Although he started his career as a researcher and then as an independent entrepreneur, Marko spent most of his professional career in various management positions in large Slovenian technology companies such as Hermes Plus (S&T), Hermes SoftLab (Comtrade), Mobitel and Telekom Slovenije.

As a mentor, he now transfers his experience and business contacts, which he gained during his work in various areas from development management, major project management, sales management, corporate group management and temporary company management, to start-ups.