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About the role
We are looking for a highly skilled Senior VoIP Administrator to manage and evolve a large-scale real-time communications infrastructure. This role requires deep hands-on expertise with Asterisk, Kamailio, WebRTC and Linux servers. Responsibilities Administer, maintain, and troubleshoot production VoIP infrastructure based on asterisk and kamailio. SIP, RTP, TURN, WEBRTC troubleshooting dial plans developments sngrep, tcpdump, Wireshark Advanced level using Bash, SSH and Ansible Monitor platform health, QoS, and call quality metrics Work with telecom carriers to troubleshoot routing and interoperability issues Maintain documentation, procedures, and network diagrams Qualifications Deep hands-on expertise with Asterisk, Kamailio, WebRTC and Linux ser 5+ years of experience administering VoIP and Linux platforms 5+ years of experience with Debian/Ubuntu iptables/nginx knowledge Strong analytical and troubleshooting abilities Ability to work independently in production environments Ability to prioritize during outages and incidents.