Hajime received B.E. and M.E. from the University of Electro-Communications, Tokyo, Japan in 1993 and 1995, and PhD from the University of Technology, Sydney, Australia in 1999. Hajime has been working for CSIRO at the Radiophysics Laboratory in Marsfield since 1999. He was employed initially as a Research Scientist, and was promoted to a Senior Research Scientist in 2003 and to a Principal Research Scientist in 2010. He was the Group Leader of the Communication Systems Group in Cyber Physical Systems Program under Data61 leading approx 30 researchers from 2014 to 2017. From 2002 to present, he has been a project leader of various internally and externally funded projects delivering outcomes, including the Ngara Rural Broadband Access project ($8.7M for 2.5 years), Ngara at Macquarie University project ($1.5M for 2.5 years), and advanced public safety communication project ($2.0M for 2 years). From 2001 to 2005, he has served as the Chairman of the Subgroup 3K-3 on indoor and short-range propagation under the International Telecommunication Union Radiocommunication Sector (ITU-R), an agency of the United Nations. He is currently the Vice Chairman of Working Party 3K on point-to-area propagation.