Jan Wallien's Location
Amsterdam, NH, NL
Jan Wallien's Work
- IT Manager @ Koornstra & Co
- Manager Carrier Services @ T-Mobile
- Manager Carrier Services @ Orange
Jan Wallien's Education
- De Haagse Hogeschool / The Hague University of Applied Sciences
Bachelor of Science
1984 - 1990
Jan Wallien's Skills
- Fraud Detection
- International Trade
- Telecommunications
- Revenue Assurance
- Mobile Devices
- Regulatory Affairs
- ICT
- GSM
- Service Management
- VoIP
Jan Wallien's Summary
Jan Wallien, based in Amsterdam, NH, NL, is currently a IT Manager at Koornstra & Co, bringing experience from previous roles at T-Mobile, Orange and Tele2. Jan Wallien holds a 1984 - 1990 Bachelor of Science @ De Haagse Hogeschool / The Hague University of Applied Sciences. With a robust skill set that includes Fraud Detection, International Trade, Telecommunications, Revenue Assurance, Mobile Devices and more, Jan Wallien contributes valuable insights to the industry. Jan Wallien has 2 emails on RocketReach.
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