Career
He played for Bohemians, scoring on his debut on 13 September 1981. In April 1983 he played for the League of Ireland XI U21s against their Italian League counterparts who included Roberto Mancini and Gianluca Vialli in their team In his first season at Milltown he was the club"s top goalscorer with 11 goals.
He made six appearances in European competition for the Hoops and played for the League of Ireland XI in 5 Olympics qualifiers.
In his two seasons he scored 29 goals in 92 appearances. In August 1996, he had his second spell at Bohemians before moving to Dundalk and then returning to Shelbourne and helping them to the double of the league championship and FAI Cup in 2000.
Since his retirement, Doolin has moved into management and first took the reins at University College Dublin, but left to take over at Drogheda with the Students 11 points adrift at the bottom of the table en route to a first relegation in 15 years. At Drogheda United, he led them to a first ever FAI Cup success (2005), as well as successive Setanta Sports Cup victories in 2006 and 2007, defeating Cork City (twice) and Linfield respectively.
He also led them to a first ever League title in 2007.
Having parted ways with Drogheda due to the club"s precarious financial situation, Doolin joined Cork City as manager on 13 January 2009 on a two-year, full-time contract. Despite the team finishing 3rd in the 2009 League of Ireland Premier Division, Doolin resigned in November of that year, following a series of off-field financial problems at the club In September 2010, Doolin was named as manager of the Republic of Ireland under-19 side.
Player Manager.