[1] His mother worked as an engineer in the design of hydraulic structures, and his father was a professor at Kaliningrad State Technical University, where the family relocated shortly after his birth.

Later, he transitioned to public service, where he became the chief specialist at the Kaliningrad mayor's office and subsequently headed the consumer market department.

[2][3] In the early 2010s, Shumanov joined the Kaliningrad Regional Anti-Corruption Experts Society, a nonprofit organization, becoming a board member with a focus on corruption studies.

[17] In July 2023, Shumanov was fined 100,000 rubles by the Moscow Presnensky Court for failing to label his work as that of a foreign agent.

[19] Although Transparency International Russia was an autonomous organization, its board announced its dissolution on 16 March 2023 due to these legal risks.