As a solid waste engineer, your responsibilities are to support the environmental work of a landfill. Your duties include creating a design for a solid waste treatment facility, improving how recycling programs function, arranging for the proper disposal of trash and garbage containers, and creating sanitation plans to ensure workers are not sickened by the content of landfills. To accomplish these tasks, you use software like AutoCAD, collect environmental samples, apply for permits from any relevant agency, and create reports detailing the goals of each project. In some areas, you must work with large amounts of hazardous waste.