Mr. Zamma has been involved in IT related business for over 25 years.
In NIPPON TELEGRAPH AND TELEPHONE (NTT), he has worked on large scale system development in the Information System Headquarter and brand-new business development in the Multimedia Business Development Division. In 1999, he has transferred to NTT Communications and worked on security and CRM solutions in the Solution Business Department. In May 2002, he joined BearingPoint Japan, responsible for IT strategy of the public sector as a senior manager in the Public Services.
In 2003, he was appointed as an Advisor to CIO, Ministry of Finance. He is in charge of Budgeting Bureau and National Tax Agency. In Apr 2006, he joined Gartner japan, as Vice President in Gartner Consulting. And he named a Special Advisor, IT Policy Office, Cabinet Secretariat (Government Program Management Office) by Prime Minister Koizumi.
In 2012, he started to teach in Graduate School of Tokyo University. He has a course in Public Policy Division. From 2013, this class becomes joint class with Information Science and Technology Division.
In August 2012, he also named an Advisor to Government CIO when Government of Japan named the first government CIO. In April 2015, he has promoted to Executive Advisor to Government CIO and Chief Architect, also promoted to Executive Advisor to CIO and named to Executive Advisor to Chief Security Information Officer in Ministry of Finance. In June 2017, CIO council of Japanese government established technology committee which focus on digital transformation. He appointed to Chairman of Digital Government Technology Committee.
He was elected the 22th Chairman of ICA conference in 2015 and collaborating with international organizations, OECD, EU and World Bank.