Mocsai worked as the head coach of MKB Veszprém KC since his appointment in 2007,[1] and beside his club team duties, he also served as the technical director of the Hungarian men's national team from February 2010,[2] before taking over the head coach position from István Csoknyai.

In the summer of 2012 Mocsai resigned from the coaching position of Veszprém to fully concentrate on his work by the national team.

[3] Two years later he resigned from the national team as well, to make himself clear for the rector position of the University of Physical Education [eo; hu] in Budapest.

[5] Mocsai also has been honoured many times, from which the most valuable is probably the Life Achievement Award, which he received on the ten years jubilee of the European Handball Federation in 2002.

Mocsai was given the Head Coach of the Century (Jahrhunderttrainer) title for his hard to work with that he built up professional handball in Lemgo.