About Me

I work as a senior associate in Budapest, where I am the head of our Hungarian employment team, and also offer in-depth experience in technology-related legal issues.

In my role as the head of the local employment team, I work closely with local and international partners and senior lawyers of the firm to ensure that we best serve our clients' needs. I particularly enjoy nurturing client relationships as well as taking part in various projects aiming at devising and delivering innovative solutions for our clients.

I have extensive experience in employment matters, having advised multinational clients on complex restructuring and collective redundancy projects. I often support our clients with termination of employment, localisation of employment contracts and employee transfers, as well as representing employers in lawsuits concerning overtime allowances and unlawful termination claims.

In addition, I am also an expert in IT, outsourcing, data protection, telecommunications, ecommerce and software licensing matters. I have successfully coordinated a number of complex GDPR compliance projects in a wide range of sectors including IT, manufacturing, insurance and market research. I have also been involved in significant IT and business process outsourcing projects.

Over the years, I have authored articles on employment, outsourcing and data protection issues on our blog, website as well as in various legal and business magazines. I am also a regular speaker at various client events and conferences.
  • I provided legal advice to the global management of a multinational pharmaceutical company on a sensitive restructuring project including the termination of employment and investigation of material misconduct of top managers.
  • I provided legal advice to a market leading Internet search engine service provider on a complex collective redundancy project.
  • I represented a multinational plastic equipment manufacturer company before courts in relation to employment lawsuits concerning the lawfulness of termination.
  • I coordinated complex GDPR compliance projects for multinational companies operating in the market research, manufacturing, insurance and technology sectors.
  • I coordinated the pitch process and won a retainer contract with a large UK-based telecommunications service provider covering 16 CEE countries.


  • Queen Mary, University of London, LLM, Computer and communications law
  • Pázmány Péter Catholic University, Postgraduate Diploma, EU law
  • Pázmány Péter Catholic University, Faculty of Law, JD


  • Budapest Bar Association in 2008
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Siegler Bird & Bird Law Office is regularly engaged on dismissal and collective redundancy matters, international transfers, data protection, trade secrets and regulatory instructions. It is also often involved in the employment aspects of M&A transactions. Univision, Intrexon and General Electric Hungary are clients. Team head Pál Szabó and senior associate Zoltán Tarján are the key contacts.

Legal 500 Hungary, Employment 2019

The 'very commercial' Zoltán Tarján is the key name at Siegler Bird & Bird Law Office which provides 'excellent' advice to a largely TMT and life scienses client base.

Legal 500 Hungary, Employment 2016

Siegler Bird & Bird Law Office is 'able to find efficient solutions for difficult problems'. The team is noted for its transactional expertise and it advised Providence Equity on the acquisition of a music and festival business in Europe. Magyar Telekom and Alma Media are also clients. Team heads David Dederick and Bálint Halász are recommended, as are senior associates Zoltán Tarján, who is experienced in data protection and outsourcing, and Gábor Helembai, who handles gaming and betting sector mandates.

Legal 500 Hungary, TMT 2019

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