Mariusz Tarasek

Mariusz Tarasek is an accomplished IMS expert and Voice Product Owner at T-Mobile Polska, with extensive experience in developing and maintaining voice services such as VoLTE, VoWiFi, and CS voice. Since joining T-Mobile Polska in April 2020, Mariusz has collaborated with various vendors including ZTE, Huawei, Nokia, Broadsoft, and Ericsson. Previously, Mariusz served as an Expert and Core Development Section Manager at T-Mobile Polska from July 2009 to May 2015, where responsibilities included engineering, optimization, and development of core network elements. Mariusz also played a key role in several projects, such as the implementation of CSFB E2E tests and coordination of Voice HD implementation. Mariusz’s career began at Polska Telefonia Cyfrowa (ERA) as Core Section Manager, and earlier as a specialist at Comarch. Mariusz holds a Master of Science degree in Telecommunications from AGH University of Krakow.