Ms. Winnik-Kalemba graduated from the Faculty of Law and Administration of the University of Wrocław in 1995. In 1995-1997, she participated in the post-graduate scholarship programme funded by the US government at Gergeotown University in Washington D.C. and the University of Kentucky the James W. Martin School of Public Policy and Administration. In 1999-2003, she trained to become an attorney-at-law. 

Since 2003, she has run her own law firm – Kancelaria Adwokacka Adw. Agnieszka Winnik-Kalemba. In 1986-1989, she cooperated with the Regional Executive Committee of the “Solidarity” Trade Union – the Lower Silesia Region (Regionalny Komitet Wykonawczy NSZZ Solidarność Region Dolny Śląsk) and the “Solidarity” Committee for Interventions and the Rule of Law (Komisja Interwencji i Praworządności NSZZ Solidarność) run by Zofia and Zbigniew Romaszewski. In 1989-2000, she worked for: the Executive Office of the “Solidarity” Trade Union - the Lower Silesia Region; the Law Offices of Bowles, Keating, Matuszewich & Fiordalisi a Partnership of Professional Corporation, Chicago USA (as a legal assistant); the Chairman of the Chamber of Regions of the Council of Europe (as a legal assistant); the Vivodeship Sejmik of Wrocław Voivodship; the Legal Office of the Lower Silesian Marshal Office in Wrocław (as its director). 

In 2006-2008, Ms. Winnik-Kalemba was a member of the Supervisory Board of PKO Bank Polski S.A., and in 2016 she was Deputy Chair of the Supervisory Board of PKO Bank Polski S.A.

Independent member of the Supervisory Board.