Sandra Blankestijn has extensive experience in customer service management and operational excellence. Currently serving as Ketenmanager and acting Manager Customer Excellence at Yielder since August 2025, Sandra has previously held managerial positions in organizations such as Tele2 Nederland and Odido Nederland, where responsibilities included overseeing customer service teams, managing billing processes, and implementing efficiency improvements through LEAN methodologies. Sandra also contributed to team leadership at Vuurwerk Internet BV and Versatel, focusing on team performance, coaching, and client satisfaction.
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