Marcin Eckert is a graduate of Harvard Business School, where he completed the Advanced Management Programme. He also took part in the Leadership Academy for Poland programme and studied at the Faculty of Law and Administration at the Nicolaus Copernicus University in Toruń.

Previously, Eckert worked for PZU where he held the position of the Corporate Director for Corporate Affairs. Between 2019 and 2021, Eckert served as a member of the Management Board of PZU S.A. and PZU Życie S.A. In the PZU Group, he was responsible for the strategy and projects, the Administration Office, the Corporate Supervision Office, the Foreign Companies Supervision Office and the IT Division. Between 2018 and 2020, Eckert was a member and a deputy chairman of the Supervisory Board of Alior Bank S.A. and chairman of the Supervisory Board of PZU Zdrowie S.A.; between June 2020 and June 2021, deputy chairman of the Supervisory Board of Bank Pekao S.A. Chairman of the Supervisory Board of Totalizator Sportowy Sp. z o.o.

Since 2001, Eckert has been working as a legal counsel. His areas of expertise include commercial law, tax law and labour law. Prior to the employment in Grupa PZU, Eckert held the position of Senior Associate in Bird & Bird Szepietowski i Wspólnicy (leader of the Benefits & Compensation practice). Previously also associated with TGC Tax Advisers Sp. z o.o. (Tax Division Director), Mazars Audyt Sp. z o.o. (Law and Tax Division Director) and Ernst & Young (Senior Manager).