Diesel Mechanic (Shop & Field)

Torrey Holistics; Decatur (GA); On-site; USD 48,000 - 72,000; Full time

Benefits offered by this job

Paid vacation

Sick leave

401k match

Health care

Dental

Vision

Uniforms

Boot allowance

Ongoing training

Job summary

Custom Truck One Source (CTOS) is seeking a skilled Heavy Truck Diesel Mechanic to join our service team. You will perform full-lifecycle maintenance, troubleshooting, and repairs on a diverse fleet of commercial trucks and heavy equipment, from bumper to bumper.

The ideal candidate has a strong mechanical aptitude and deep knowledge of complex vehicle systems, with experience diagnosing using advanced software.

Qualifications

• Valid Driver’s License; CDL a plus.
• Experience as a Diesel Mechanic on Class 6–8 heavy trucks.
• Strong mechanical aptitude and commitment to safety and compliance.

Responsibilities

• Diagnostics & Troubleshooting using advanced software and tools.
• Chassis & Powertrain repair, steering, suspension, brakes.
• Emissions system service, focusing on EGR and related components.
• PTO & hydraulics installation and repair.
• Electrical system diagnostics including 12V/24V circuits and ECUs.

Skills

CDL

Diesel Mechanic

Diagnostics

Safety & Compliance

Education

Vocational/Technical training

Tools

Diagnostic software

Schematics reading

Job description

Custom Truck One Source (CTOS) is a 30+ year industry leader with 40+ locations, 2,600 employees, and a 10,000+ unit fleet serving utility, telecom, rail, and construction markets.******Job Description**We are seeking a skilled and reliable Heavy Truck Diesel Mechanic to join our service team. In this role, you will perform full-lifecycle maintenance, troubleshooting, and repairs on a diverse fleet of commercial trucks and heavy equipment.The ideal candidate possesses a strong mechanical aptitude and deep technical knowledge of complex vehicle systems, from bumper to bumper.******Key Responsibilities****Diagnostics & Troubleshooting:** Utilize advanced diagnostic software and tools to accurately identify mechanical, hydraulic, and electronic faults.**Chassis & Powertrain Repair:** Inspect, repair, and rebuild truck chassis components, steering, suspension, and braking systems.**Emissions Systems:** Service and repair critical emissions components, with a strong focus on EGR (Exhaust Gas Recirculation) systems, coolers, and valves.**PTO & Hydraulics:** Troubleshoot, install, and repair Power Take-Off (PTO) gearboxes and integrated hydraulic systems (pumps, cylinders, valves, and winches).**Electrical Systems:** Read schematics to diagnose and repair complex 12V/24V electrical circuits, wiring harnesses, starting/charging systems, and electronic control modules.******Qualifications & Skills**Valid Driver’s Licenses (CDL a plus)Proven experience as a Diesel Mechanic working on Class 6,7 or 8 heavy trucks.High mechanical aptitude and a strong commitment to shop safety and compliance.Vocational/Technical school graduates and military veterans with specialized mechanical training are highly encouraged to apply.CTOS offers competitive pay based on skills and experience, paid vacation, sick, and holidays, 401k match, healthcare, dental, vison, prescription insurance, uniforms, boot allowance, ongoing training and more.**Equal Opportunity Employer**You should be proficient in:Diesel Engine SystemsLight Vehicle Diesel EnginesGround Support Equipment (GSE) MaintenanceDiesel & Heavy Equipment SystemsHydraulic Systems & ComponentsElectrical Systems & Diagnostics (Heavy Equipment)Equipment Diagnostics & TroubleshootingMachines & technologies you'll use:Diesel EngineDiesel VehiclesBox TrucksCraneBoom TruckDigger DerrickAerial DevicesBoom CraneRefuse TruckHi-Rail TruckPower Take-Off (PTO)After Treatment Systems (DPF, DEF)Flatbed Truck / Pickup Truck