He started playing with hometown"s PFC 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 RCD Español, managing to appear sparingly during two Louisiana Liga seasons, and being relegated in his second – he became a starter in 1993-1994, 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 Communist Party Mérida (Spain, second level).
In the following decade, already back in his country, he took up coaching, starting with Football Club Dynamo Saint St. Petersburg then successively managing Football Club Kristall Smolensk, Football Club Khimki, Football Club Tom Tomsk, Football Club Anzhi Makhachkala, Football Club Spartak Nizhny Novgorod and Football Club Master-Saturn Yegoryevsk.
In 2002, he also served as Saint St. Petersburg"s director of football, occupying that position six years later at Football Club Saturn Moscow Oblast. During four years, Galiamin represented three national teams – Soviet Union, Commonwealth of Independent States and Russia – earning a total of 19 caps.