Old St. Mary's School is a National Blue Ribbon PK-8 Catholic School located in the vibrant South Loop of Chicago. We are seeking motivated, collaborative individuals to join the OSM Team. As positions become available, they will be posted here. Instructional positions will also be posted on the Archdiocese HR website. OSM does not discriminate against qualified applicants on the basis of race, color, gender, age, creed, national or ethnic origin, sexual identity, religion or disability.