Diagnostic Specialist - Heavy-Duty Trucks

CRC TRANSPORT LLC•Bear, DE

2d•$20 - $35•Onsite

About The Position

CRC Transport LLC is seeking a Diagnostic Specialist to diagnose and resolve complex technical problems in its heavy-duty truck fleet. The role uses advanced diagnostic software and tools to identify root causes, retrieve fault codes, perform software updates, and program ECMs and other modules. The specialist verifies repairs through pre- and post-repair diagnostics, helps reduce fleet downtime and repair costs, and provides technical troubleshooting support to mechanics and electricians. The position is based at the Bear Terminal in Delaware, in an on-site commercial truck maintenance shop, with occasional field assistance for critical fleet situations. The schedule is Monday through Friday, 8:00 AM–6:00 PM, and Saturday, 8:00 AM–1:00 PM. Overtime may be required for critical repairs and fleet readiness. This is a 1099 independent contractor position.

Requirements

1–2 years of hands-on heavy-duty truck diagnostics experience in a commercial shop or fleet maintenance environment.
Experience with PACCAR, Cummins, or Volvo diagnostic platforms and aftertreatment systems such as DPF, SCR, and NOx.
Knowledge of CAN J1939 networks, ABS systems, and Eaton transmissions.
Ability to read wiring diagrams, interpret fault codes, perform software updates, and program ECMs or other modules.
Experience with Fullbay or similar shop management software.
Strong troubleshooting skills, attention to detail, and reliability.
Ability to work independently and communicate effectively with the team.
English proficiency sufficient to read technical documentation and communicate with the shop team.
Ability to work around heavy vehicles, stand for extended periods, bend, and use diagnostic equipment.
Wear required personal protective equipment.

Nice To Haves

Experience with CAT engine electrical systems.
Experience with automatic transmission installation and programming.
Experience with OEM diagnostic tools such as INSITE, ServiceRanger, DAVIE, JPRO, or Jaltest.

Responsibilities

Diagnose complex heavy-duty truck faults, including engine, transmission, electrical, ABS, and aftertreatment systems.
Use diagnostic software and tools to identify root causes, retrieve fault codes, perform software updates, and program ECMs and other modules.
Perform pre- and post-repair diagnostics to verify repairs and ensure trucks are safe and roadworthy.
Identify effective in-house repair solutions to reduce downtime and costs and avoid unnecessary dealership visits.
Provide technical guidance and troubleshooting support to mechanics and electricians.
Maintain accurate repair records, diagnostic reports, and parts documentation in the shop management system.
Coordinate with the shop team to prioritize repairs and communicate progress, delays, and technical issues.
Follow company safety procedures and applicable DOT requirements.