Jack Gielen is the COO of Cobase. Next to looking after our operations, Jack is responsible for Client Services, Client and Bank implementations, Bank relations, Legal and Compliance.

Jack has twenty-five years of experience in the financial industry, transaction banking, digital channels, leading product management and large change programs.

Before joining Cobase, Jack worked in several international positions at ABN AMRO bank. RBS, Barclays and Rabobank.

The drive of Jack is to make clients’ experience and perception of Cobase the best in the industry.



  • Building new propositions and teams
  • Corporate payments
  • Client channels
  • ERP integrations