Zsombor is a product enthusiast and builder with an impressive track record in mobile app development. Prior to his current role at Proxy, he co-founded and served as the Head of Engineering at Covid Watch, a US-based non-profit organization that aims to use privacy-preserving mobile technology to stop COVID-19 and save lives. While at Covid Watch, Zsombor designed and developed the TCN Bluetooth protocol, an open-source, decentralized, and anonymous Exposure Notification protocol. Although the protocol did not achieve widespread adoption, it served as a basis for similar ideas that were later used in the Apple/Google Exposure Notification API. Notably, the Covid Watch app was used in the state of Arizona and Bermuda.With over 15 years of experience in mobile app development, Zsombor also founded IZE, Ltd. His apps have garnered recognition from prominent tech news publishers and blogs, including DaringFireball, ProductHunt, TechCrunch, and App Store Editorial.Zsombor's notable projects include the Berkanan Messenger, a Bluetooth-powered mesh messaging app that gained attention in the media for its use by individuals affected by the Ukrainian-Russian war to communicate with loved ones. Zsombor open-sourced the Berkanan SDK, allowing developers to integrate mesh messaging capabilities into their own apps.