He has received his PhD from University College London in 2011. Costin has driven the development and standardization of Multipath TCP, a protocol now implemented by Apple in their IOS7 mobile OS. The quality and the impact of the MPTCP research has been outlined by award publications in the top networking conferences (see below). More recently, Costin has been working in developing an Internet architecture for middleboxes (the CHANGE FP7 project) and in this context worked on applying static analysis techniques to networking. Finally, he has been the UPB Principal Investigator for multiple research projects including CHANGE FP7, Trilogy2 FP7, SSICLOPS H2020 and MobiL4 (Romanian Government funding).