He was promoted to the first team two years later, and made his debut in February 2014, as a substitute for Adam Sušac in a 3–2 defeat to FSV Frankfurt in the 2.

[1] On 14 September 2016, VfL Wolfsburg announced the signing of Stefaniak from Dynamo Dresden for the following season for a transfer fee of €2 million.

[5] On 5 October 2020, the last day of the 2020 summer transfer window, Stefaniak re-joined former club Dynamo Dresden on loan for the 2020–21 season.

Liga club Erzgebirge Aue on 3 June 2022, signing a one-year deal with an option for an additional season.

[9] This biographical article related to association football in Germany, about a midfielder born in the 1990s, is a stub.