He started playing with hometown's CSKA Moscow, being an automatic first-choice from his second season onwards and helping the team to the double in his final year, 1991.
Aged 28, Galiamin moved abroad, signing with Spanish club Espanyol,[1] managing to appear sparingly during two La Liga seasons and being relegated in his second – he became a starter in 1993–94, helping the Catalans immediately return to the top level.
In the 1995 summer, due to constant injuries, Galiamin retired from the game at 32, after one season with Mérida (Spain, second level).
In the following decade, already back in his country, he took up coaching, starting with Dynamo St. Petersburg then successively managing Kristall Smolensk, Khimki, Tom Tomsk, Anzhi Makhachkala, Spartak Nizhny Novgorod and UOR Master-Saturn Yegoryevsk; in 2002, he served as Saint Petersburg's director of football, occupying that position six years later at FC Saturn Moscow Oblast.
During four years, Galiamin represented three national teams – Soviet Union, CIS and Russia – earning a total of 19 caps.