Jakub is a graduate of Charles University's School of Law (2009). Within the framework of his studies, he also worked as a research assistant at the Department of Legal Theory and Law Studies.

In 2005 and 2006 he worked for a leading Czech company trading in ornamental goods, where he was primarily in charge of communication with foreign partners and translation activities. When Jakub worked as a paralegal for the law firm Daniel Mališ & Partners in the years 2006—2009, one of his main duties was to provide support for the team of lawyers, particularly in the area of litigation.

Jakub's interests include Roman law, motoring, volleyball and squash.

Jakub speaks fluent Czech and English (in 2004 he received a Certificate in Advanced English). He also has a good passive knowledge of German.