Job Purpose VoIP Infrastructure Design & Maintenance: oConfigure, deploy, and maintain FreeSWITCH and Kamailio-based systems. oDesign scalable and reliable VoIP architectures to support business needs. oImplement call routing, DID management, and trunk configurations. SIP & Call Routing: oDevelop and manage SIP-based call routing for internal and external communication. oTroubleshoot SIP signaling issues using tools like Wireshark or sngrep. oOptimize routing rules for least-cost routing (LCR) and high availability. Monitoring & Performance Optimization: oMonitor VoIP systems for performance, security, and uptime. oConduct capacity planning and optimize system resources. oImplement call quality monitoring tools (e.g., RTCP, QoS metrics). Collaboration & Support: oWork with cross-functional teams to integrate VoIP systems with CRM and other platforms. oProvide Level 2/3 support for VoIP-related issues. oTrain team members on VoIP best practices and system usage. Security & Compliance: oImplement VoIP security measures to prevent fraud and mitigate risks. oEnsure compliance with industry standards and regulations (e.g., GDPR, HIPAA). oConfigure firewalls and SBCs for secure SIP trunking. Database & Messaging Integration: oIntegrate VoIP systems with databases like MongoDB and PostgreSQL. oLeverage Redis for caching and RabbitMQ for messaging queues. oImplement efficient data storage and retrieval mechanisms to support VoIP services. Programming & Scripting: oDevelop custom VoIP features and modules using languages like Golang, Lua, Python, C, and C++. oAutomate repetitive tasks and processes through scripting. oIntegrate WebRTC solutions for real-time communication. Duties and Responsibilities VoIP Infrastructure Design & Maintenance Monitoring & Performance Optimization Programming & Scripting Required Qualifications and Experience VoIP Expertise: oStrong hands-on experience with FreeSWITCH and Kamailio. oIn-depth knowledge of SIP protocols, RTP, and VoIP troubleshooting. oFamiliarity with codecs like G.711, G.729, Opus, etc. Networking Proficiency: oSolid understanding of networking concepts such as NAT, RTP, and STUN/TURN. oExperience with firewall configurations and SBCs. Development Skills: oProficiency in programming languages like Golang, Lua, Python, C, and C++. oExperience with WebRTC for real-time communication. oFamiliarity with database systems like MongoDB and PostgreSQL. oExperience with Redis for caching and RabbitMQ for asynchronous messaging. Tools & Platforms: oFamiliarity with monitoring tools like Homer, Grafana, or Nagios. oHands-on experience with cloud platforms like AWS, Azure, or Google Cloud. oProficiency in containerization tools like Docker and orchestration with Kubernetes. Soft Skills: oStrong analytical and problem-solving skills. oExcellent communication and documentation abilities. oAbility to work collaboratively in a team environment Educational Qualifications B-tech IT or CS
