Sai Krishna

About Sai Krishna

Open to Work I’m a Senior Data Analyst / Data Engineer with 4+ years of experience…

Experience

1. Senior Data Engineer

   McKesson

   Jul 2024 — Present · Georgetown, TX, US

   Built and optimized real-time and batch data pipelines using Databricks, Apache Spark, and Azure Data Factory, enabling analytics on millions of healthcare transactions.• Engineered robust ETL workflows for ingesting structured and semi-structured data (JSON, CSV, Parquet) from APIs and third-party systems, accelerating data ingestion by 40%.• Developed scalable pipelines using SQL and PySpark for data transformation, normalization, and enrichment of clinical and operational datasets.• Designed secure and scalable architecture using Azure Data Lake Gen2, supporting both batch processing and streaming analytics.• Orchestrated event-driven ingestion workflows via Kafka and Azure Event Hubs, powering real-time alerting and reporting.• Implemented data quality validation using Great Expectations, reducing data inconsistencies in production pipelines by 35%.• Modeled Star and Snowflake schemas within Snowflake, optimizing BI query performance and enabling enterprise-level data analysis.• Delivered interactive executive dashboards in Power BI, enabling real-time visibility into inventory, logistics, and patient metrics.• Ensured compliance with HIPAA and GDPR by applying encryption, RBAC, and row-level security across all Azure-hosted datasets.• Collaborated with data science and analytics teams to provide feature-ready datasets, cutting manual data preparation time by 30%.

Education

• Wilmington University

  Master's degree, Information Technology