Senior VoIP Engineer
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Job Description
Senior VoIP Engineer at Synergy Beam Solutions handling design and maintenance of real-time voice systems for telecommunications. Leading architecture and scalability efforts for core SIP-based SaaS platform.
Responsibilities:
- Lead the design and maintenance of mission-critical, real-time voice systems
- Ensure reliability, scalability, and security while enhancing voice quality and observability
- Design, develop, and maintain high-performance SIP and RTP-based VoIP systems
- Utilize expert-level skills to diagnose and resolve complex routing, codec, and signaling issues
- Proactively optimize network performance across critical protocols
- Integrate, support, and ensure seamless interoperability between PBX systems, SBCs, and modern cloud VoIP environments
- Define, monitor, and improve call quality metrics through performance tuning
- Lead technical architecture and deployment of advanced voice applications
- Act as the final point of technical escalation for intricate VoIP incidents.
Requirements:
- 6+ years in software engineering, with a minimum of 4 years dedicated to VoIP/SIP development
- Deep experience with core VoIP infrastructure components, specifically Freeswitch and Kamailio
- Proficiency in scripting and development with Lua and Python
- Expert-level command of network protocols and advanced debugging tools (Wireshark, SIPp, libpcap, Linux/BSD sockets)
- Practical experience with WebRTC, configuring and managing TURN/STUN servers, and deploying solutions on major cloud platforms (AWS, Google Cloud, Cloudflare)
- Understanding of traditional telecom hardware, including GSM, E1 gateways, and serial-connected devices
- Proven track record in building highly scalable systems and implementing effective automated testing frameworks.
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