He started his manager career at the Divizia C team Telecom Timișoara. In 2004 he became assistant of Gheorghe Mulțescu at FCU Politehnica Timișoara and later on, in autumn 2004, the team's head coach. He continued his career as assistant and afterwards as head coach of Apulum Alba Iulia in Divizia A. After a short stint as manager at FC Bihor in Divizia B in 2005, Artimon was recruited in summer 2006 at Poli as a youth-supervisor. He received his big opportunity when being offered the manager position at the club after Sorin Cîrţu's release on 23 October 2006. While initially viewed only as a temporary solution, a good streak of results meant that he would be given the chance to lead the team for the remainder of the season.
However, on 5 March 2007, Artimon resigned from his position as manager, stating that he did not wish to continue to work for the club if his efforts remain unappreciated. The resignation came just two days after a historic draw against Dinamo Bucharest, when Poli used the second team, in protest against a two-match ban of Artavazd Karamyan. On 26 March 2007 he became the manager of the Divizia B team of CFR Timișoara. In September 2008 he replaced Nikola Ilievski as manager at CSM Râmnicu Vâlcea. On 30 July 2010, Artimon followed Sebi Tudor as manager at Juventus Bucureşti.