Job Description. Job Description. Holy Cross School-Age Program is currently looking to hire additional. Full-Time and Part-TIme Summer School-Age. Teacher Assistants. We are looking for a motivated, entergetic, and caring individuals to join our teaching team for the summer. Our school-age program serves children Kindergarten - 3rd grade in our Early Childhood setting. We take pride in the highly qualified teachers who make up our program and it...