Mariusz Walinowicz started their career in 2011 as a salesperson at Telefonia Dialog. In 2012, they joined Netia as a customer service advisor, and later that year they also started working at Ultimo S.A. as a customer service advisor. At Ultimo S.A., they eventually became the head of the contact center team.
From 2010 to 2013, Mariusz Walinowicz studied at Wyższa Szkoła Zarządzania "Edukacja", where they obtained a Licencjat (Lic.) degree in Komunikacja społeczna i dziennikarstwo.
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