Sietske Rijken

Sietske Rijken has extensive experience in financial administration and team leadership, currently serving as Teamleider 1 at Portaal since March 2023. Prior to this, Sietske worked at DDB Unlimited for eight years, holding the roles of Controller and providing financial administration and HR support. Earlier experience includes a position at Dutchwaters BV, overseeing financial administration and personnel matters, as well as a role at Oostzijde Beton BV, focused on financial administration and HR. Sietske's career began as an Administratief specialist at GZ Kantoorinrichters B.V., where responsibilities included order processing and invoice management.