I've been working in telecommunication since 1997 (at EUnet). In this path I worked as: system administrator (mainly Linux); services administrator (DNS; HTTP; FTP; IRC; etc); networker (OSPF; BGP; etc) and as developer of NMS. As developer I designed and developed (some times with a couple of other developers) systems to: make massive SNMP collection and store; real time process and summarize RTP packages from video service; perdition service of IPTV service quality on a DSL network, based on geographic referenced data; webservices for provisioning and troubleshooting for technologies like DSL and GPON using SNMP, TL1 and CLI interfaces. Almost all systems developed with Perl and using technologies as: Linux; MySQL and Redis.