The Role
Lead architecture, scaling, and reliability of SIP/RTP-based VoIP systems. Troubleshoot signaling, routing, and codec issues with packet captures and logs, optimize network/protocol performance, integrate PBX/SBC/cloud VoIP, improve call quality metrics, and drive deployment of advanced voice features including WebRTC and AI-driven capabilities.
Summary Generated by Built In
🎧 Senior VoIP Engineer
Synergy Beam Solutions is at the forefront of IT and cybersecurity, currently building a state-of-the-art telecommunications platform designed for high-performance call centers worldwide. We are seeking a Senior VoIP Engineer to be a foundational member of our engineering team, driving the architecture, scaling, and reliability of our core SIP-based SaaS platform.
Join us if you are passionate about tackling complex challenges and redefining communication and emergency systems globally.
Tasks
🎯 Your Impact:
You will lead the design and maintenance of mission-critical, real-time voice systems. Your focus will be on ensuring unparalleled reliability, scalability, and security while enhancing voice quality and observability across our global cloud infrastructure.
Key Responsibilities:
Architect & Optimize: Design, develop, and maintain high-performance SIP and RTP-based VoIP systems, serving as the subject matter expert on core VoIP protocols.
* Deep Troubleshooting: Utilize expert-level skills to diagnose and resolve complex routing, codec, and signaling issues using packet captures (Wireshark), logs, and SIP traces.
* Protocol & Network Tuning: Proactively optimize network performance across critical protocols (SIP, RTP, TCP/IP, DNS, NAT, and firewall rules).
* Ecosystem Integration: Integrate, support, and ensure seamless interoperability between PBX systems, SBCs, and modern cloud VoIP environments.
* Quality Assurance: Define, monitor, and aggressively improve call quality metrics (MOS, jitter, latency) through proactive performance tuning.
* Feature Leadership: Lead the technical architecture and deployment of advanced voice applications, including real-time transcription, AMD/VMD (Answering Machine Detection), and next-generation AI-driven voice features.
* Escalation Point: Act as the final point of technical escalation for intricate VoIP incidents, effectively coordinating with internal teams and external vendors.
Requirements
⚙️ Technical Requirements:
Experience: 6+ years in software engineering, with a minimum of 4 years dedicated to VoIP/SIP development.
* Core Platforms: Deep, hands-on experience with core VoIP infrastructure components, specifically Freeswitch and Kamailio.
* Programming: Proficiency in scripting and development with Lua and Python. (Experience with Go or C/C++ is a significant plus).
* Networking Expertise: Expert-level command of network protocols and advanced debugging tools (Wireshark, SIPp, libpcap, Linux/BSD sockets).
* Cloud & WebRTC: Practical experience with WebRTC, configuring and managing TURN/STUN servers, and deploying solutions on major cloud platforms (AWS, Google Cloud, Cloudflare).
* Hardware Familiarity: Understanding of traditional telecom hardware, including GSM, E1 gateways, and serial-connected devices.
* Scalability: Proven track record in building highly scalable systems and implementing effective automated testing frameworks.
Desired Skills (Nice-to-Have):
Hands-on knowledge of call flow simulation tools and SIP testing frameworks.
* Experience designing and implementing RESTful APIs and scalable microservices.
* Familiarity with global network routing principles and optimization techniques.
* Experience with embedded systems or SIP hardware devices.
* Background in implementing AI/ML-driven features within VoIP solutions.
Synergy Beam Solutions is at the forefront of IT and cybersecurity, currently building a state-of-the-art telecommunications platform designed for high-performance call centers worldwide. We are seeking a Senior VoIP Engineer to be a foundational member of our engineering team, driving the architecture, scaling, and reliability of our core SIP-based SaaS platform.
Join us if you are passionate about tackling complex challenges and redefining communication and emergency systems globally.
Tasks
🎯 Your Impact:
You will lead the design and maintenance of mission-critical, real-time voice systems. Your focus will be on ensuring unparalleled reliability, scalability, and security while enhancing voice quality and observability across our global cloud infrastructure.
Key Responsibilities:
Architect & Optimize: Design, develop, and maintain high-performance SIP and RTP-based VoIP systems, serving as the subject matter expert on core VoIP protocols.
* Deep Troubleshooting: Utilize expert-level skills to diagnose and resolve complex routing, codec, and signaling issues using packet captures (Wireshark), logs, and SIP traces.
* Protocol & Network Tuning: Proactively optimize network performance across critical protocols (SIP, RTP, TCP/IP, DNS, NAT, and firewall rules).
* Ecosystem Integration: Integrate, support, and ensure seamless interoperability between PBX systems, SBCs, and modern cloud VoIP environments.
* Quality Assurance: Define, monitor, and aggressively improve call quality metrics (MOS, jitter, latency) through proactive performance tuning.
* Feature Leadership: Lead the technical architecture and deployment of advanced voice applications, including real-time transcription, AMD/VMD (Answering Machine Detection), and next-generation AI-driven voice features.
* Escalation Point: Act as the final point of technical escalation for intricate VoIP incidents, effectively coordinating with internal teams and external vendors.
Requirements
⚙️ Technical Requirements:
Experience: 6+ years in software engineering, with a minimum of 4 years dedicated to VoIP/SIP development.
* Core Platforms: Deep, hands-on experience with core VoIP infrastructure components, specifically Freeswitch and Kamailio.
* Programming: Proficiency in scripting and development with Lua and Python. (Experience with Go or C/C++ is a significant plus).
* Networking Expertise: Expert-level command of network protocols and advanced debugging tools (Wireshark, SIPp, libpcap, Linux/BSD sockets).
* Cloud & WebRTC: Practical experience with WebRTC, configuring and managing TURN/STUN servers, and deploying solutions on major cloud platforms (AWS, Google Cloud, Cloudflare).
* Hardware Familiarity: Understanding of traditional telecom hardware, including GSM, E1 gateways, and serial-connected devices.
* Scalability: Proven track record in building highly scalable systems and implementing effective automated testing frameworks.
Desired Skills (Nice-to-Have):
Hands-on knowledge of call flow simulation tools and SIP testing frameworks.
* Experience designing and implementing RESTful APIs and scalable microservices.
* Familiarity with global network routing principles and optimization techniques.
* Experience with embedded systems or SIP hardware devices.
* Background in implementing AI/ML-driven features within VoIP solutions.
Skills Required
- 6+ years in software engineering, with a minimum of 4 years dedicated to VoIP/SIP development
- Hands-on experience with Freeswitch and Kamailio
- Proficiency in Lua and Python scripting/development
- Expert-level networking and debugging: SIP, RTP, TCP/IP, DNS, NAT, firewall rules; deep troubleshooting using packet captures (Wireshark), SIP traces, and logs
- Experience with SIP testing and debugging tools such as SIPp, libpcap, and Linux/BSD sockets
- Practical experience with WebRTC, configuring/managing TURN/STUN servers, and deploying on AWS, Google Cloud, or Cloudflare
- Familiarity with telecom hardware: GSM, E1 gateways, and serial-connected devices
- Proven track record building highly scalable systems and implementing automated testing frameworks
- Experience with Go or C/C++
- Hands-on knowledge of call flow simulation tools and SIP testing frameworks
- Experience designing and implementing RESTful APIs and scalable microservices
- Familiarity with global network routing principles and optimization techniques
- Experience with embedded systems or SIP hardware devices
- Background in implementing AI/ML-driven features within VoIP solutions
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The Company
What We Do
Synergy Beam is an IT services company specializing in the implementation, integration, and maintenance of business information systems. They offer a broad range of solutions, from SMB business tools to enterprise-wide information systems. Their capabilities include enterprise cybersecurity and comprehensive cloud solutions—including public, private, and hybrid models—as well as professional guidance on the design and construction of data center facilities.
