Senior/Lead VoIP (Asterisk) Engineer

Design and implement advanced Asterisk dialplans.

Debug and fix issues inside Asterisk core, modules, and C-based extensions.

Analyze and interpret stack traces, crashes, memory issues, and performance bottlenecks.

Implement patches, backports, or enhancements directly in Asterisk source code.

Develop custom modules (C/C++), when needed.

Apply deep understanding of SIP signaling, RTP, SDP negotiation, codecs, and NAT traversal.

Troubleshoot SIP flows.

Work with trunk groups, carriers, PSTN routing, and failover logic.

Work with Linux systems (systemd, networking, tuning, kernel parameters).

Work with Asterisk in cloud environments (AWS preferred).Participate in architecture decisions for resilient and scalable telephony clusters.