As an ETL Developer at Tata Consultancy Services, my responsibilities included:

Designing and developing efficient and reliable data extraction processes from various sources like databases, files, and APIs.
Transforming the extracted data to meet the business requirements and ensuring its quality through data profiling techniques.
Collaborating with cross-functional teams, including data analysts and business stakeholders, to understand the business requirements and identify data sources.
Developing and maintaining data mappings, data dictionaries, and metadata documentation.
Enhancing the ETL performance by implementing indexing, partitioning, and parallel processing techniques.
Monitoring and managing the ETL schedules and resolving any production issues that arose.
Receiving mentorship and training from senior developers in best practices and coding standards for ETL development.
Contributing to the development of data integration solutions and providing technical support to other teams as needed.

Vinothini Jayakumar