Rolling-Stock Maintenance Supervisor

About Us:

At Liberty Tire Recycling, we're building a sustainable future - one tire at a time. As North America's leading tire recycler, we offer a unique opportunity to make a real impact on the environment. Join our team of nearly 4,000 dedicated employees across 70+ sites and help us transform billions of pounds of waste tires into valuable resources. We're committed to innovation, a circular economy, and providing a rewarding workplace where you can grow and thrive.

The Rolling-Stock Maintenance Supervisor is a working supervisor responsible for leading and working alongside the team, maintaining Liberty Tire Recycling’s fleet of semi-trucks, trailers, and other rolling-stock assets. This role oversees all maintenance and repair activities related to DOT-regulated vehicles and trailers, ensuring compliance, safety, and equipment uptime. The ideal candidate brings strong diagnostic skills, experience with diesel engines and trailer systems, and the ability to effectively lead a team in a fast-paced, fleet-based environment.

• Serve as a working supervisor by actively participating in daily maintenance and repair tasks alongside the team.
• Oversee all maintenance activities related to semi-trucks, trailers, yard trucks, and other fleet equipment.
• Diagnose and repair mechanical, electrical, brake, suspension, and HVAC systems on tractors and trailers.
• Oversee maintenance of forklifts, skid steers, and other equipment.
• Ensure compliance with DOT regulations, including scheduling and completing required inspections and documentation.
• Develop and oversee preventative maintenance schedules to reduce breakdowns and extend asset life.
• Supervise and train fleet mechanics, ensuring adherence to safety and maintenance best practices.
• Prioritize and manage repairs using a work order or fleet management system.
• Maintain accurate maintenance logs, inspection reports, and compliance documentation.
• Oversee parts inventory and coordinate external vendor and warranty repairs as needed.
• Support and drive continuous improvement in fleet reliability, safety, and maintenance processes.

• Strong knowledge of diesel engine repair, trailer systems, and DOT compliance requirements.
• Hands‑on experience diagnosing and repairing commercial fleet equipment.
• Ability to read and interpret technical manuals, schematics, and diagnostic codes.
• Effective leadership and team‑building skills.
• Strong organizational and time‑management abilities.
• Experience with fleet management or maintenance tracking systems.
• Comfortable working in a hands‑on, outdoor and shop‑based fleet environment.

• High school diploma or GED required; technical certification or diesel mechanic training preferred.
• Minimum 5 years of maintenance management experience with commercial truck and trailer fleets.
• Experience in transportation, waste/recycling, or logistics industries preferred.

Liberty Tire Recycling is an equal‑opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, sex, national origin, age, disability, protected veteran status, relationship or association with a protected veteran (spouses or other family members), genetic information, or any other characteristic protected by applicable law.