Trương Tài is a skilled research engineer with expertise in 4G and 5G network protocol research at Viettel High Technology Industries Corporation since August 2020. Prior experience includes a master's program at NCTU from February 2018 to January 2020, where a strong foundation in network protocol design and familiarity with ETSI, 3GPP, and GSMA standards was established. Previous roles as a firmware engineer at VNPT Technology and a researcher at the Telecommunication Systems Lab enhanced knowledge of LTE architecture and small cell technology. Trương Tài holds a Master's degree in Computer Science from National Chiao Tung University and a Bachelor's degree in Electronics and Telecommunications Engineering from the University of Engineering and Technology, Vietnam National University, Hanoi.