Abhinav Dubey Email and Phone Number

1. Used SAGA pattern to implement distributed transactions2. Implemented CDC (change data capture) using Debezium , Kafka & streamed all change events to a consumer for formatting and storing the changes for audit purposes 3. Designed & implemented subscription service which keeps track of user plan duration and rotates the subscription-status without using any script/cron-job4. Did POC on Kafka and migrated existing messaging from RabbitMQ to Kafka , which reduced architecture cost5. Designed & implemented highly available and scalable webhook service , which solves the problem of webhook being lost when the targeted service is down6. Made Logstash data ingestion and data sync pipeline which syncs data from AWS RDS to ElasticSearch . Dockerized the Pipeline as well . Used ElasticSearch for auto-completion feature7. Made a custom Redis Library & published on NPM account for rate limiting , securing JWT , caching . This library was used across micro-services as a common caching library to avoid each service implementing its own caching logic8. Used Python scripting for data migration & extraction

1. As as backend developer , wrote code from scratch for backend using Node.js and Typescript 2. Moved monolith backend app to microservices architecture , using RabbitMq and HTTP/2 for asynchronous and synchronous communication b/w services3. Integrated ELK APM for API health and latency check . Used ElasticSearch for autocompletion feature4. Extensively worked with Container technology ie. DOCKER , for dockerising the backend-services and data-pipeline5. Used MongoDB for persistence and Integrated REDIS as caching layer to avoid repeated calls to database6. Integrated 3rd party APIs and CRM platforms used by the Product , like Razorpay , Google auth for signup and login . Also worked with Web-hooks

1. Worked on Angular8 on the frontend to revamp product dashboard2. Used Spring boot to make RESTful APIs , used by the dashboard3. Used MySql as peristence and Worked breifly with ElasticSearch4. Increased the code-coverage of Angular8 source code to 70% through unit tests , integrated sonarqube to visualize the code-coverage and other related metrices5. Used 3rd party node libraries like HighCharts , Lodash etc. which help in data visualisation using graphs & writing leaner code respectively