Diesel Truck Mechanic

Job Description

Job Description

Diesel Mechanic – Class A & Class B Vehicles (Overnight Shift)

Mazza Recycling is hiring an experienced Diesel Mechanic / Heavy-Duty Fleet Technician to maintain, diagnose, and repair our Class A and Class B commercial vehicles, diesel trucks, heavy equipment, and recycling facility equipment. This role is ideal for a hands-on mechanic who is confident working on diesel engines, air brake systems, hydraulics, electrical systems, emissions systems, preventive maintenance, and fleet repairs in a fast-paced industrial environment.

This overnight shift position offers stable, year-round work with a growing New Jersey recycling company that values safety, teamwork, reliability, and professional growth. If you are looking for a diesel mechanic job where your skills directly support essential operations, reduce downtime, and keep commercial vehicles and equipment moving, we want to hear from you.

Key Responsibilities

• Inspect, diagnose, troubleshoot, repair, and maintain Class A and Class B diesel vehicles, commercial trucks, roll-off trucks, tractor-trailers, dump trucks, loaders, forklifts, heavy equipment, and MRF plant equipment.
• Perform preventive maintenance services including oil changes, lubrication, filter replacement, brake inspections, tire checks, battery checks, fluid services, DOT-related inspections, and safety repairs.
• Diagnose and repair diesel engines, transmissions, air brakes, suspension systems, steering components, hydraulic systems, pneumatic systems, electrical systems, cooling systems, fuel systems, DEF/emissions systems, and aftertreatment components.
• Use diagnostic software, scan tools, test equipment, technical manuals, schematics, and work orders to accurately identify root causes and complete repairs efficiently.
• Perform welding, fabrication, cutting, and mechanical repairs as needed to keep vehicles, containers, equipment, and facility systems operating safely.
• Complete road calls, equipment inspections, operational testing, and post-repair quality checks as assigned.
• Maintain accurate maintenance records, inspection notes, parts usage, repair documentation, and service history in accordance with company procedures.
• Operate shop and facility equipment safely, including forklifts, loaders, service vehicles, and related tools.
• Follow all safety procedures, lockout/tagout requirements, environmental standards, and company maintenance protocols.
• Communicate equipment issues, repair priorities, safety concerns, and downtime risks to management in a timely and professional manner.

Qualifications

• Must be at least 21 years old and legally eligible to work in the United States.
• Prior experience as a Diesel Mechanic, Heavy-Duty Mechanic, Fleet Mechanic, Truck Mechanic, Trailer Mechanic, Equipment Mechanic, or Maintenance Technician preferred.
• Experience repairing Class A and/or Class B commercial vehicles strongly preferred.
• Knowledge of diesel engines, air brakes, hydraulics, electrical diagnostics, emissions systems, preventive maintenance, and heavy equipment repair.
• Ability to troubleshoot mechanical, electrical, hydraulic, pneumatic, and computer-based diagnostic issues.
• Welding, fabrication, torch cutting, MIG, Stick, or related repair skills preferred.
• CDL Class A or Class B, ASE certifications, DOT inspection experience, EPA 609, or manufacturer training is a plus but not required.
• Forklift, loader, or heavy equipment operating experience preferred.
• Ability to work outdoors and in a shop/industrial environment in varying weather conditions.
• Ability to lift, bend, stand, climb, kneel, and perform physically demanding work safely.
• Willingness to work overnight shift, overtime, weekends, and occasional emergency repairs as business needs require.
• Strong work ethic, reliability, attention to detail, safety mindset, and ability to work independently or as part of a team.

Benefits

• Competitive pay based on experience, skills, certifications, and fleet maintenance background.
• Stable overnight schedule with year-round work in an essential industry.
• Medical, dental, and vision insurance.
• 401(k) with up to 4% company match.
• Paid time off and sick time.
• Annual salary increase opportunities.
• Training, hands-on learning, and professional development opportunities.
• Opportunity to work on a diverse fleet of Class A and Class B vehicles, heavy equipment, and advanced recycling equipment.
• Family-friendly company culture with a team-focused maintenance environment.
• Growth opportunities within Mazza Recycling and its family of companies.

Why Join Mazza Recycling?

At Mazza Recycling, our mechanics are essential to keeping our fleet, equipment, and facility operations running safely and efficiently. We invest in skilled trades professionals who take pride in solving problems, reducing downtime, and supporting a cleaner, more sustainable future. If you want a long-term diesel mechanic career with variety, stability, and meaningful work, this is a strong opportunity to grow with us.

Equal Opportunity Employer

Mazza Recycling and its family of companies celebrate diversity and are committed to providing an inclusive workplace. We do not discriminate based on race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability status, or any other characteristic protected by law.

If you require a reasonable accommodation to participate in the hiring process, please contact our Human Resources Department.