Pachatouridis was born on September 4, 1967 in Drama, Macedonia, Greece. He started his career at Doxa Drama playing for the black eagles between 1983 and 1987. In 1988, he was acquired by Olympiakos. He played for the reds between the years 1988 and 1996, winning the championship in 1987 and the Cup in 1990 and 1992.
Over all, he played in 434 Alpha Ethniki matches scoring 21 goals.