Technical skills

  • PHP, mainly Symfony 3 and 4 and Contao 4
    • CMS websites
    • custom web applications
    • API development
    • deployment with satis & composer
    • version control with git
    • software and database architecture
    • GUI design
  • Linux System Administration
    • webservers
    • database clusters
    • log servers with syslog-ng, Elasticsearch and Kibana
    • open source PBX systems like Asterisk and Freeswitch
  • Network
    • planning, deploying and maintaining networks
    • dynamic routing
    • (linux) firewall conception and maintenance (L2 and L3)
    • security concepts
    • VPN
  • MikroTik in general, and RouterOS in particular
    • basic setup (DNS, DHCP, static routing, ...)
    • multi WAN/ECMP
    • dynamic routing (RIP, OSPF, BGP)
    • traffic engineering with MPLS/VPLS
    • VPN
    • WiFi Controller (CAPSMAN)
    • point-to-point links
  • Virtualization
    • VMware ESX clusters
    • Microsofort Hyper-V clusters
  • Backup / Data Protection
    • Veeam Backup & Replication

Language skills

  • German (mother tongue)
  • French - learned it for eight years in secondary school, by now it is a little rusty ;-)
  • English - B2 level - I'm lacking pronunciation practice, so sometimes it is a little unclear
  • Spanish - just joking, the only word I know is "el funcionario de correos" which means "post office clerk"

Work experience

  • 11 years in IT in general (2007 to now)
  • 9 years in web application development and linux system administration (2009 to now)
  • 8 years in network engineering (2010 to now)
  • 4 years as managing director of the wiseape GmbH
  • 1 year civilian service in a workshop for disabled persons

Interests (in no specific order)

  • eletrical and electronical engineering
  • psychology / social engineering
  • art
  • military engineering
  • communications engineering
  • automotive and aerospace engineering
  • railroad engineering (I'm a big fan of the E10/BR110)
  • railroad safety systems
  • economics
  • athletic sports
  • climbing (sports climbing and industrial climbing / rope access)
  • science fiction
  • chemistry - loved it in school
  • electronic music (Tangerine Dream, Kraftwerk, and many more)
  • books - yes, these things made of paper

In fact I'm very curious about almost everything which has anything to do with technical stuff.