Sergey Arefyev is a skilled application security professional currently serving as a Senior Application Security Engineer at BI.ZONE, where they conduct penetration testing of web, API, and mobile applications. Previously, they worked as a Penetration Tester at Инфосистемы Джет, focusing on application security testing and vulnerability automation. Sergey holds a degree in Information Technology Security from MIREA, having graduated in 2023, and is known for employing Python and Bash in their automation tasks. They are actively involved in bug bounty programs during their free time.
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