Marcin Gosiewski Doradztwo i Zarzadzanie (Privately Held; Myself Only; Information Technology and Services industry): Owner, (August 1999-Present) Private company specialising in Data Storage Systems IT services consulting, investor relations in IT and IT management consulting.<...
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Polska Telefonia Cyfrowa (Era) (Privately Held; Telecommunications industry): Specjalista, (2005-2007)