Rajesh Chatterjee Email and Phone Number

- Working for a reputed multi national pharmaceutical client.- Working in Messaging Based Integrations in between multiple CRM systems using MuleSoft, AWS Lambda, AWS SQS.- Development of AWS Lambda functions (using NodeJS) to implement integration transformation logic.- Development of ETL data pipelines using Apache Airflow with supporting libraries like Pandas, boto3, json, datetime etc.- Executing NodeJS code (both Synchronous and Asynchronous) in python runtime environments using libraries like "subprocess" and "nodejs-pypi".- Packaging of custom python libraries to be used in Apache Airflow data pipeline.- Managing Apache Airflow runtime environment in AWS MWAA.

- Worked for a reputed multi national pharmaceutical client.- Development of Talend ETL jobs in Talend Real Time Big Data Studio, Talend Open Studio.- Strong hands-on experience in working with Talend components like Joblets, tSetGlobalVar, tDBInput, tDBOutput, tHashInput, tHashOutput, tMap, tHMap, tREST, tExtractJSONFields etc.- Involved in extracting data from various data sources like RDBMS (Postgres, Oracle), S3, SFTP, REST APIs, Salesforce, Flat files etc.- Applied various transformations logic to integrate multiple systems as per the business requirements.- Efficient utilization of Context Variables to make Talend jobs dynamic as per the configurations environments.- Loading data to target systems (mostly in Postgres RDBMS).- Monitoring, Troubleshooting and Performance analysis of Talend ETL jobs.- Analysis of data synchronization post integrating multiple systems.- Migration of Talend jobs to higher versions.