Marnix is partner and co-founder of Workx advocaten. He has extensive experience in litigating and advising employers, employees and works councils. He also advises on a regular basis on the employment law aspects of mergers and acquisitions.
Jochem de Roos
In 2011, Jochem co-founded Workx Advocaten, driven by the ambition to build a law firm that is specialized, approachable, and entrepreneurial.
Maaike de Jong
In 2011, adventure called. Together with Marnix and Jochem, Maaike founded Workx Advocaten, one of the best decisions of her career, as soon became clear. The firm developed into a unique boutique law firm specializing in employment law.
Bas den Ridder
Bas began practicing law at Baker & McKenzie in 2006 where he specialised in Dutch employment law. In 2014 Bas joined Workx advocaten as a partner.
Juliette Niersman
Juliette is appointed as Partner since 1 January 2024. She enjoys working within the corporate employment law practice, but also enthusiastically pulls out the gown for court when necessary.
Justine Schellekens
Justine has been a lawyer since May 2019 and joined the Workx Advocaten team in February 2022. She advises and litigates on all aspects of employment law, representing both employers and employees with equal dedication.
Marlieke Schipper
Marlieke has been a lawyer since 2017 and joined Workx Advocaten in 2022. She advises on various employment law issues for both employers and employees.
Wies van Pesch
Wies started her career as an employment lawyer in 2016 and has been attorney at law since 2018. She completed her Master’s in Employment Law at the University of Amsterdam and has been working at Workx Advocaten since 2022.
Emma van der Vos
Emma has been practicing law since 2015. She is engaged in all aspects of employment law and is known for her drive and strong sense of justice. In addition to her broad daily employment law practice, she specializes in litigation, wage-related matters, dismissal, and collective labor law. Her interests also lie in cases involving discrimination and inappropriate workplace behavior.
Alain Heunen
Alain is trained as an employment lawyer in the broadest sense of the word. He studied at Leiden University and began his career in employment law in 2017 at AKD in Rotterdam. In July 2020, Alain joined Workx Advocaten, where he focuses on representing employees.
Kay Maes
Kay has been a lawyer since August 2024 and has worked at Workx as a legal assistant since November 2023. Kay primarily focuses on assisting and advising both employees and employers on employment law issues related to performance, reorganizations, workplace conflicts, and dismissal, and is also closely involved in the due diligence practice.
Julia Groen
Julia joined the Workx Advocaten team in 2025. She has been active in employment law since 2016. Throughout her career, Julia has gained extensive experience in all areas of employment law. In recent years, she has particularly specialized in reorganizations, mergers and acquisitions, and flexible employment relationships.
Erika van Zadelhof
Erika joined the Workx lawyers team in January 2024. Before she entered the legal profession, she worked as a clerk at the Haarlem and Amsterdam courts for three years. She has mainly dealt with employment, rental and consumer law matters. Erika also worked as secretary for the neighborhood court in Amsterdam-Zuidoost.
Barbara Rip
Barbara has been a lawyer since April 2019 and joined Workx Advocaten in 2024. She advises and litigates on all aspects of employment law. Prior to working at Workx, Barbara worked as a lawyer at A&O Shearman, where she specialized in employment law.
Heleen Pesser
Heleen joined Workx Advocaten in November 2023, initially as a student trainee, then as a legal associate, and since March 2025 as a lawyer. During her law studies at Leiden University, she developed a strong interest in employment law. That interest was sparked further during an internship at a law firm in Sint Maarten, where she was first introduced to employment law in practice.
Hanna Blaauboer
Hanna is Workx’s Head of Office. Before she started at Workx, Hanna travelled the world as a model. She worked for many different brands and lived in Paris and New York. This is why she has a great knowledge of the English and French language.
