Diesel Mechanic

404 READY MIX INC; Lithonia (GA); On-site; USD 55,000 - 85,000; Full time

Benefits offered by this job

Health insurance

Paid time off

Job summary

404 Ready Mix is seeking a highly skilled Diesel Mechanic Service Technician to diagnose, repair, and maintain heavy-duty diesel-powered equipment and vehicles. Mixer trucks experience is a plus but not required.

You will play a key role in ensuring reliable operation of critical equipment used to move ready-mix concrete. Responsibilities include diagnostics, maintenance, fabrication, electrical troubleshooting, and safe operation during repairs.

Qualifications

• Experience as a diesel technician diagnosing and repairing heavy equipment.
• Ability to read OEM schematics and electrical diagrams.
• Proficient with diesel engines, transmissions, hydraulics and brakes.
• Self-driven with strong safety compliance.
• Experience with heavy lifting and using power tools.

Responsibilities

• Diagnose and repair diesel engines, transmissions, brakes, hydraulics, and air brake systems.
• Perform routine maintenance on trucks and heavy equipment.
• Fabricate parts using welding and fabrication techniques.
• Troubleshoot electrical systems and sensors.
• Operate equipment safely during repairs and maintain detailed service records.
• Assist disassembly/assembly during major repairs or upgrades.

Skills

Troubleshooting

Automotive diagnostics

Read schematics

Heavy lifting

Safety compliance

Tools

Davie4

Tech Tool

Cummins Insite

JPRO

Welding equipment

Soldering irons

Job description

Benefits:

• Health insurance
• Paid time off

About the Role:

404 Ready Mix is seeking a highly skilled and energetic Diesel Mechanic Service Technician to join our team. In this role, you will be responsible for diagnosing, repairing, and maintaining a wide range of heavy-duty diesel-powered equipment and vehicles. Experience working on Mixer trucks - is a plus but not required. These specialized vehicles transport ready-mix concrete from batching plants to job sites while keeping it workable through continuous internal agitation.

Responsibilities:

• Perform comprehensive diagnostics and repairs on diesel engines, transmissions, brakes, hydraulics, suspension systems, and air brake systems using OEM manuals, schematics, and specialized tools.
• Conduct routine maintenance such as oil changes, tire services, alignments, and inspections on trucks, farm machinery, industrial equipment, excavators, cranes, forklifts, and other heavy machinery.
• Fabricate custom parts or modify existing components using welding, soldering, power tools, and fabrication techniques to meet specific operational needs.
• Troubleshoot electrical systems including wiring harnesses and sensors to identify faults and implement effective repairs.
• Operate heavy equipment safely during repairs or testing phases to ensure proper functioning post-maintenance.Maintain detailed service records of all repairs performed, parts used, and inspections completed to ensure compliance with safety standards and OEM specifications.
• Assist with assembly or disassembly of complex machinery components during major repairs or upgrades.

Requirements:

• Preferred knowledge with truck software: Davie4, Tech Tool, Cummins Insite, Jpro
• Troubleshooting
• Aftertrearment DEF wiring
• Preferred working experience with: Mack, Enging MP7, Freightliner, Engine DD13, Peterbuilt, Paccar
• Proven dealership or heavy equipment service technician experience with strong mechanical knowledge across diesel engines, transmissions, hydraulics, HVAC systems, and suspension components.
• Expertise in automotive diagnostics combined with the ability to read schematics accurately for troubleshooting complex electrical issues.
• Skilled in the use of hand tools, power tools, welding equipment, soldering irons, and other maintenance tools for precise repairs.
• Experience working with OEM parts and understanding manufacturer specifications for vehicle maintenance and repair.
• Ability to perform heavy lifting safely while maintaining attention to detail during tire service or component replacement tasks.