Oakland Catholic High School - Substitute Teachers Needed Oakland Catholic High School in Pittsburgh, PA is currently seeking qualified individuals to serve as substitute teachers for the upcoming academic year. Substitutes play a vital role in supporting the continuity of instruction and the overall mission of our school community. Interested candidates must have a bachelor’s degree and current Pennsylvania state and Diocese of Pittsburgh clearances, or have all clearances completed prior to starting. Those who are interested in joining our dedicated team of educators in a faith-filled, academically rigorous environment are invited to contact Christy Gilkey at [email protected] for more information.