custom Truck One Source is an Equal Opportunity Employer committed to creating an inclusive workplace. All qualified applicants will receive consideration without regard to protected characteristics.

We do not offer sponsorship—candidates must be authorized to work in the U.S. without the need for sponsorship.