Giordano was part of the Colts' Super Bowl XLI championship team that defeated the Chicago Bears.

He was also a member of the Green Bay Packers, Atlanta Falcons, New Orleans Saints, Oakland Raiders, and St. Louis Rams.

He broke Buchanan records for longest punt return for a touchdown, most blocked kicks and most interceptions in a game.

He won All-State honors as a freshman, was a two-time All-Conference pick, and was the Defensive MVP in the Northern California Championship game.

[4] In the season-opening 41–10 victory over the New Orleans Saints, Giordano intercepted Drew Brees and returned the pick 83 yards in the Colts' final touchdown play of the game.

[11] Giordano signed with the Atlanta Falcons on March 16, 2010, and participated in training camp with the team before being cut on August 31.

[13] The Raiders signed Giordano on August 15, 2011, after Hiram Eugene suffered a serious hip injury in the pre-season opener.

[15] In 2015, Giordano joined his high school alma mater's coaching staff as defensive coordinator.

His great-grandfather is Italian born Ralph Giordano, better known as Young Corbett III, a world welterweight and middleweight boxing champion.

[20] After retiring from the NFL, Giordano accepted a position as a physical education teacher at Buchanan High School.