Substitute Teacher Service, Inc. (STS) is a customer service-based organization, dedicated to providing clients with a workable, cost-effective solution to their substitute professional and support personnel needs as well as giving exposure to employees in the many districts we service. STS is the foremost locator of substitute teachers, teacher aides, and support personnel in Pennsylvania. STS is hiring teachers and paraprofessionals! Apply in Handshake here. Explore open positions at STS at thesubservice.net.
