Worked on Java-based framework Spring Boot. Worked on Search Service: A capability that is used by Fraud Analysts to find transactions in last 1 year from Elastic Search. Provided operation support for issues reported by Fraud Analysts on different APIs of Search Service. Migrated and optimized logging of the service (from log4j to log4j2).Worked on Mongo Data Exporter: It is a capability that is used to fill data on Elastic Search from Mongo. Migrated the tool to KUMO as part of migration of Risk Stack from AWS to KUMO. Supported Analysts for doing backfiling on Elastic Search based on the requirements.Provided Operation Support to different teams across Expedia Group for successfully migrating their services that interact with our services on AWS cloud. It involved understanding their interaction with our services, designing approaches for migration, incorporating changes at our side and validating end to end flow.