Born on October, 27, in Lugansk in the family of workers. Graduated from intermediate school N50 in Lugansk. From 1991 to 1992 served in Armed Forces of the USSR and Ukraine. From 1993 to 1999 studied jurisprudence at the Eastern Ukrainian State University.
In 1993 began to work as a lawyer in industrial enterprises and law firms in Lugansk.
From 1997 to 2001 worked in the Securities and Exchange Commission as a main specialist, head of the department, head of assistant and advisers staff of the President of Commission. From 2003 to 2005 was member of the Commission and headed the administrative office of the Commission.
From 2005 to 2006 in the intervals between the civil service - practiced law.
From 2006 to 2010 was a member of V-th and VI-th Parliament of Ukraine, Deputy Head of the Verkhovna Rada Committee on Justice.
In 2009-2014, according to the quota of law universities, was elected and worked as a member of the High Council of Justice of Ukraine.
From 2010 - Deputy Head of the Presidential Administration of Ukraine – Head of the Main department on judicial matters, Advisor of the President of Ukraine.
From January to February 2014 - first Deputy Head of the Presidential Administration of Ukraine.
From 2010 to 2014 coordinated work of judiciary department, department of reforming police authorities, represented Presidential Administration of Ukraine in courts, pardoning citizens and departments responsible for the examination of draft laws.
From March 2014 till now - practice law and participate in human rights activism.
Ph.D. in Economics (2001).
Head of Constitutional Law Department of Taras Shevchenko National University of Kiev (2010-2014).
Member of Presidential Commission on Mercy (2010).
Head of Working Group on criminal justice reforms (2010).
Member of Specialized Academic Board of National Academy of Prosecution of Ukraine (2011).
Head of Working Group on prosecution and advocacy reforms (2011).
The author of two scientific monographs and more than 30 scientific works on problems of legal regulation of constitutional justice, and on theory of constitutional process.
Head of composite authors of Criminal Procedural Code of Ukraine, law on judiciary and status of judges, laws on prosecution and advocacy activity, laws on humanization of criminal liability for economic crimes, law on anti-raider crimes ect.