Since 2015 Zeno Schönmann has worked as a lawyer, initially for a major corporate law firm in Zurich and then in private practice, starting in 2021.

He is registered with the attorneys' registry of the Canton of Zurich and admitted to all Swiss courts. He is member of the Zurich Bar Association ZAV and of the Swiss Bar Association SAV.

Since 2015  Zeno Schönmann has also regularly appeared in academic publications as editor, author or co-author.

While working, he has also successfully completed an Executive MBA in General Management at the University of St. Gallen during 2019 and 2020.

Following his law studies at the Universities of Zurich and Geneva, he began working for the Zurich District Court in 2009 and was admitted to the Zurich Bar in 2012.

He was a law clerk at the Zurich Bankruptcy and Debt Restructuring Court from 2010 to 2012, and then at the Zurich Commercial Court from 2012 to 2015.

He has also been a Substitute Judge at the Dielsdorf District Court since 2014 (previously serving in that capacity at the Zurich District Court in 2013 and 2015). He participates in panels hearing cases there, and also conduct many different types of proceedings as a single judge in the areas of general civil and criminal law, debt collection and bankruptcy law, and employment and tenancy law.

Katja Diethelm completed her bachelor's degree at the University of Fribourg in 2006 and her master's degree at the University of Bern in 2008. In 2012, she was admitted to the bar in the canton of Zurich.

After holding various positions in the Zurich judiciary – including as a law clerk in the 9th Division of the Zurich District Court, which specializes in criminal law, at the Commercial Court of the Canton of Zurich, and as a part-time substitute judge at two Zurich district courts – Katja Diethelm worked as a litigator at a renowned Zurich commercial law firm. She then spent several years as in-house counsel in the legal departments of a Swiss university, a large Swiss retail company, and a Swiss mineral oil company, where she gained an in-depth understanding of the day-to-day legal challenges faced by both public institutions and private companies. 

Katja Diethelm is registered with the attorneys' registry of the Canton of Zurich and is admitted to all Swiss courts. She is a member of the Zurich Bar Association (ZAV), the Swiss Bar Association (SAV), and the Pikett Strafverteidigung association.

Since 2025, Katja Diethelm has been a member of the board of directors of KMU SWISS AG and a member of the Bremgarten district school board.