VoIP Engineer
Location
karachi division, sindh
Job Type
Full-time
Category
IT & Technology
Posted
May 28, 2026
We are looking for a skilled VoIP Engineer to design, deploy, and maintain our VoIP infrastructure. The role involves working with Asterisk, Kamailio, WebRTC, and cloud-based VoIP solutions, ensuring high-quality, secure, and reliable communication systems.
You will be responsible for troubleshooting complex VoIP issues, managing media handling, and optimizing system performance in cloud and on-premise environments.
- Configure, maintain, and troubleshoot Asterisk (PJSIP) and Kamailio SIP Proxy, including routing, dispatcher, registrar, and authentication modules.
- Set up and manage WebRTC environments (WSS/TLS, DTLS-SRTP) and resolve NAT-related issues such as one-way/no audio and call drops.
- Handle media relay using RTPengine / RTProxy, manage SRTP/DTLS/RTP encryption, and monitor call quality (jitter, packet loss).
- Administer Linux servers (Ubuntu/Rocky) and implement VoIP security practices (Fail2ban, SIP brute-force protection, fire...