Diesel Mechanic - Fleet Trucks

Wynen's; Whitefish Bay (WI); On-site; USD 52,000 - 72,000; Full time

Job summary

Wynen's is seeking a Class A Fleet Mechanic to keep our waste and recycling fleet equipment safe, reliable, and road-ready. You will diagnose, repair, and perform preventive maintenance on Class A trucks and related equipment.

You'll work on diesel engines, hydraulics, braking and electrical systems, perform DOT inspections, and maintain accurate service records. Collaboration with operations and a safety-first culture are essential in our fast-paced environment.

Qualifications

• Experience diagnosing and repairing heavy‑duty diesel systems.
• Strong diagnostic and repair skills with attention to safety.
• Ability to document maintenance and repair records accurately.

Responsibilities

• Diagnose, repair, and perform preventive maintenance on Class A trucks and related equipment.
• Work on diesel engines, hydraulics, braking systems, electrical systems, and other fleet components.
• Perform DOT inspections and help ensure compliance and safe operation.
• Maintain accurate service records and document maintenance/repair work.
• Collaborate with operations teams and support a safety-first culture.
• Adhere to shop and safety procedures in a fast-paced, essential services environment.

Skills

Heavy-duty diesel

Electrical systems

Hydraulics

Diagnostics

Documentation

Safety awareness

Job description

Class A Fleet Mechanic responsible for keeping waste and recycling fleet equipment safe, reliable, and road-ready.

Key Duties Include

• Diagnose, repair, and perform preventive maintenance on Class A trucks and related equipment.
• Work on diesel engines, hydraulics, braking systems, electrical systems, and other fleet components.
• Perform DOT inspections and help ensure compliance and safe operation.
• Maintain accurate service records and document maintenance/repair work.
• Collaborate with operations teams and support a safety-first culture.
• Adhere to shop and safety procedures in a fast-paced, essential services environment.

Qualifications/skills:

Proficiency in heavy-duty diesel and electrical/hydraulic/brake systems; strong diagnostic and repair skills; attention to detail and commitment to safety; ability to maintain organized service documentation.