In 2004 he received the diploma of the Ukrainian Academy of Foreign Trade under the Ministry of Economy of Ukraine in "Management".

Work began legal counsel for private law firms, and in December 2001 became General Counsel of State Savings Bank of Ukraine, where he continued to work until 2005 in senior positions in the department of legal support.

[citation needed] In November 2010 he was elected a deputy of the Kyiv Regional Council, member of the standing committee on law and order and fighting corruption.

[citation needed] In the parliamentary elections in December 2012 has held the position of Head of Legal Department of the United Opposition "Batkivshchyna".

[citation needed] In September 2014 Petrenko became a founding member of his new party People's Front.