*In 1953-1959 senior researcher in National Academy of
Aciences of the [[Republic of Armenia]] language institute named after H. Acharyan.*In 1959-1992 head of the contemporary Armenian language department of National Academy of Aciences of the [[Republic of Armenia]].
*In 1967-1970 head of department of the research institute of pedagogical sciences of Armenian Soviet Socialist Republic.
*In 1953–1958 lecturer at the Shirak State University
*In 1970–1971 lecturer at Vanadzor State Pedagogical Institute.
*In 1972–1992 lecturer at Khachatur Abovian Armenian State Pedagogical University.
*Since 1992 was head of
the group at the language institute named after H. Acharyan at [[Armenian National Academy of Sciences]].