Senior Linux System Administrator/VoIP Engineer7+ years experience in VoIP Industry I am focused on VoIP - kamailio + asterisk + Freeswitch + db +API, my software stack:VoIP Servers:Asterisk, OpenSIPS, FreeSWITCH & Kamailio VoIP Technologies,WebRTC, PJSIP & IAXVoIP Billing Frameworks:ASTPP & A2BillingIP PBX Frameworks:FreePBX, Voximal & FusionPBX SMS Systems:Kannel Server (SMPP) Web Development Technologies:CodeIgniter, WordPress, Web2Py, Python Django Databases:MySQL, Postgres, Maria & MongoDB Scripting:Bash, Python, PHP Web Servers:Apache, Nginx Monitoring Platforms:Nagios Protocols:HTTP, HTTPS, TCP, UDP, SMPP, SIP, SDP, RTP, RTCP  Regards :Gaurav Kumar