Specialist in bankruptcy and corporate law, as well as legal regulation of debt collection. Founder and Chairman of the National Association of Specialists in Bankruptcy and Distressed Assets Management “Bankruptcy Club”. Associate Professor of the Russian School of Private Law in the Private Law Research Centre under the President of the Russian Federation named after S.S. Alekseev. Master of Private Law, Ph.D. in Law. In 2006–2014, Oleg Zaitsev worked at the Supreme Arbitration Court of the Russian Federation Analysis Department (first at the Department of Court Practice Analysis and Generalization, then at the Department of Private Law). He contributed to the drafting of numerous clarifications issued by the Supreme Arbitration Court of the Russian Federation and federal laws on bankruptcy and corporate law, as well as the law on collectors. Member of the Scientific-Consultative Council under the Supreme Court of the Russian Federation and its working groups which prepare a number of clarifications on bankruptcy.