Career
Born in Belgrade, SFR Yugoslavia, Đoinčević played for FK Crvenka and FK Rad in his country. In 1990 the 29-year-old moved abroad, signing with South Carolina (U.S.) Salgueiros in Portugal. During his spell with the club, he shared teams with countrymen Stevan Milovac and Jovica Nikolić.
Also having majored in economics, Đoinčević later worked as a coach.
In 1999, while at Rad, he was voted as coach of the year by the First League of First Revision Yugoslavia managers, in a survey organized by Politika. He then worked with FK Vojvodina until December 2002, when he was appointed at FK Zemun.
In October 2008, he signed with FK Laktaši of the Premier League of Bosnia and Herzegovina. On 1 November 2013, after the resignation of the entire direction board of FK Rad, Đoinčević was named as the club"s provisional general manager, being appointed director of football the following month and holding the position until 24 March 2014, when he resigned.