POSITION TITLE: TEACHER ASSISTANT - Middle/High SCHOOL and Tonawanda Elementary Positions Available. STARTING DATE. ASAP. SALARY. Per Tonawanda Education Association Contract. APPLICATION PROCEDURE. Submission accepted on-line at. http://www.wnyric.org/application. Or by applying on really with resume. Full-time Teacher Assistant position for the Tonawanda City School District. Must hold current, valid NYS certification as Teacher Assistant or ot...