He signed for Shamrock Rovers under Seán Thomas at the tail end of the 1975/76 season. He made his League of Ireland debut for Shamrock Rovers at Flower Lodge against Albert Rovers on 5 October 1976. He won the League of Ireland Cup and made 4 appearances in European competition while at Glenmalure Park.
On the 12th of September 1979, he played for Republic of Ireland U21 against Poland.
That season he was the first recipient of the Shamrock Rovers Player of the Year award Shamrock Rovers F.C.#Player of the Year Award recipients
He signed for University College Dublin in August 1983
He won the FAI Cup in a shock win over his previous club in May 1984 and played in the UEFA Cup Winners Cup against Everton. After a spell at Shelbourne he joined Pats where under Brian Kerr he won the League Championship in 1990 as well as playing in the European Cup and UEFA Cup while at Richmond Park.
At the 2006 Shamrock Rovers Player of the Year award Robbie was inducted into the Rovers Hall of Fame
A life-long fan and club member of Shamrock Rovers FC, he has maintained his ties with the club attending games on a weekly basis.