Curriculum Vitae

GNU/Linux System Engineer with 10 years of working experience in the field of small hosting parties and the accompanying servers. Programming of custom build scripts to automate, monitor, interconnect processes, services and servers. Administering LAN/WAN environments based on GNU/Linux and managing the security, performance, upgrades of the existing infrastructures. Designing custom intra-/extra-/inter- net applications and software connections between different programs and/or web-resources.

Programming Languages : Ruby (on Rails) , PHP, Perl, Bash
Application protocols : XML, XML/RPC/SOAP, AJAX, JavaScript (prototype, scriptaculous)
Servers : Apache, Bind, Postfix, Samba, MySql
Firewall/VPN : IPTables, IPSec (x.509), OpenVPN, Snort, Squid(Guard), Dansguardian
*NIX : Debian (based), Gentoo, OS/X

2005 (june) - now Govannon (own company)
2005 (march) - 2005 (june) Gremesh B.V.
2003-2005 Direkt Uitzendbureau (freelance in the evenings)
2001-2005 (march) H.B. Productions
1999-2001 More Access (MXXS)
1998-1999 To The Point (TTP) detachering (Heineken(MSCP), Alacatel(MSCP), More Access

Tonetastic: Writing a backend for communication between the Tonetastic website and their SMS / Content Providers. The backen will be notified when new members are signing up through the website. From there the backend takes care to proxy this information to the right content and sms providers which in turn proxy the incoming SMS messages to the backend. The backend takes care of the scheduled jobs and WAP Push messages to deliver the content to their subscribers. The backend includes a CRM to manage the customers and their subscription as well as statistics and reporting

Jarl Timber: Replacing all desktop workstations for linux thin-clients. Installation and configuration of Windows Terminal Server 2003. Expanding the infrastructure with Gnu/Linux firewall, Proxy, Mail Filter and Monitoring services. Analysing existing infrastructure and solving the detected bottlenecks.

Mapper Lithography : Setting up a complete new infrastructure because of the company moving to a new location. Building a temporary network and interconnection between the two locations so the users can move to the new building without being cut of from the network. Transparently optimizing the current server park with new servers and services to update security issues and data flow. Programming of some intranet applications like an hour registration- and a order purchase system. Training of in house admin to take over the current running servers and services.

The Sound of Data : Security audits ,secure and optimize the current network. Converting windows based web- and database servers from Windows to GNU/Linux. Setting up a dynamic firewall with IDS and IPS , proxy and virus scanning.

Direct Uitzendbureau HQ : Converting the complete windows based network to a GNU/Linux based network, including workstations. Used servers/programs (among others) : Samba , Cups, Tarrantella, Crossover, Debian, Lotus Notes.

Gremesh : Upgrading hosting services and implementation of monitoring systems/services. Starting up projects based on VoIP (asterisk) and programming an interactive PBX.

H.B. Productions : Setting up hosting services and converting the windows based server park to a GNU/Linux based one. Scripting, automation and interconnection of teletext, SMS, MMS, internet and Voice applications and services.