Age: 29 years, 1 month
Place of Birth: Athlone
Height: 5' 10"
Robbie made his league debut with Athlone Town as a substitute away to Waterford United on 3 Octobber 2008 and became a regular first team player in 2009 when he scored three times in 25 league appearances. He scored another two league goals in 2010, from 12 league outings before signing for UCD in September as part of a scholarship programme.
Robbie was unable to play for UCD's league side during the closing stages of the 2010 season due to scholarship regulations. However he did take his place in the squad for the 2011 season, making 20 league appearances and scoring five goals. Robbie became a mainstay of the side during the 2012 season, playing a part in 31 league games for the club, scoring three goals in the process, as UCD finished ninth in the Premier Division.
Robbie stayed with UCD for the 2013 season, and scored an impressive nine goals in 25 league appearances as UCD once more finished ninth. In 2014 Robbie was made captain of UCD and played in all 33 league game for the club, scoring three goals. However, UCD were relegated at the end of that season after losing a play-off to Galway FC. He re-signed for UCD's 2015 First Division campaign while he continued to study at the College. He went on to play in 18 league games, scoring seven goals, as UCD secured a promotion play-off spot. He also played in all four of UCD's Europa League games. In the play-offs, UCD once more lost out, this time to Finn Harps.
In December 2015, Robbie joined Premier Division champions Dundalk and he made his first league appearance for them on the opening weekend of the season against Bray Wanderers. He made 24 league appearances as Dundalk claimed the league title, their third in a row, and scored twice. He also played in eleven of the club's European games, scoring three times in European competition. In 2017, Robbie scored 12 times in 37 appearances for the club. Robbie signed a new one year contract with Dundalk in December 2017. After 117 appearances for the club, Robbie signed a new one year deal with Dundalk ahead of the 2019 season.
Robbie moved to Pats at the end of 2019 after four years at Dundalk winning three league titles. In January 2021, Robbie re-signed with Pats for another season.