As a goalkeeper, Iordache played for FC Politehnica Iași (between 1969 and 1971), Steaua Bucureşti (1972–1984) and FC Braşov (1984–1986) when he also was assistant coach. He won 25 caps for Romania between 1976 and 1984. After the game against England played on 29 April 1981, when he kept the goal safe for the whole 90 minutes of the game, he was named "The hero of the Wembley". He represented his country at the 1984 UEFA European Championship in France.
In 1986 joins again the squad of Steaua Bucureşti as goalkeepers' coach, but leaves the club after four years when is named head coach of U Cluj, only to return to Steaua Bucureşti as assistant coach one year later.