Good crews make a difference! Career opportunities for individuals with experience and those just introduced to the janitorial business. Experienced crews make a difference, work for a local commercial cleaning company. AJ Services is an EOE employer... Even if you are new to the cleaning business, we always love to help to introduce cleaning positions or custodian opportunities to new people who want to learn something new. Subocontractors are a big part of the cleaning business now-a-days, as they play a necessary part in the chain between big cleaning companies and local companies that handle day to day supervision and staff.