Nanthakumar G Email & Phone Number

Chennai, Tamil Nadu, India

• Developed an international calling app on both Android and iOS.• To gather SIP messages from tcpdump and show them in a web interface, a spring boot application was developed with Kafka.• For browser-based VoIP calling, a SIP application has been integrated with WebRTC and Kamailio.• Used the Google Cloud API to work with VXML for text-to-speech and speech-to-text conversion.• An API testing framework for billing applications was created and implemented.• Created video conferencing software and SDKs for Flutter and JavaScript.

Chennai Area, India

• Migrated the billing web server from jboss4 to Wildfly• Designed and implemented an admin and user panel with user-defined themes• Used Hazelcast and Infinispan to implement high availability in the billing application. Services can be distributed across servers.• Designed and implemented VoIP dialer backend REST API services using Jersey with an admin panel in AngularJS.• Added improvement in the development flow. Introduced SVN, Maven, and a private chat network with the Openfire chat server, and introduced LDAP-based centralised login for SVN and chat.

Chennai Area, India

• Discovered hacking attempts and made improvements to avoid• Written SQL functions for database migration.• Developed a mobile web application with JQuery Mobile• Developed a monitoring application with own interest for the product.

Chennai Area, India

• Accountable for Linux server product installation and deployment management, including upgrades and monitoring.• Provided product support through phone, email, and chat.• Assisted with client integration and POC.• Troubleshooting SIP signalling and billing issues.• Designed and implemented a password and note management system with PHP and MySQL.• Hands-on experience with Linux servers.• Got appreciation from clients for the product Knowledge and Problem solving skill.

Bachelor Of Technology (B.Tech.), Information Technology

Hsc, Computer Science

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