He graduated from the Warsaw Coaching School, and has previously managed
Limanovia Limanowa and
Wisła Puławy. He also coached
Korona Kielce from 2004 until he was succeeded by
Arkadiusz Kaliszan. Wieczorek was appointed coach of Odra Wodzisław in June 2018, before moving onto
KKS 1925 Kalisz a year later, winning promotion with them in 2020. He was dismissed on 19 October 2021. On 10 May 2022, he returned to Odra for his fourth stint. He left the team at the end of the season after saving it from relegation, with a record of four wins and two losses. Shortly after, on 1 July 2022, he was appointed manager of another
III liga side,
Polonia Bytom. He left the team on 9 January 2023 citing health issues, with a record of 12 wins, one draw and four losses. On 7 March 2023, Wieczorek replaced Marek Hanzel, who himself was facing health issues, as head coach of
IV liga club Unia Turza Śląska. He led the team in just four league games however, as on 11 April 2023 he signed a deal with
I liga club
Arka Gdynia to become their manager until the end of the season. On 16 June, it was announced Wieczorek's contract would not be extended. ==Honours==