His career of a drum'n'bass DJ began in the spring 2007 in organisation called Cernobily svet. The main object of this crew was supporting the alternative art and offering the full-value background to young alternative artists with a potential. In the end of 2007, the mutual ideas of making music within the group of friends resulted into establishment of Drumsession Crew, when he figures as one of the founders. Despite the difficult beginnings Drumsession was getting its sharper shapes, the membership base was growing and it formed into the group op five DJ's, performing as DJ Zatip, DJ Rapazz, DJ Horv, DJ Eywy and Washek 723. Soon, their cooperation brought its results. On 12th June 2008 crew presented their first event title after the crew itself – Drumsession. It is the first time for Washek723 to act as a promoter and his cooperation with Marley Club and VJ Psychocircus has started since then. In its urban episodes, Drumsession has been bringing the high quality production of drum'n'bass and other electronica genres presented by both regional and national artists, and as the time went by, the top world producers and artists has been accepting the invitations to perform in this club event.

In 2008, Washek came up with the project aiming beyond the bounds of dance scene. He appealed to the owners of several underground caffés and bars within Ostrava with the concept of a chillout/listening event focused on liquidfunk, dubstep and mikrofunk. He suceeded to implement his concept on the premises of Café de la Ostrava within its Wednesday's chillout/listening evenings. He gained one Wednesday a month for his intentions and that is where the contemporary Coffee 723 originates.

He also used to operate under the label of Cockroach sound system which he supports henceforward.

In the beginning of 2011, he established the project named Doubledrop with his Russian mate Dj Steelex. It is focused primarily on dark and deep areas of drum'n'bass, breakz and dubstep. Their performance includes both playing on 2 mixes and 4 decks (Doubledrop 4 deck show) and their personal concepts of the DJ set and visions of the music.