Instructor

Keshaw Tiwari is a highly skilled Data Quality Engineer and ETL Testing professional with 7+ years of industry experience in Telecom, E-commerce, Analytics, and Cloud Data Warehouse projects. He has extensive hands-on expertise in ETL/ELT Testing, Snowflake Validation, dbt Transformation Testing, Data Quality Engineering, and Data Pipeline Automation using Python. Throughout his career, he has worked with leading organizations such as T-Systems, LTI, and Datasembly, contributing to large-scale enterprise data platforms and cloud migration projects.

He has strong practical experience in validating complex ELT pipelines, testing dbt models, performing incremental & CDC validation, and ensuring data accuracy across staging, transformation, and reporting layers. His technical expertise includes Snowflake, Advanced SQL, dbt, Great Expectations, Python, Airflow, Tableau, and Data Warehouse Testing. Keshaw has also worked on real-time telecom billing systems, enterprise BI dashboards, and large-scale cloud-based analytics platforms handling millions of records and mission-critical business data.

Apart from his industry experience, Keshaw is deeply passionate about teaching and mentoring aspiring professionals in the field of ETL Testing and Data Quality Engineering. He has trained 200+ students through online, classroom, and corporate training programs, helping learners gain strong practical knowledge with real-time project exposure. He has also delivered corporate trainings for working professionals on ETL Testing, Snowflake, SQL, dbt, and Data Validation concepts. His teaching style focuses on simplifying complex topics with real-world examples, hands-on exercises, interview preparation, and project-based learning to make students industry-ready.