[3] In 2010, he conducted il Gusto Barocco in Stuttgart Handel's oratorio The Triumph of Time and Truth in a staged performance in the church hall.
At the Staatstheater Kassel, Halubek took over the musical direction of Scarlatti's Griselda (2012), Vivaldi's L'Olimpiade (2013) Handel's Saul (2013), Christoph Willibald Gluck's Iphigénie en Tauride (2014), Leonardo Vinci's Artaserse (2015), Los Elementos by Antonio de Literes and Antigona by Tommaso Traetta.
At the Innsbruck Festival of Early Music in 2017, he directed Reinhard Keiser's Die edelmütige Octavia with prize-winners of the Cesti Competition.
In June 2017, he guest conducted Tommaso Traetta's Antigona with international artists such as Goshka Macuga and Gareth Pugh at the Staatstheater Kassel as a reference to documenta 14.
In March 2019, Halubek made his guest debut at the Komische Oper Berlin with Handel's opera Poro, re dell'Indie in a production by Harry Kupfer.