János Székely

Born in Timișoara of Hungarian heritage, he started his football career with local club Politehnica Timișoara, where he played 8 matches in Liga II between 2000 and 2002. In 2003, he was bought by Universitatea Cluj for which he played 90 matches and managing to score 22 goals. After his good performance in Liga II Petre Grigoraş, coaching Oțelul Galați at that time, decided to transfer him. He debuted for Oțelul Galați in a cup match against Steaua. His first match in Liga I, in February 2007, was a victory against Unirea Urziceni.

Steaua București

On 6 May 2008 he signed a five-year contract with Steaua București, with a reported transfer fee of around €1.5 million and the midfielder would earn €200,000 per season. On 23 July 2009 he scored the first goal of the second leg against Újpest FC, victory which enabled Steaua's qualification in the next round. Szekely was released from Steaua in June 2011, and then signed a contract for two and a half years with Volga Nizhny Novgorod, in the Russian Premier League.

Korona Kielce

On 22 August 2012, Korona Kielce announced that Szekely would become a player for the Polish Ekstraklasa club. He signed a one-year contract.

Oțelul Galați

UEFA Intertoto Cup: 2007 Steaua București

Cupa României: 2010–11