Lead VOIP Engineer at Eltropy

<p><strong>Position</strong>: VOIP Lead Engineer(Remote)</p> <p>&nbsp;</p> <p><strong>About Eltropy</strong> (www.eltropy.com) - &nbsp; Eltropy is a rocket ship FinTech on a mission to disrupt the way people access financial services. Eltropy enables financial institutions to digitally engage in a secure and compliant way. Using our world-class digital communications platform, community financial institutions can improve operations, engagement and productivity. Community banks and Credit Unions use Eltropy to communicate with consumers via Text, Video, Secure Chat, co-browsing, screen sharing and chatbot technology — all integrated in a single platform bolstered by AI, skill-based routing and other contact center capabilities.</p> <p>Eltropy Values: No fear - tell the truth. Customers are our north star. Nothing is impossible.</p> <p><strong>Job Description:</strong></p> <p>We are seeking a Lead VoIP Engineer to design and build high-performance modules within our Voice platform. You’ll work on the core telephony stack involving signaling, media processing, NAT traversal, and RTP relaying. This is a hands-on execution role ideal for engineers who love building, debugging, and optimizing real-time communication systems.</p> <p><strong>Responsibilities:</strong></p> <ul> <li>Implement core voice capabilities using FreeSWITCH, Kamailio, and RTPEngine.</li> <li>Build and optimize SIP call routing logic, RTP media relays, failover mechanisms, and NAT traversal.</li> <li>Develop and manage configurations for scalability, codec negotiation, SIP trunk registration.</li> <li>Implement and test features like call recording, IVR, voicemail, DTMF detection.</li> <li>Monitor live traffic and participate in 24x7 on-call rotation for critical escalations.</li> <li>Collaborate with QA on stress/load testing and with Backend teams on provisioning APIs.</li> <li>Document design decisions, configurations, and troubleshooting runbooks.</li> <li>Troubleshoot and debug production issues, providing timely resolutions.</li> <li>Stay up-to-date with emerging technologies and industry trends, identifying opportunities for innovation and improvement.</li> <li>Collaborate with DevOps teams to ensure smooth deployment and operation of backend services in the AWS cloud environment.</li> </ul> <p><strong>Requirements:</strong></p> <ul> <li>8+ years of experience building and operating VoIP systems or CPaaS platforms.</li> <li>Solid expertise with SIP signaling, RTP, and media relay techniques.</li> <li>Strong hands-on with FreeSWITCH, Kamailio/OpenSIPs, RTPEngine.</li> <li>Hands-on experience with Session Border Controller (SBC), Media Servers and WebRTC.</li> <li>Experience in managing telephony infrastructure for uptime, latency, and call quality optimization.</li> <li>Strong systems programming and debugging skills in C/C++.</li> <li>Good scripting/debugging skills (Bash, Python, or Lua for FreeSWITCH modules).</li> <li>Proficiency with diagnostic tools (Homer , VOIPMonitoring, Wireshark, tcpdump etc).</li> <li>Experience working with geographically distributed infrastructure or HA deployments.</li> </ul> <p>&nbsp;</p> <p>If you are a talented and motivated Lead VoIP Engineer &nbsp;seeking a challenging opportunity to contribute to the success of our organization, we would love to hear from you. Please submit your resume and portfolio showcasing your relevant work.</p> <p>&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;</p>