Designed and developed back-end infrastructure for pricing compliance project support across multiple countries using asynchronous systems capable of handling ~60 million events/day.

Designed and built the pricing module for various subscription products on udemy.com. collaborated with teams across time-zones for designing the interactions between different systems to launch the product.

Made micro-services more efficient and resilient by designing and implementing a comprehensive caching strategy.

Migration of the code from monolith to the micro-services along with the underlying data-stores without any downtime for any production features.

distributed high-scale micro-services, in-app rate limiters, distributed in-app caches for backend services

Led the team effort for a zero downtime migration of business critical API service involving database migration from a NoSQL database to MySQL database.

Built a real-time configurable shadowing tool which helps validate new versions of APIs against older versions for services using live production traffic complete with a splunk dashboard for real-time performance analysis across different APIs.

Re-Architected and redesigned existing Microservices to improve scale and performance.

Developed test automation framework enabling engineers to cut down on the time required for adding test coverage, mocking datastores.

Developed and deployed a number of performance enhancing features for an aggregator service handling around 450,000 requests per minute.

Technology - NodeJs, HapiJs, ExpressJs, Graphql, Javascript, AWS, Jenkins, Java, Spring boot.

Working as a full stack mobile developer,

• Building frontend and backend services for consumer apps with Nodejs, MongoDB, Android.

• Developed REST APIs for mobile clients using express framework.

• Developed user authentication and authorization modules.

• Developed database Schemas for the services with using Mongoose, MongoDB.

• Used AWS S3 for data storage and delivery.

• Used AWS SNS push notifications for delivering Notifications to mobile clients.

• Wrote unit test cases using mocha.

• Developed high quality android apps and deployed to google Playstore.

• Developed modularized networking and UI animation frameworks for maximum reuse within multiple apps.

• Developed caching module for enhancing the UI responsiveness and transitions.

• Integrated with Branch SDKs for enabling deep linking within apps.

• Integrated with crashlytics and mixpanel for analytics.

Development technologies and Frameworks:

NodeJs, MongoDB, Android, AWS - (S3, SNS, Lambda), Firebase, Parse, Crashlytics, Mixpanel.

IDE:

Intellij, Git, Webstorm, Android studio

Projects: Single-Signon, Opera Android Multimedia Framework development, Social Share Apps for Android SMART TV

• Wrote the low-level design document for the multimedia framework by interacting with Opera team and understanding their interfaces.

• Developed a state machine for mediaplayer and the interfacing with Opera Media Player.

• Designed and developed an architecture for multiple mediaplayer lifecycle management.

• Used Android NDK to implement the opera media interfaces and used JNI to communicate with

application framework.

• Designed and developed a Single Sign-on service for smart TV using AIDL interfaces.

• Integrated both facebook and twitter share features for android smart TVs using respective

OAuth services to enabling context based user sharing from smart TV.

• Used the TDD approach along with sprint methodology for effective and faster development and

deployment.