At Infosys Limited, I built and maintained production HDFS pipelines across Bronze, Silver, and Gold Medallion layers, standardizing ingestion, transformation, and aggregation across the enterprise Data Lake.
On the GST - MIS Migration & Data Engineering project, I reduced ETL execution time by about 40% by consolidating legacy MySQL stored-procedure jobs into an optimized PySpark pipeline on Hive and the Data Lake.
I also built Power BI dashboards while migrating business logic from legacy JasperSoft reports, and used SQL and HiveQL to deliver dashboard-ready datasets for enterprise stakeholders.
Earlier, on the Apple Inc. - Production/Application Analyst project, I resolved recurring data integration and performance issues and automated SQL checks with Unix shell scripts. I supported high-priority incident response while maintaining 98%+ SLA compliance.
