I have more than 07 years of experience with different company as a opensource voip developer.
My working area in different opensource VOIP software like Asterisk,vicidial,freepbx,goautodial,freeswitch etc.. I am experience of vicidial customization (Custom Agent interface with your company logo,color and brand; Custom Admin interface; Custom Supervisor interface; Custom System Monitoring interface; Advance Reporting like Graph,Chart,PDF,excel; Popup customer details CRM; SMS integration; Email integration; Third party API integration; Remote database integration throw ODBC (Oracle,DB2,MS-SQL); Customer Satisfaction Survey; High availability (HA) two nodes cluster; Load Balancing). I have a lot of experience Asterisk development, Click2Call, Callback, A2billing, Vicidial and AGI custom script writing, IVR development using PHP, Python etc.
I have an extensive Linux knowledge and TCP/IP network administrator skills, including IPv6, IP routing with OSPF and BGP experience, Web server (apache and nginx) setup and support, Nginx load balancing, DNS (BIND) setup and configuration, Linux server security hardening, e-mail server setup (Sendmail/exim, DBmail, webmail/Squirrelmail), Perl programming, RADIUS knowledge, KVM virtualization, Asterisk software PBX (and FreePBX, too), system and network monitoring with Zabbix etc.
I have serious understanding of PostgreSQL and MySQL database engines.
Please take a look at my test results to find IT areas which I know best.