SDE at FBA team- Launched Lost In Transit Reimbursement policy in auto RMS system, added Weblab to control logic- Designed and developed tools to handle Fulfillment By Amazon Auto Reimbursement workflows on Apollo env using JDK, SQL, Linux, Amazon S3, Dynamodb, Google Guice.etc- Implemented Customer Return data pipeline to inject data to CRD backend using AWS Glue, PySpark, Jupiter Notebook, Python etc.- Developed and Implemented the Dynamic Routing feature to transfer ETL jobs and machine learning model prediction results from S3 to DynamoDb by using AWS Glue and Lambda, created DynamoDb DAO layers to retrieve fraudulent seller and dynamically cut investigation tickets based on downstream team's capacity using AWS native services, TypeScript, AWS CDK, SDK, CloudFormation, CloudWatch, etc.

SDE at Kindle Library team-Designed and Implemented code coverage validator for Kindle Library

-Full stack experience on Shipping Console: designed and developed return address feature from enforcing user setting up return address, to using the return address for shipment planning, optimization, and cost estimation. -Backend experience on Carrier Recommendations Service: designed and developed carrier recommendations RESTful service, which calculates recommended carriers based on package information, shipping address and return address.