GFL Environmental is seeking a Day Shift Diesel Mechanic to maintain and repair our solid waste and recycling fleet. In this full-time, on-site role, you will perform diagnostics, preventive maintenance, and repairs on diesel trucks and related equipment to ensure safe, reliable operations. Responsibilities include inspecting engines, hydraulics, and braking systems; completing PM schedules; documenting work in maintenance systems; and following strict safety and environmental procedures. Join a safety-first, team-oriented workplace with training, growth opportunities, and competitive pay and benefits in a stable, essential services industry. Perform diagnostics, repairs, and preventive maintenance on diesel trucks and waste collection equipment Inspect and service engines, hydraulic systems, brakes, and electrical components Complete scheduled PM services and document all work in maintenance systems Troubleshoot mechanical and electrical issues using diagnostic tools and software Follow all safety, environmental, and lockout/tagout procedures in the shop and yard Collaborate with drivers and operations staff to prioritize and resolve equipment issues Maintain a clean, organized work area and proper care of tools and equipment Assist with road calls and emergency repairs as needed during the day shift Diesel engine diagnostics Hydraulic systems repair Air brake systems maintenance Preventive maintenance inspections (PMIs) Use of diagnostic software and scan tools Electrical systems troubleshooting (12V/24V) Welding and basic fabrication Service documentation and work order systems Safety and lockout/tagout procedures Reading technical manuals and wiring diagrams Medical Insurance Dental Insurance Vision Insurance Life Insurance 401k ASE Medium/Heavy Truck certification preferred CDL Class B or higher preferred Diesel technology vocational training EPA refrigerant handling certification a plus OSHA safety training