Whilst working for the Hungarian federation, Chernomaz also accepted the position as sporting director at Löwen Frankfurt in 2013. In December 2015, he also took over head coaching duties in Frankfurt after the sacking of Tim Kehler. In the 2016-17 season, he handed coaching duties to Paul Gardner and remained in his job as sporting director. In 2017, the Frankfurt team won the DEL2 title. On December 21, 2017, the Löwen Frankfurt organization announced not to extend Chernomaz' contract which expired in April 2018 and to relieve him of his duties with immediate effect to hand over the job to Franz-David Fritzmeier. At that moment, the Löwen team was sitting in second place in the DEL2 standings. In April 2018, Chernomaz was announced as the head coach of the Nottingham Panthers, replacing the outgoing Corey Neilson. Chernomaz was sacked by the Panthers on 16 January 2019. The Nottingham team was third in the Elite League at the time, but had lost four games in a row. On 5 February 2019, he took over the head coaching position with the Ravensburg Towerstars of the German DEL2 league. Chernomaz guided the Towerstars to their second-ever DEL2 championship title, overcoming his former team Frankfurt in the finals in April 2019. He departed Ravensburg in February 2021.