US Department of Defense - - Responsibilities: Maintains an orderly and clean specified area following general instructions regarding the tasks to be performed.; Sweeps, mops, strips, scrubs, waxes, and polishes floors using heavy industrial powered equipment.; Removes stains from rugs, drapes, walls, floors, and fixtures by use of chemicals and cleaning solutions.; Washes and cleans windows inside and outside of building.; Performs seasonal tasks such as the following: cuts grass, pulls weeds, and trims bushes.