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.

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

Hsc, Computer Science

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