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Career Opportunities

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.

OSM is now interviewing for the following positions. 

Extended Day and Substitute Teachers

For more information, please click the link above for the Archdiocese HR Website.​

Extended Day and Substitute TeachersStatus: Part-time

OSM is seeking candidates to serve as Extended Day and daily substitutes for students in grades PK-8th grade.  Requirements include a bachelor's degree and completion of all Archdiocese compliance requirements.  Candidates should email

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