Master in Engineering, Technology University, Warsaw, 1966. Doctor in Engineering, Technology University, Warsaw, 1974. Master in Applied Science, University Toronto, Ontario, Canada, 1970.
Designer, Minicomputer Branch Institute for Mathematics Machines, Warsaw, 1972-1974; department head, Union of Informatics, ZETO, Warsaw, 1974-1977; director, Computing Center Ministry of Machine Industry, Warsaw, 1977-1981; senior specialist, Institute for Organisation Machine Industry, Warsaw, 1981-1983; computer project manager, Ministry of Finance, Minna, Nigeria, 1983-1986; senior lecturer, U. Auckland, New Zealand, since 1986. Consultant iE3, Auckland, New Zealand, since 1997.
Editor Polish Wave, Radio 810 Am, Auckland, since 1991. Member New Zealand Information Security Forum (chairman), New Zealand Computer Society (board member), Information Resources Management Association (New Zealand representative).
Son of Henryk and Aniela (Löwy) J. Halina Ewa Roszewska-Howan. 1 child, Piotr.