GFL Environmental seeks a 1st/2nd-Shift Diesel Mechanic to keep our waste and recycling fleet safe, reliable, and on the road. You’ll inspect, diagnose, and repair diesel trucks and related equipment, performing preventive maintenance, troubleshooting hydraulic, electrical, and brake systems, and completing accurate service records. Working in a safety-first, team-focused shop, you’ll support essential environmental services for local communities while gaining training and advancement opportunities in a stable, growing company. Inspect, diagnose, and repair diesel trucks and related equipment to ensure safe, reliable operation Perform scheduled preventive maintenance on engines, hydraulic, electrical, and brake systems Use diagnostic tools, manuals, and schematics to troubleshoot mechanical and electronic issues Complete accurate work orders, parts usage, and maintenance records in the shop system Follow all safety, environmental, and company policies, including PPE and lockout/tagout procedures Collaborate with drivers and operations staff to prioritize repairs and minimize downtime Conduct road tests and post-repair inspections to verify quality of work Support a clean, organized, and compliant shop environment across 1st and 2nd shifts Diesel engine diagnostics and repair Hydraulic systems maintenance Pneumatic and air brake systems Electrical systems troubleshooting Preventive maintenance inspections (PMI) Use of diagnostic software and scan tools Welding and fabrication basics Reading technical manuals and schematics Safety and lockout/tagout procedures Maintenance documentation and work order systems Medical Insurance Dental Insurance Vision Insurance Life Insurance 401k ASE Medium/Heavy Truck certifications preferred Diesel mechanic or heavy truck technician certificate preferred Valid CDL with air brake endorsement preferred OSHA or safety training certifications a plus