Mobile Heavy Equipment & Diesel Mechanic

Custom Truck One Source, Inc.; Fort Worth (TX); On-site; USD 34,000 - 55,000; Full time

Benefits offered by this job

401(k) match

Uniforms

Safety gear allowance

Tool discounts

Paid time off

Healthcare coverage

Job summary

Custom Truck One Source is seeking a skilled Field Service Technician to diagnose, repair, and maintain highly specialized truck-mounted equipment in Fort Worth, TX. Most work occurs at customer sites with some shop support, requiring strong mechanical, hydraulic, and electrical aptitude.

You will perform inspections, read schematics and repair orders, and document work using laptops and diagnostic software, while traveling within the assigned territory as needed.

Qualifications

• 5+ years of field or shop technician experience.
• High school diploma or GED.
• Valid driver's license; CDL Class B preferred.
• Own mechanic tools required.
• Ability to work independently in the field.

Responsibilities

• Diagnose, repair, and maintain bucket trucks and related equipment.
• Perform inspections, preventive maintenance, and on-site diagnostics.
• Read manuals and repair orders; document work accurately.
• Travel within and beyond territory as needed.

Skills

Hydraulic systems

Electrical systems

Mechanical skills

Customer interaction

Diagnostics software

Education

High school diploma or GED

Tools

Diagnostic software

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.

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

2 days ago Requisition ID: 6445

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.