Earthwise Environmental Solutions LLC seeks a Heavy-Duty Diesel Mechanic to maintain and repair our environmentally focused service fleet. In this hands-on, on-site role, you'll inspect, diagnose, and repair heavy-duty diesel trucks and related equipment, ensuring safe, reliable operation for daily service routes. Responsibilities include preventive maintenance, engine and drivetrain repair, brake and hydraulic work, emissions system service, and accurate recordkeeping. You'll support a mission-driven team dedicated to safe, sustainable pest control and environmental services while building advanced technical skills and certifications. Responsibilities Inspect, diagnose, and repair heavy-duty diesel trucks and service vehicles Perform preventive maintenance, fluid changes, and safety checks on diesel equipment Troubleshoot engine, drivetrain, brake, and hydraulic issues using diagnostic tools Maintain accurate repair records, parts usage, and service documentation Ensure compliance with safety, environmental, and regulatory standards Collaborate with field technicians to keep fleet ready for daily service routes Order, track, and manage parts and consumables as needed Participate in ongoing training on new diesel, emissions, and eco-friendly technologies Required Skills Heavy-duty diesel engine diagnosis and repair Medium/heavy truck brake and suspension service Electronic diagnostic tools and software Hydraulic and pneumatic systems troubleshooting Preventive maintenance scheduling and execution Reading technical manuals and schematics Welding and basic fabrication Emissions and aftertreatment system service Fleet maintenance recordkeeping Safety and environmental compliance