Sanitation Job Description. Janitorial are responsible for keeping the warehouse clean and tidy for the Warehouse Agents. This position requires working in a fast-paced environment with time constraints to meet arrival and departure goals. A professional and positive image must be consistently displayed by the employee. “Lead by Example” concept is strongly promoted. Warehouse Agents-Janitorial must report to work on a regular and timely basis and report directly to the supervisor and/or manager on duty.