BURLINGAME SCHOOL DISTRICT CUSTODIAN SUBSTITUTE - On call basis, as needed. Under supervision, to maintain an assigned facility, group of buildings, or office space in a clean, orderly, and secure manner following a predetermined schedule. and to do other related work as required. EXAMPLES OF DUTIES. Sweeps, mops, strips, waxes and seals floors. vacuums rugs and carpets. dust, washes and polishes furniture and woodwork. operates power cleaning eq...