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Zoltan Markella is an experienced technology professional currently serving as a Senior Product Manager - Infrastructure at Vonage since December 2020. Prior to this role, Zoltan held various positions at Three from December 2012 to December 2020, including Senior Network Reliability Engineer and Core Network Architect, where responsibilities included improving service reliability and coaching engineering teams. Earlier experience includes roles at Ericsson as a Senior Design Engineer and VAS Specialist, where Zoltan focused on real-time data solutions and VAS platform stability, as well as a decade at Nokia progressing from Senior Software Engineer to Technical Architect in mobile network components. Zoltan holds a BSc (Hons) in Information Technology and Computing from The Open University.