| Date | March 2009 - October 2009 |
| Employer | OpenPeering |
| Experience | General L2/L3 network administration for NL-ix/OpenPeering/JointTransit. Setting up the Technical Support Desk.
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| Date | June 2008 - February 2009 |
| Employer | Quanza Engineering |
| Experience | General systems administration (Linux, FreeBSD, Solaris), Switch- and router management, tech support for multiple small and big internet-related companies. Creating loadbalanced web platforms using both soft- and hardware solutions. Maintaining several IX-connected networks, including public and private peering, transit links. |
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| Date | April 2007 - June 2008 |
| Employer | Nedstat BV |
| Experience | Core/edge fully redundant network design, implementation and management (BGP, OSPF) using Quagga/Linux, connecting to several transit providers. General systems administration. Grid Computing / High Performance Computing utilising ClusterVisionOS. |
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| Date | August 2005 - March 2007 |
| Employer | Support Net |
| Experience | General system engineer, VoIP technical consultant for products based on the ShoreTel platform, building Asterisk-based custom VoIP-solutions and Exchange platform. Also, core network management (BGP, OSPF) on several IXen (Ams-IX, NL-IX) as well as several transit providers. |
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| Date | November 2004 - February 2006 |
| Employer | NextGear |
| Experience | Building a software based PBX/IVR telephony system based on Asterisk, used as a critical communications system. Also, help adapt key websites to current standards and demands. |
| Notes | Part-time, 1-day-a-week job |
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| Date | April 2002 - August 2005 |
| Employer | Scarlet Telecom / Scarlet Internet |
| Experience | 1st Tier Technical Support for dialup- and DSL customers of OneTelNet, DDS, Cybercomm/GlobalXS and Scarlet. Creating and modifying support procedures. Later: Systems administration and programming for the internal development department. Technical advisor Marketing department on Internet products and customer communications through the Internet. Banner design. Webdesign and -maintenance for the main website. Building a software based PBX/IVR telephony system based on Asterisk for use by customers to setup their carrier preselection, and power dialing. Also for interactive Helpdesk and customer support. |
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| Date | September 1999 - September 2000 |
| Employer | Vuurwerk Internet |
| Experience | Technical Support, Development. 1st Tier Technical Support for customers, helping customers set up their websites. Modifying/tweaking administration system to set up hosting/mail. |
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| Date | May 1999 - February 2002 |
| Employer | Several (project-based) |
| Experience | PHP/Perl web development. Assignments included: modification and adaptation of in-house custom-tailored administrative tools; designing and developing a CMS
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