Trailer Maintenance Shop Mechanic

Donaghy Sales, LLC; Fresno, Northern (CA, KY); Hybrid; USD 42,000 - 64,000; Full time

Job summary

Donaghy Sales, LLC is seeking a Trailer Maintenance Shop Mechanic to inspect, diagnose, service, and repair commercial trailers and heavy-duty equipment. Focus is on safety, reliability, and DOT/FHWA compliance.

The role requires 1–5+ years of hands-on experience with heavy trailers or trucks, and proficiency with hand and power tools, welding, and reading schematics. CDL is a plus; requires lifting 50–75 lbs regularly, full-time on-site work.

Qualifications

• Experience: 1 to 5+ years of hands-on mechanical experience on heavy duty trailers or trucks.

Responsibilities

• Preventative maintenance: safety checks, scheduled maintenance, and lubing on brakes, suspension, axles, and landing gear systems.
• Diagnostics & Repair: Troubleshoot and repair electrical wiring, lighting, ABS brakes, air lines, and hydraulic components.
• Structural & Body Work: Repair or replace damaged flooring, rails, aluminum body panels, roofs, and doors using welding/cutting equipment.
• Compliance & Safety: Conduct DOT inspections and document findings and repairs.
• Shop cleanliness: Maintain a safe, clean, organized workspace per OSHA guidelines.

Skills

Hand tools

Power tools

Welding/cutting

Reading schematics

Tools

Jacks

Torches

Welding equipment

Cutting equipment

Job description

Job Description: Trailer Maintenance Shop Mechanic

PositionType: Full-Time

Department: Maintenance Shop

Reports To: Shop Supervisor/Fleet Manager

Position Overview

The Trailer Maintenance Mechanic is responsible for inspecting, diagnosing, servicing, and repairing commercial semi-trailers and heavy-duty transport equipment. The primary focus is to ensure the trailer remains safe, highly reliable, and fully compliant with Department of Transportation (DOT) and Federal Highway Administration (FHWA) regulations.

Core Responsibilities

• PreventativeMaintenance{PM: Perform routine safety checks, scheduled maintenance, and lubing on brakes, suspension, axles, and landing gear systems.
• Diagnostics&Repair: Troubleshoot and repair electrical wiring, lighting systems, ABS brakes, air lines, and hydraulic components.
• Structural&BodyWork: Repair or replace damaged flooring, rails, aluminum body panels, roofs, and doors using welding and fabrication equipment (MIG/Stick).
• Compliance&Safety: Conduct comprehensive DOT inspections and document all findings, parts used, and repair hours accurately within the shop management system.
• Shopleanliness: Maintain a safe, clean, and organized workspace, adhering strictly to OSHA and company safety guidelines.

Key Qualifications & Requirements

• Experience: 1 to 5+ years of hands-on mechanical experience working on heavy duty commercial trailers, medium/heavy trucks, or equivalent vocational training.
• TechnicalSkills: Strong proficiency using hand tools, power tools, jacks, torches, and welding/cutting equipment. Ability to read electrical and air system schematics.
• PhysicalStamina: Ability to lift up to 50-75 lbs regularly, bend, kneel, crawl, and stand for extended periods in a shop environment.
• Tools&License: Possession of a valid driver's license (CDL is a plus).