Product Knowledge (Installation, Configuration, Operations, Maintenance)
- Asterisk (deep): Robust operational and development-level understanding of Asterisk internals, especially large and complex dialplans with business logic.
- Dialplan engineering: Ability to design, refactor, and troubleshoot multi-branch call flows, failover paths, and edge-case routing behavior.
- Call encryption: Practical handling of TLS and SRTP in production, including certificate lifecycle and interop troubleshooting.
- SBC stack: Solid Kamailio skills for SIP routing/policy and RTPengine operation for media anchoring, NAT traversal, and media security.

SIP Capture and Troubleshooting
- PCAP and Wireshark: Confident packet-level troubleshooting for SIP, RTP, SRTP, TLS handshake issues, retransmissions, and one-way audio.
- Homer SIP capture: Efficient use of capture/visualization to correlate signaling and media events across distributed components.
- End-to-end call tracing: Ability to correlate identifiers (Call-ID, tags, branch params, dialogs) across Asterisk, Kamailio, and SBC layers.




(- Test strategy depth: SIP integration tests, regression suites for dialplan logic, and synthetic call monitoring in production-like environments.)

Operating System and Automation
- SUSE Linux (LPIC-1 level or higher): Comfortable with package/service management, networking, process control, and system diagnostics.
- Python (basic): Scripting for automation, validation, and lightweight operational tooling.
- Cron and shell scripting: Building and maintaining jobs for log rotation, housekeeping, health checks, and routine maintenance tasks.
- Log and filesystem hygiene: Managing retention, rotation policies, and storage pressure under high call volume.

Network and VoIP Foundations
- TCP/UDP deep understanding: Behavior under packet loss, reordering, retransmissions, and impact on signaling/media quality.
- VoIP protocols (deep): SIP, RTP, SRTP, TLS, mTLS, codec negotiation, DTMF transport, NAT and

📌 VoIP Platform (Pune)
🏢 BMW TechWorks
📍 Pune