Landfill Gas System Technician. Seneca Landfill, Inc. is seeking a Landfill Gas System Technician who is responsible for the safe operation and maintenance of the gas processing plant and landfill gas extraction systems, leachate collections systems and other related systems at Seneca Landfill. The position is accountable for the ongoing monitoring of such systems, ensuring that all work adheres to safety regulations, as well as federal and state...