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eSIM TechnologyInternational RoamingMobile NetworksDigital Nomad LifestyleTravel Tech
Oleg Maskhov is a Senior Tech Writer and Connectivity Analyst at Cellesim. With a background in telecommunications engineering and over a decade of experience as a digital nomad, Oleg specializes in testing mobile network performance and eSIM reliability across the globe. He helps travelers avoid roaming fees and stay connected.