Building the best Voice AI platform.

• Contributed to the design and development of Twilio’s Voice Conversational AI capabilities.

• Contributed to building and scaling a high-performance service responsible for orchestrating the ConversationalAI flow between Twilio’s internal TTS/ASR/STT endpoints, customer's servers and Twilio’s media engine.

• Building a solution for customers to own and manage their Mobile Push Notification bindings instead of relying on Twilio managed bindings. This feature will provide flexibility to customers using Twilio Voice SDKs who rely on APN/FCM VoIP Push Notifications for call management.

• Built an in-band channel to transfer and receive custom events/messages to and from Twilio Voice Mobile and JS SDKs.

• Built the integration of Voice Channel into Twilio Frontline(TM) product. Extended persistent storage to work seamlessly with Mysql and in-house datastore(GraphQL+Cockroach-backed).

• Build, maintain, deploy and continuously improve the voice core of Twilio which includes the products Twilio Sip Trunking, Twilio Clients(WebRTC and Mobile) and the Twilio Programmable Voice around the globe.

• Lead multiple projects with contributions at various levels, from architectural decisions to implementation, deployment and bug fixes.

• Built the Twilio Sip Trunking product from scratch, which comprises of various micro services including Sip Applications and REST services that perform various functions ranging from core routing to billing.

• Built a REST service to authenticate JWT tokens used by Twilio Voice SDKs.

• Built a SIP Application called ‘Play’ which aims at guiding new Twilio users to self verify their newly setup infrastructure.

• Developed a SIP application using Mobicents Sip Servlets(JSR-289), which tests & monitors Twilio’s SIP cluster end-to-end, round the clock.

• Lead a small team to implement interworking between Twilio's Programmable Voice core and VoIP E911 termination provider.

• Building micro services in the AWS cloud.

• Develop and maintain scalable SIP applications in Java.

• Develop Dropwizard(Java) based distributed and scalable REST services.

• Work with third party persistent storage as Amazon DynamoDB.

• Consume and publish to Kafka Topics.

• Develop a JSR289 based Sip Application using Java and Python(as test scripting) for End-to-End Testing of Twilio's SIP/Telephony core.

• Write CHEF scripts for provisioning and managing AWS instances.

• Write Unit Tests in SipUnit/JUnit.

Responsibilities include:

1. Create in automation framework(Python 2.x) for S1AP & GTPv2 LTE protocol modules of Movik solution.

2. Develop protocol conformance framework for LTE specifications for Movik solution.

3. Provide UMTS & LTE protocols consultation to engineering groups in Movik.

1. Provide UMTS(RRC-RLC-MAC/NBAP/RANAP) protocol consultaion to Sycamore Networks.

2. Develop IXIA based scripts for UMTS protocol conformance of Sycamore Networks solution.

3. Design scenario based tailor-made custom scripts for Sycamore IQStream control plane. eg: Common Transport Channel Setup procedure.

4. Design End-End call-flows from specs & develop test scripts involving scenarios like HO with ASU, Cell_Update, PDP Context Activation, CTCH Setup, PDP Context Modification, Sec-PDP, RadioBearer Setup/Reconfig, RL Sync, RAB Assignment procedures etc. for system Testing of Sycamore Solution.

5. L2/L3 switching with Netgear & Cisco switches.