Senior VoIP / SIP Developer

📋 Description Design, develop, and maintain intelligent call-routing solutions for production SIP/VoIP Integrate multiple telecom operators and optimize call routes according to cost, quality Implement and maintain SIP routing, prefix-based routing, failover mechanisms, and related Develop backend services and integrations using Python and/or Node.js/TypeScript. Work with Kamailio or OpenSIPS to build and maintain robust SIP infrastructure. Manage and optimize PostgreSQL databases supporting routing and telephony workflows. 🎯 Requirements Proven professional experience working with SIP/VoIP in production environments. Strong hands-on experience with Kamailio or OpenSIPS. Solid understanding of SIP, VoIP, call routing, prefix-based routing, and failover mechanisms. Professional backend development experience with Python and/or Node.js/TypeScript. Strong working knowledge of PostgreSQL. Experience with Linux, Docker, and cloud infrastructure. 🎁 Benefits 100% remote work arrangement. Full-time employment. Opportunity to work on an international technology project with real-world production telephony High level of technical ownership and autonomy. Exposure to advanced SIP/VoIP routing, carrier integrations, failover, and intelligent call-routing Opportunity to work across backend development, cloud infrastructure, Linux, Docker, and