Sezin holds degrees from Boğaziçi University‘s Translation and Interpreting Studies (undergraduate degree) and Bilgi University’s Cultural Studies (master’s degree) departments. She has been working as an interpreter since 2003. She is a member of AIIC and TKTD and is accredited to EU institutions. She taught interpretation courses at Yeditepe University’s Department of Translation and Interpreting Studies in 2010-2011. Her working languages are Turkish (A) and English (B). She is a partner at Enterkon. Sezin is a one of the migratory birds of Enterkon and lives in Belgium. She is an environmental and animal rights activist.