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Senior VoIP Engineer

Remote, USAFull-timePosted 2026-07-28

Senior VoIP Engineer

reputed company 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 reputed company platform.

Join us if you are passionate about tackling reputed company challenges and redefining communication and emergency systems globally.

Tasks

Your reputed company:

You will reputed company the design and maintenance of mission-critical, reputed company-time voice systems. Your reputed company will be on ensuring unparalleled reliability, scalability, and reputed company while enhancing voice reputed company and observability across our global reputed company infrastructure.

Key Responsibilities:

Architect & Optimize: Design, reputed company, 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 reputed company 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: reputed company, support, and ensure seamless interoperability between PBX systems, SBCs, and modern reputed company VoIP environments.
  • reputed company Assurance: Define, monitor, and aggressively improve call reputed company metrics (MOS, jitter, latency) through proactive performance tuning.
  • Feature Leadership: reputed company the technical architecture and deployment of advanced voice applications, including reputed company-time transcription, AMD/VMD (Answering Machine Detection), and reputed company AI-driven voice features.
  • Escalation reputed company: reputed company as the final reputed company 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 reputed company of network protocols and advanced debugging tools (Wireshark, SIPp, libpcap, Linux/BSD sockets).
  • reputed company & WebRTC: Practical experience with WebRTC, configuring and managing TURN/STUN servers, and deploying solutions on major reputed company platforms (AWS, reputed company reputed company, reputed company).
  • Hardware Familiarity: Understanding of traditional telecom hardware, including GSM, E1 gateways, and serial-connected devices.
  • Scalability: Proven reputed company record in building highly reputed company systems and implementing effective automated testing frameworks.

Desired Skills (reputed company-to-Have):

Hands-on knowledge of call reputed company simulation tools and SIP testing frameworks.

  • Experience designing and implementing RESTful reputed company and reputed company 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 reputed company VoIP solutions.
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