Field Service Diesel Mechanic

Custom Truck One Source; Decatur (GA); On-site; USD 34,000 - 48,000; 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 – Atlanta is seeking a Field Service Technician / Mechanic with a background in truck-mounted hydraulics and electrical wiring to service CTOS equipment across the region. You will perform inspections, preventive maintenance, and on-site repairs, often at customer sites, with some shop support.

You will troubleshoot and repair bucket trucks, digger derricks, and truck-mounted cranes, using diagnostic software and manuals.

Qualifications

• High school diploma or GED.
• 5+ years of related experience (field or shop tech).
• CDL Class B preferred.
• Must provide your own mechanic tools.
• Proficiency using documentation software and time management.

Responsibilities

• Troubleshoot, repair, and maintain bucket trucks, digger derricks, truck-mounted cranes, hydraulic equipment, and related systems.
• Perform inspections, preventive maintenance, and on-site diagnostics.
• Read and interpret manuals, schematics, and repair orders.

Skills

Independent work

Hydraulics

Electrical systems

Customer interaction

Diagnostics software

Time management

Safety awareness

Education

High school diploma or GED

Tools

QuickServe

DTNA Diagnostics

Diagnostic 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 Decatur, GA, US

Custom Truck One Source – Atlanta is located at 334 Snapfinger Woods Drive, Decatur, GA 30035

(CTOS) is a leading manufacturer of Utility Trucks and Equipment with a rich history spanning 30 years. With 40 locations across the USA, over 2500 employees, and a rental fleet exceeding 10,000 trucks.

Hiring Field Service Technician / Mechanic with a background in truck mounted hydraulics, electrical wiring, diesel equipment.

You will perform inspections, preventive maintenance, and repair of CTOS equipment.

We equip you for success with

• CTOS Equipment: Boom Trucks / Cranes, Bucket / Dump Trucks, Digger Derricks, Utility Trucks & more.
• 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.