Open to opportunities

krishna sai

@krishnasai4

Message

I build cloud-native ETL pipelines and modernize enterprise data platforms.

India

Message

What I'm looking for

I’m looking to build reliable, governed cloud data platforms, modernize legacy ETL and warehouse systems, and improve data pipeline performance for business users.

At Cognizant, I migrate legacy Informatica and Teradata workloads into cloud-native data platforms for insurance, reinsurance, and enterprise data teams. I’ve delivered Azure Databricks, AWS Glue, S3, EMR, and Apache Iceberg solutions across ingestion, transformation, migration, and production support.

I migrated 150+ Informatica workflows to Azure Databricks and improved ETL performance and reliability by 25% through Spark SQL, join, and partitioning optimizations. I also built Python validation automation that reduced manual checks by 40%, implemented Unity Catalog controls across 50+ tables, and maintained 99.9% data availability.

I’m certified in Databricks, Azure Data Engineering, and AWS Data Analytics, with a focus on reliable, governed pipelines that deliver usable business data.

Experience

Work history, roles, and key accomplishments

Current

Associate – Data Engineer

Current

Cognizant Technology Solutions

Apr 2024 - Present (2 years 4 months)

Migrated 150+ legacy Informatica ETL workflows to Azure Databricks using PySpark and Spark SQL for insurance and reinsurance data. Designed and tested ETL/ELT pipelines across 3+ source systems, implemented Delta Lake, and optimized Spark SQL queries to improve ETL performance by 25%.