Follow me on Google+! - electronic brain surgery since 2001

Jobs and Skills

Beside my several private Projects, I gained some experience occupationally.

Professional experience

January 2003 - present multiple positions, CosmoCode GmbH

  • Project Manager Software Development
    • Supervision and Coding in different Software Projects
    • Mainly PHP and Python projects but also C and Perl projects
    • Creation of technical concepts including interface and interaction mockups
    • Doing offers, cost/time estimations, invoices
  • Web Developer
    • PHP, HTML/CSS, JavaScript Development
    • Use of various webrelated backend techniques (MySQL, Oracle, XML/XSLT, …)
    • Experience with different JavaScript libraries (Prototype, JQuery)
    • Creation of a custom CMS for a high volume website (4 Server cluster system)
  • System Administrator
    • Systemadministration and Networkmanagement (Debian, Redhat, SuSe)
    • Perl and PHP Application Development
    • Configuration of Apache, Tomcat, Bind, LDAP, ipchains/iptables …
    • Installation and Configuration of FreeS/WAN IPSec VPN gateway

April 2002 - July 2002 Internship, NetCologne GmbH

  • Development of a XML-based modular Searchengine Interface (PHP)
  • Coding of some automated XML to website converters (Perl)
  • General Perl and PHP programming for
  • For a complete description see this report (german)

June 2001 - March 2002 Freelancer on “QDS” Havelhöhe

  • Tasks see below

November 2000 - March 2001 rabbit Software AG

  • Installation and customersupport (PHP3, MySQL, Suse)

April 2000 - October 2000 Freelancer on “QDS” Havelhöhe

March 1999 - March 2000 Civil service, Gemeinschaftskrankenhaus Havelhöhe

  • Networkadministration (Suse, Debian, HP-UX, Windows NT)
  • Usersupport (Windows 95/NT, Office, Workflow systems)
  • Intranet setup and design (Apache, SSI)
  • Setup of an complete usermanagement system based on Samba (Primary Domain Controller with profile synchronization and login scripts)
  • Installation and configuration of several Linux systems (Suse, Debian)

October 1998 - January 1999 Internship, InterAct Software GmbH

  • Animation design in 3D Studio Max
  • Creation of a CDROM presentation in Macromedia Director
  • Applicationprogramming with Delphi
  • Webdesign
  • Assembly, configuration and maintenance of several computer systems


I finished my studies of Applied Computer Science in 2004 with my diploma thesis on Spontaneous Wireless LANs (german).


Active Directory Android Apache Bash C C# C++ CodeIgniter consulting CSS Delphi Dovecot Exim Flash fullstack git HTML HTTP IIS IPSec Java JavaScript JQuery kanban LDAP LESS Linux MySQL OpenVPN Oracle Perl PHP Postfix Postgres Project Management Prototype Python React RegExps scrum Security SMTP SOLR SQlite Vim VPN Web Wiki Wordpress XML XSLT