Maciej is a cross-disciplinary business lawyer and strategic advisor known throughout the years from his IT, data protection dispute resolution and corporate work as well as from cross-boarder advice.

Attorney-at-law; authority in personal data protection, IT, cybersecurity, intellectual property and dispute resolution.

Leading lawyer of the largest IT implementation in Poland and CEE - ZSI in PKO BP bank (2002-2013)

Expert of the European Commission on cloud computing contracts (2014); Consultant of the Article 29 Working Party (2014); contributor to the GDPR

Laureate of the Award of the President of the Polish Data Protection Office (2021)

Editor of the bestselling Guide to the GDPR, recommended by the President of the Polish Data Protection Authority (2018 Polish edition, 2019 English edition),

Author and contributor to many books on data protection and cloud computing. His new book on communication in disputes is going to be published in 2022.

Represented the Republic of Poland in several bilateral investment treaty arbitrations (2009 - 2014). Recommended arbitrator of the Court of Arbitration at the Polish Chamber of Commerce

Before establishing "GP Partners" Maciej set up and managed the Polish office of the international law firm Bird & Bird (2008-2016)

Warsaw Bar of Attorneys-at-law

International Association of Privacy Professionals

ITechLaw

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