Osman Örs, with an M.A. in Islamic Sciences, Education, and Anglistics from George-August University in Göttingen, has served as a theological advisor and Imam at the House of One Foundation in Berlin since 2015. Focused on theological and liturgical aspects in the context of religious diversity, he actively contributes to interfaith dialogue. Since 2020, he collaborates with "Demokratie leben!" to combat antisemitism, racism, and religious extremism, organizing educational workshops with institutions like schools, the Berlin Senate and the Berlin Police. Beyond the House of One, he engages in community roles, being a member of the Berlin Forum of Religions and the Council of Imams of Berlin.

As of 2021, he teaches the course "Introduction to Islam" at Evangelische Hochschule Berlin.