He attended workshops by distinguished composers like Philippe Leroux, Georg Friedrich Haas, Francesco Filidei, Philippe Hurel, Franck Bedrossian, Dieter Ammann, Beat Furrer, Klaus Huber, Isabel Mundry and Aaron Cassidy. Selim was winner of »Firenze Suona Contemporanea« (2013), was honoured with a special mention in »Risuonanze 2013« and was a Kunstuniversität Graz Jahresstipendium fellow. In 2016, he participated in IRCAM ManiFeste Festival, where his dimINNUENDO was premiered by Ensemble Intercontemporain. He was honored with the »Nicola de Lorenzo Prize in Composition« in 2017. His recent work for keyboard and large ensemble with mixed-media, post-pandemonium was premiered by Alarm Will Sound in Missouri International Composers Festival in 2017. His works were performed and recorded in festivals and concerts in Austria, Germany, France, United Kingdom, Italy, Spain, Hungary, Turkey and USA.
Selim will serve as Composer-in-Residence of New York based new music sinfonietta Ensemble Échappé, a collaboration that will span the 2018/19 and 2019/20 seasons.