Career
Dumitraș started his football career in 2005, playing for Laminorul Roman in Liga World War II After that, he moved to Ceahlăul Piatra Neamţ. Ceahlăul Piatra Neamț
In January 2010, Dumitraş was bought by Ceahlăul Piatra Neamţ. Here became an important player, and in second part of 2011/12 season, Andrei was named the captain of the team
Steaua București
On 22 May 2012, he signed a 5-year contract with Steaua București who paid for his services 350,000 euros.
On 30 August 2012, he scored one goal for Steaua in a 3-0 victory against FK Ekranas, in Union of European Football Associations Europa League 2012-2013 qualifiers. Return to Ceahlăul Piatra Neamț
On 19 December 2012, Dumitraș signed a 5-year deal with his former club, Ceahlăul Piatra Neamț.
Universitatea Craiova
In January 2015, Dumitraș was transferred to Universitatea Craiova. The fee was undisclosed.