Usama Israr
VoIP Support Engineer and Linux Operations Professional
Talent
IslamabadMember since July 2, 2026
Asterisk PBXVicidialPJSIPSIP/RTP TroubleshootingLinux AdministrationGrafanaPrometheusHTMLCSSJavaScriptReact.jsNode.jsMySQLREST APIsMicroSIPZoiper
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Asterisk PBXVicidialPJSIPSIP/RTP TroubleshootingLinux Administration
About
VoIP Support Engineer and Linux Operations Professional with experience in Asterisk PBX, Vicidial, SIP/RTP troubleshooting, Linux administration, and VoIP infrastructure support. Skilled in PJSIP configuration, MicroSIP, Zoiper, monitoring tools, and frontend development technologies.
Experience
VoIP Support Engineer - Sybrid Pvt Ltd
(2025-01)
- Troubleshooting SIP/RTP issues and call connectivity problems.
- Working with Vicidial and Asterisk PBX environments.
- Monitoring Linux services, logs, and VoIP infrastructure.
- Managing users, operations, and backend monitoring.
Frontend Developer Intern - 99 Technologies
(2024-07 - 2024-10)
- Developed interfaces using React.js.
- Worked with HTML, CSS, JavaScript, Node.js, MySQL, and REST APIs.
Education
Bachelor of Computer Science - BSCS - University of Swabi (2018 - 2022)
