Mobile Heavy Equipment & Diesel Mechanic

Custom Truck One Source, Inc.; Fort Worth, Northern (TX, KY); Hybrid; USD 39,000 - 55,000; Full time

Benefits offered by this job

Benefits package

Paid time off

401(k) match

Uniforms provided

Safety gear allowance

Tool discounts

Job summary

Custom Truck One Source is looking for a skilled field technician in Fort Worth, TX to diagnose, repair, and maintain specialized truck-mounted equipment. Most work is on customer sites with some shop support.

You will handle heavy equipment, hydraulics, and electrical systems and travel within your territory as needed. The ideal candidate has 5+ years of experience, a high school diploma or GED, and a CDL Class B preferred.

Qualifications

• Hands-on experience with hydraulic, electrical, and mechanical systems.
• Strong diagnostic and manual-reading abilities.
• Ability to work independently in field service environments.

Responsibilities

• Troubleshoot, repair, and maintain bucket trucks and aerial devices.
• Repair digger derricks and truck-mounted cranes (LMI & CAN-bus systems).
• Work on hydraulic utility equipment and major components.
• Service 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.
• Travel within and occasionally beyond your assigned territory.

Skills

Electrical systems

Hydraulics

Welding

Blueprint reading

Education

High school diploma or GED

Tools

Diagnostic software (QuickServe, DTNA)

Own mechanic tools

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Full Time Non-Exempt [Hourly] Technical Fort Worth, TX, Fort Worth, TX, US

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

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.