Job Title Telecom Development Engineer - FreeSWITCH Kazoo Department Engineering VoIP Platform Location On-Site Delhi Employment Type Full-time Experience Level 5 years in VoIP Telecom Development Role Summary We are seeking a highly skilled Telecom Development Engineer with hands-on experience in FreeSWITCH and Kazoo alongside strong programming skills in Go Python and familiarity with Cloud Databases RabbitMQ REST APIs Ansible Prometheus Grafana and Git The ideal candidate will be responsible for developing and maintaining VoIP applications and modules in FreeSWITCH and integrating them into the Kazoo multi-tenant telephony platform using Monster UI Key Responsibilities Design and Develop Custom FreeSWITCH Modules Create scalable high-performance modules and dialplans in FreeSWITCH using Lua Go or C Work with ESL Event Socket Library and mod xml curl to extend call handling logic Kazoo Integration and Configuration Deploy FreeSWITCH modules and services into Kazoo via Monster UI and Kazoo APIs Customize and extend Kazoo applications using Kazoo s AMQP and REST API interfaces Application Development Build automation tools and microservices using Go and Python to manage telecom workflows Develop backend services that interface with SIP RTP and Kazoo FreeSWITCH subsystems Infrastructure Automation Monitoring Automate deployments with Ansible Monitor system health using Prometheus and Grafana Implement scalable logging alerting and system health-checks DevOps Source Control Use Git for version control and CI CD workflows Collaborate on code reviews and participate in agile sprints API Integration Consume and expose RESTful APIs to support user interface functionality and backend logic Integrate with third-party systems and internal services using RabbitMQ message queues Troubleshooting and Optimization Investigate and resolve SIP signaling issues one-way audio NAT traversal and codec mismatches Optimize RTP stream handling failover load balancing and call quality Required Skills Qualifications VoIP Expertise Deep understanding of SIP RTP SDP NAT and SIP tracing tools e g sngrep Wireshark Experience building and maintaining VoIP platforms using FreeSWITCH and Kazoo Programming Languages Proficiency in Go Golang and Python Familiarity with Lua scripting and C for FreeSWITCH module development Messaging Databases Experience with RabbitMQ AMQP and Cloud DBs like CouchDB Couchbase used by Kazoo Infrastructure Tools Strong skills in Ansible Git and CI CD pipelines Proficient in Prometheus and Grafana for system observability Web API Skills Proficient in designing and consuming RESTful APIs Experience with Kazoo REST APIs and Monster UI for provisioning and monitoring Preferred Qualifications Experience working in multi-tenant VoIP platforms Familiarity with WebRTC STUN TURN and SBCs Session Border Controllers Previous contributions to open-source VoIP projects Knowledge of Docker or containerization for telecom applications Key Attributes Strong problem-solving skills and ability to work independently Excellent communication and documentation skills Passion for scalable systems performance optimization and clean architecture Collaborative mindset and proactive in a team environment Job Types Full-time Permanent Pay 311 015 97 - 900 000 00 per year Perks Cell phone reimbursement Internet reimbursement Paid time off Work Location In person Expected Start Date 11 08 2025

📌 Senior Development Engineer (New Delhi)
🏢 Royztech International FZ
📍 New Delhi