Career
His preferred position is that of a winger, mainly playing on the right side, but he also plays as a right midfielder or as a striker. Politehnica Iaşi and Braşov
Marius Onofraş started his career at hometown club Politehnica Iaşi, moving through the youth systems and making his debut in the senior squad in 1998. Wanting to play in the Romanian Liga I, he moved to Football Club Braşov.
Onofraş had a successful spell at Football Club Braşov playing also in the Union of European Football Associations Europa League.
He left the team in 2004. He then rejoined his hometown club Politehnica Iaşi, now playing in Liga I. With his good game he helped maintain the team in the first tier of Romanian football.
Unirea Urziceni
Being spotted by Unirea Urziceni manager Dan Petrescu as a great talent he was bought alongside Politehnica Iaşi teammate Valeriu Bordeanu. He later signed a four and a half year contract with the Urziceni team
Steaua Bucureşti
On 31 August 2010 he signed a contract with Steaua Bucureşti alongside team mates from Unirea Urziceni: Galamaz, Ricardo, Marinescu, Apostol, Bilaşco and next week Brandán.
In June 2011, Onofraş left Steaua. Khazar Lankaran
In the summer of 2011 he joined Azerbaijan team Khazar Lankaran. In August, after only two matches, Onofraş left the team
CSMS Iaşi
In the same month he signed a two-year contract with his hometown club CSMS Iaşi.
On 3 September Onofraş scored a winning goal against Gloria Buzău in extra time, bringing all the points to his team In a game against Dunărea Galaţi the player scored a goal only to help the team earn a draw.
Although there were talks that Onofraş will leave the team in the winter break, the player confirmed that he is committed to bringing the team to the Liga I.
On April 28, 2012, Onofraş scored the last two goals in the 4-2 victory against CS Otopeni. CSMS Iaşi turned the score around from 0-2 to stay in the fight for promotion.