Cezary Siwek is a staff engineer specializing in video technology at Stream since 2024. Previously, they held significant roles in voice and video engineering, including serving as Head of Voice/Video Engineering at Rakuten Mobile, Inc. from 2021 to 2024, where they built a CPaaS from scratch. Cezary's extensive experience includes positions as a VoIP Developer at companies like Nexmo and Truphone, and various software engineering roles, showcasing a strong background in telecommunications and software development. They began their education at Politechnika Częstochowska, further enhancing their technical expertise over the years.
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