Job Title

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 signalling, 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.Responsibilities:- Implement core voice capabilities using FreeSWITCH, Kamailio, and RTPEngine. - Build and optimize SIP call routing logic, RTP media relays, failover mechanisms, and NAT traversal. - Develop and manage configurations for scalability, codec negotiation, SIP trunk registration. - Implement and test features like call recording, IVR, voicemail, DTMF detection. - Monitor live traffic and participate in 24x7 on-call rotation for critical escalations. - Collaborate with QA on stress/load testing and with Backend teams on provisioning APIs. - Document design decisions, configurations, and troubleshooting runbooks. - Troubleshoot and debug production issues, providing timely resolutions. - Stay up-to-date with emerging technologies and industry trends, identifying opportunities for innovation and improvement. - Collaborate with DevOps teams to ensure smooth deployment and operation of backend services in the AWS cloud environment.Requirements:- 8+ years of experience building and operating VoIP systems or CPaaS platforms. - Solid expertise with SIP signaling, RTP, and media relay techniques. - Strong hands-on with FreeSWITCH, Kamailio/OpenSIPs, RTPEngine. - Hands-on experience with Session Border Controller (SBC), Media Servers and WebRTC. - Experience in managing telephony infrastructure for uptime, latency, and call quality optimization. - Strong systems programming and debugging skills in C/C++. - Good scripting/debugging skills (Bash, Python, or Lua for FreeSWITCH modules). - Proficiency with diagnostic tools (Homer , VOIPMonitoring, Wireshark, tcpdump etc). - Experience working with geographically distributed infrastructure or HA deployments.If you are a talented and motivated Lead VoIP Engineer 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.About Eltropy () - 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.Eltropy Values: No fear - tell the truth. Customers are our north star. Nothing is impossible.