data engineering , PostgreSQL, Data Cleansing, Informatica, Data Migration, Oracle, Talend, Python, AWS, SQL Server, SSIS, Data Quality, Gcp, DataStage, Azure, Etl, API-based Data Migration Integration, Troubleshooting, Data Validation Reconciliation, Strong SQL, Source-to-Target Data Mapping, Migration Scripts, Transformation Logic, Data Migration Support, Data Extraction Transformation Loading