Since 1969 to 1996 served for Navy in verious positions in the test and scientific authorities. Captain of the 1-st Rank (retired), Doctor. Engaged in development and trials of navigation equipment of navigation satellite systems Parus, Tsikada, GLONASS and satellite system of search and rescue of КОСПАС-SARSAT. In 1986 — Chairman of governmental commission on trials of GNSS GLONASS navigation equipment for submarines. In different years from 1991 to 2006 presented USSR, Russian Federation, “Internavigation” STC and JSC “TRANSAS” in the international organizations IEC, IALA, RTCM. Since 1999 to 2010 JSC “TRANSAS” — Chief designer of AIS class A (T100, T102, T104), AIS class B (T600, T600-01 SO), AIS base stations (T210, T214-is delivered and on the foreign market), AIS receiver T300 (was delivered and on the foreign market), a AIS pilot equipment (T603). In 2001 in Hamburg on the vessel “GAUSS” passed the international trials of the very first prototypes of AIS among numbers of the foreign companies. Trials were carried out to check requirements of the developed draft of the international IEC 61993-2 standard (AIS class A) on radio compatibility of products of different manufacturers, the organization of information exchange between vessels with use of TDMA access. Among these samples there was TRANSAS AIS class A T100 (at the same time the first-ever AIS base station TRANSAS T210 was presented which provided check of VTC by means of AIS). Participant of a number of the international exhibitions NEVA, Sea salon. Since 2011 — Adviser of General Director Deputy, JSC “TRANSAS” . Since 2015 — Director General Adviser, JSC “Kronshtadt Technologies”.