Travel Diesel Mechanic — Field Diagnostics Pro

DeAngelo Contracting Services, LLC; Guthrie (OK); On-site; USD 44,000 - 48,000; Full time

Benefits offered by this job

Medical, dental, vision

401(k) with company match

Generous paid time off

Employee referral bonus

Hotel accommodations and per‑diem

Job summary

We are seeking a highly skilled Shop/Traveling Diesel Mechanic for DCS, based in Oklahoma City, who will diagnose and repair medium and heavy‑duty diesel trucks and related equipment. The role involves extensive travel across OK, TX, LA, KS and CO, with a service truck provided.

Candidates must have 3+ years in diesel repair, strong diagnostic skills, and the ability to work independently in the field. ASE credentials are a plus; DOT physical and a valid license are required.

Qualifications

• 3+ years of experience as a diesel mechanic, preferably with heavy‑duty truck repair.
• Diagnostic and troubleshooting across diesel, hydraulic, electrical, and emissions systems.
• Able to work independently in remote environments with minimal supervision.
• Fabrication and welding experience required.
• Valid driver’s license and ability to pass a DOT physical.
• Willingness to travel frequently across multiple states; hotel accommodations and per‑diem provided.
• ASE certifications are preferred but not required.

Responsibilities

• Travel between job sites to inspect, diagnose, and repair medium and heavy‑duty diesel trucks, skid steers, and related equipment.
• Perform advanced troubleshooting and repair of: Diesel engines, Electrical systems, Hydraulic systems, Emissions systems, Transmissions, A/C systems, Hi‑Rail gear systems, Spray systems.
• Utilize scan tools, diagnostic software, multimeters, pressure gauges, and other testing equipment to identify failures.
• Perform routine maintenance, emergency repairs, and preventative services.
• Demonstrate strong knowledge of diesel emissions systems and electrical diagnostics.
• Complete repairs accurately on the first attempt through root‑cause analysis.
• Perform fabrication, welding, and cutting as required.
• Maintain service truck organization, tool inventory, and parts accountability.
• Maintain accurate service documentation and communicate repair updates with management.
• Ensure compliance with company safety standards and DOT regulations.

Skills

Diagnostics

Troubleshooting

Diesel engines

Electrical systems

Emissions systems

Fabrication/welding

DOT compliance

Education

ASE certification preferred

Tools

Scan tools

Diagnostic software

Multimeters

Pressure gauges

Job description

We are seeking a highly skilled Shop/Traveling Diesel Mechanic for DCS, based in Oklahoma City, who will diagnose and repair medium and heavy‑duty diesel trucks and related equipment. The role involves extensive travel across OK, TX, LA, KS and CO, with a service truck provided.

Candidates must have 3+ years in diesel repair, strong diagnostic skills, and the ability to work independently in the field. ASE credentials are a plus; DOT physical and a valid license are required.