Eranosyan played for Lokomotiv Plovdiv, Vitória de Setúbal, Leixões and Boavista.
Beginning in 1978, he played for Lokomotiv Plovdiv (1977–1988, 1989, 1993–1994) as one of the club's most acclaimed attackers, featuring in 158 matches and scoring 62 goals in the A PFG, winning the Cup of the Soviet Army in 1983 and being the championship's top goalscorer in 1984.
[1] Later, he also played in Greece and Portugal, for Apollon Kalamarias (1988–1989), Vitória (1989–1990), Leixões S.C. (1990–1991, 1992–1993 and 1996–1997) and Boavista F.C.
[2] Eranosyan began his managing career at Leixões, which he coached between 1997 and 1999.
Then, in December 2008 he changed to Enosis Neon Paralimni continuing his adventure in Cyprus.