Diesel Mechanic / Heavy Machine mechanic

We are currently seeking an experienced Heavy Equipment & Diesel Truck Mechanic to join our maintenance team in Seaville, NJ. This position is responsible for diagnosing, repairing, and maintaining a wide range of construction equipment, diesel trucks, and support vehicles to keep our fleet operating safely and efficiently.
The ideal candidate is dependable, mechanically skilled, safety-conscious, and capable of working independently in a fast-paced environment.
Key Responsibilities

• Diagnose, troubleshoot, and repair mechanical, hydraulic, electrical, and diesel engine systems.
• Perform preventive maintenance and scheduled service on heavy equipment, diesel trucks, trailers, and small engine equipment.
• Remove, repair, replace, and rebuild major mechanical components as needed.
• Read and interpret service manuals, wiring diagrams, hydraulic schematics, blueprints, and technical documentation.
• Complete DOT annual inspections and ensure vehicles meet all federal and state safety requirements.
• Perform emergency field repairs at customer jobsites or company locations when necessary.
• Inspect equipment for safety, reliability, and proper operation before returning it to service.
• Maintain accurate maintenance records and repair documentation.
• Keep the shop clean, organized, and compliant with company safety standards.
• Communicate effectively with supervisors, drivers, and other team members regarding repair status and equipment needs.
• Deliver quality workmanship while maintaining the professionalism and customer service Action Supply is known for.
• Follow all OSHA regulations, company safety policies, and safe work practices.

• Minimum of two (2) years of experience repairing heavy equipment, diesel trucks, or commercial vehicles.
• Strong knowledge of diesel engines, hydraulic systems, electrical systems, brakes, drivetrains, and small engine repair.
• Ability to diagnose equipment failures and perform repairs efficiently with minimal supervision.
• Experience performing preventive maintenance and DOT inspections.
• High school diploma or GED required; vocational or technical training in diesel technology or heavy equipment repair is preferred.
• Basic computer skills for maintenance software and repair documentation.
• Strong organizational skills and attention to detail.
• Valid driver's license required; CDL or the ability to obtain one is a plus.
• Ability to successfully pass a pre-employment drug screening and background check.

• Frequently lift, carry, push, or pull up to 75 pounds, with occasional heavier lifting using appropriate equipment.
• Stand, walk, bend, kneel, crawl, and climb throughout the workday.
• Work safely around heavy machinery, moving equipment, power tools, and hydraulic systems.
• Perform repairs indoors and outdoors in varying weather conditions.
• Ability to respond to occasional roadside or field service calls.

• Competitive hourly pay based on experience
• Performance-based bonuses
• 401(k) with company match (waiting period applies)
• Medical, dental, and vision insurance (waiting period applies)
• Paid holidays
• Paid vacation and paid time off
• Employee discount program
• Annual company picnic and employee events
• Stable, year-round employment
• Opportunities for training and career advancement