Szymon Sieniewicz

Head of TMT/IP practice, Warsaw

“I am a technology, privacy and IP lawyer regularly advising clients in matters relating to data protection, IT, new technologies, cybersecurity, e-commerce and intellectual property rights. I strive to provide clients with practical, creative and business-friendly solutions to their legal challenges."


Education and qualifications


Szymon is a Polish qualified lawyer (adwokat) specializing in all aspects of technology, privacy, intellectual property and e-commerce law. His experience includes transactional, regulatory, and contractual matters relating to data protection (GDPR, ePrivacy), IT agreements (outsourcing, licensing, cloud computing), new technologies (AI, IoT, big data), intellectual property, cybersecurity and telecommunications.

Work highlights

  • International banks, brokerage houses, insurance companies, real estate companies, HR solutions providers, healthcare service providers, chemical companies, mass media firms on full GDPR implementation projects, conducting audits of data protection compliance, preparing gap analysis reports and drafting and implementing all documentation required by the GDPR

  • Orange Polska on the auction sale of a 50% stake in its fibre-to-the-home business in Poland to APG, in scope of data protection matters

  • Carrier Global Corporation (NYSE: CARR), a world leader in heating, air-conditioning and refrigeration solutions, on its acquisition of Nlyte Software, a leader in data center infrastructure management (DCIM) software, in scope of TMT/IP

  • LUX MED Group on a transaction aimed at acquiring Lecznice Citomed, in scope of all TMT/IP matters

  • Nexi, the leading PayTech company in Italy, listed on MTA of Borsa Italiana, on Polish TMT/IP law aspects of all-share merger with Nets, the Nordic payment services provider, a transaction valued at €7.8bn

  • A Chinese mobile and online payment platform in relation to the introduction of new payment services on the market from the data protection and intellectual property law perspective

Education and qualifications

Szymon graduated with a distinction from the Faculty of Law at Jagiellonian University and completed LL.M. studies at Ludwig Maximilian University of Munich. As part of the Erasmus programme, he studied at Free University of Berlin, and completed studies in new technologies law run by Kozminski University in Warsaw.

Szymon is a Certified Information Privacy Professional/Europe. He obtained certification issued by the IAPP - International Association of Privacy Professionals.

He speaks Polish, English and German.