Sezin holds degrees in Translation and Interpreting (BA) from Boğaziçi University and Culture Studies (MA) from Bilgi University. She has been working as a conference interpreter since 2003. She is a member of TKTD and AIIC and accredited to work for EU institutions. She worked as an adjunct instructor in interpretation in Yeditepe University in 2010-2011. Her working languages are Turkish (A) and English (B). She is a partner of Enterkon. Sezin is practically Enterkon’s Belgium office. She is an animal rights and environmental activist.