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Sourav Chatterjee

@souravchatterjee1

Data-focused System Engineer at Tata Consultancy Services who migrated BFSI data from legacy mainframes and builds Power BI dashboards.

India

Message

What I'm looking for

I'm looking for a role where data analysis is a core responsibility, where I can use SQL, Python, Power BI, and my domain experience to solve business problems and generate meaningful insights.

At Tata Consultancy Services, I worked with enterprise data for BFSI and Life Sciences clients, writing SQL and mongo scripts across MS SQL Server and MongoDB to extract, join, and validate datasets. I also migrated BFSI data from legacy mainframe sources, mapping fields and checking reconciliation and data integrity before production cutover.

I built Power BI dashboards and Python analyses, including a retail sales dashboard with a star-schema model and measures for revenue, margin, and year-over-year growth. I’m a Microsoft Certified: Power BI Data Analyst Associate and have also worked with Azure data pipelines.

Experience

Work history, roles, and key accomplishments

System Engineer

Tata Consultancy Services

Nov 2021 - Sep 2026 (4 years 10 months)

Data and application engineering for global BFSI and Life Sciences clients. Wrote SQL queries and scripts across MS SQL Server and MongoDB to extract, join and validate datasets, and migrated BFSI data from legacy mainframe sources into modernised systems.

SQL MS SQL Server MongoDB Python Power BI Excel Data Migration Source To Target Mapping Data Reconciliation Jira Agile Confluence DB2 IMS VSAM QSAM Root Cause Analysis

Backend Developer Intern

Alien Brains

Aug 2021 - Sep 2021 (1 month)

Built REST APIs and data endpoints for an online learning platform serving 500+ concurrent users, including request validation and data consistency checks.

REST APIs Data Endpoints Request Validation data consistency