Substitute Custodian. Qualifications. High school diploma or GED, 2 years of custodial experience preferred not required, ability to follow oral and written instructions, to work effectively with others, to work in an environment containing cleaning materials, dust and noise, ability to lift a maximum of 60 pounds with assistance. As Needed Employment. Fill in as needed. Primary shift : 11 : 00 a.m. 3 : 00 p.m. Evening shifts may become available...