Cleo Wientjes
Customer Journey Expert at Bank Mendes Gans | Amsterdam, North Holland, Netherlands
Cleo Wientjes’s Email & Phone Number
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Customer Journey Expert at Bank Mendes Gans in January 2019 - Present
Owner, Self employed, LEAN Management Expert, Six Sigma and Project Manager at Cleo Wientjes BV in April 2009 - December 2021
Associate Lean Consultant @SYMBOL BV at Symbol BV in November 2018 - December 2020
IBIS UvA, Six Sigma Black Belt, September 2026
IBIS UvA, Six Sigma Green Belt, September 2026
Insights International, Course Project management Advanced, September 2026
A history of being different... Bank Mendes Gans (BMG), a member of the ING Group, was founded in Amsterdam, The Netherlands, in 1883. BMG is known world-wide as a niche bank for liquidity and information management services, providing integrated customized solutions for corporate companies around the globe. BMG has developed and perfected a full and integrated range of liquidity and information management services required by its corporate clients whom it serves with a high level of professionalism and personal service.
Discover more about Bank Mendes GansData Management Expert @BMG | MSc Data Science
Data Management Expert at Bank Mendes Gans
(September 2025 – Present)
Managing Director at Bank Mendes Gans | Global Cash Management | Clients & Products , USA
Managing Director, Clients & Products USA at Bank Mendes Gans
(January 2010 – Present)
Head of BMG Treasury | Co-Chair BAFT Future Leaders Council
Head of BMG Treasury at Bank Mendes Gans
(January 2023 – Present)
T24 Core banking Consultant
- Implementation of Temenos T24 Core Banking projects from analyse & design phase to post-live support.
- Possess the capability to play integral technical roles as part of large project teams, working with the senior management within technology and business groups, vendors ...
Principal Software Engineer | Full Stack Java / NodeJs Senior Expert
In my role as a Full Stack Engineer at Bank Mendes Gans, I utilized technologies like Springboot, Java, Android, Swift, and Azure DevOps Services to develop the bank's mobile application and microservices. Collaborating with cross-functional teams, I enhanced user experience a...
I program so my dog can have a better life
I provide consultancy as an expert back end Java freelancer.
My speciality is to design, develop and test large scale back end cloud based application using Java 21 and Spring 5. With focus on code quality, I am able to work in a TDD way and provide teams with great knowledge ...
What is Cleo Wientjes email address?
Email Cleo Wientjes at [email protected] and [email protected]. This email is the most updated Cleo Wientjes's email found in 2026.
How to contact Cleo Wientjes?
To contact Cleo Wientjes send an email to [email protected] or [email protected]. (updated on November 08, 2025)
What company does Cleo Wientjes work for?
Cleo Wientjes works for Bank Mendes Gans.
What is Cleo Wientjes's role at Bank Mendes Gans?
Cleo Wientjes is Customer Journey Expert
What industry does Cleo Wientjes work in?
Cleo Wientjes works in the Banking industry.