Doctor of Philosophy in Tunnels, Technology University Civil Engineering, Bucharest, Romania, 1996.
Design engineer Railways Design Institute, ISPCF, Bucharest, 1969—1991. Lecturer Technology University Civil Engineering, 1991—2002, professor, since 2002. Member British Tunnelling Society, London, 1993—1998.
Consultant Transurb Consult Sa - Tuc Rail Sa, Bucharest, 2000—2004. Advisory board Romanian National Road Administration, Bucharest, since 2008.
Member of Association Francaise des Travauxen Souterraine, International Tunnelling Association.
Son of Nicolae - Dumitru and Elena - Frasina Iftimie. Married Ecaterina Serbanescu Iftimie, August 30, 1970. 1 child Alexandru.