Since 2017, he has been working at Prozorro.Sale as CFO, and since July 2022, he has worked as the company's COO.

From 2015 to 2017, he worked on a consulting project on business process optimization and automation for the Frankfurt office of Ernst and Young GmbH (one of the Big Four companies), where he was involved in implementing the data analysis process.

From 2004 to 2007, he worked as an external consultant on finance, financial accounting, accounting reporting, and business process optimization in the Kyiv and Donetsk offices of Ernst and Young GmbH.

He has experience in financial and operational management. Sergiy worked for eight years at Starlight Media Holding, including as Deputy CFO.