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Sharmila Jagankumar

@sharmilajagankumar

Data Engineer at Cognizant who modernized 30+ ETL pipelines and automated migration of 1,000+ legacy scripts.

At Cognizant Technology Solutions, I contributed to modernizing 30+ ETL pipelines by migrating legacy Shell, HiveQL, and SQL workloads to a metadata-driven PySpark framework. I also developed data engineering solutions for SCD Type 2 transformations, SFTP integrations, and Oracle export pipelines.

I automated migration of 1,000+ legacy scripts with a Generative AI agent, eliminating an estimated 9,500+ hours of manual effort and delivering $63K in FTE cost savings. I also contributed to workflow orchestration and pipeline runtime reductions through cluster allocation optimization and Databricks Job Clusters.

In personal projects, I built an Apache Airflow pipeline that stores trending YouTube data in PostgreSQL and a Streamlit financial assistant using the Agno framework. I hold Databricks Certified Data Engineer Associate and Databricks Certified Generative AI Engineer Associate certifications.

Experience

Work history, roles, and key accomplishments

Current

Programmer Analyst

Current

Cognizant Technology Solutions

Jul 2026 - Present (4 months)

Working as a Programmer Analyst in Azure Data Engineering, contributing to ETL modernization and migration projects.

Azure Databricks Azure Data Factory PySpark Spark SQL Delta Lake ADLS Gen2 Workflow Management Python Hive Shell Azure AD Unity Catalog

Databricks Genie

Programmer Analyst Trainee

Cognizant Technology Solutions

Jul 2025 - Jul 2026 (1 year)

Migrated 30+ ETL pipelines from legacy Shell, HiveQL, and SQL workloads to a metadata-driven PySpark framework. Contributed to a 60-80% reduction in pipeline runtime through cluster allocation optimization and adoption of Databricks Job Clusters. Automated migration of 1,000+ legacy scripts using a Generative AI agent, eliminating an estimated 9,500+ hours of manual effort and delivering $63K in F

Azure Databricks Azure Data Factory PySpark Spark SQL Delta Lake ADLS Gen2 Workflow Management Python Hive Shell Azure AD Unity Catalog

Databricks Genie

Intern - Big Data Engineering

Cognizant Technology Solutions

Dec 2024 - Mar 2025 (3 months)

Developed an ETL pipeline for vendor management using SQL Developer and Informatica, and replicated the data workflows using HDFS and Hive. Led a 6-member team in delivering a Big Data project, coordinating implementation across Python, Shell Scripting, Hadoop, Pig, HBase, Sqoop, and PySpark.

Python Linux SQL Developer Informatica Hive Pig HBase Sqoop PySpark

Data Lead - Core Member

Google Developer Student's Clubs (GDSC)

Jan 2023 - Jan 2024 (1 year)

Contributed to the club's mission by leading 4+ engaging technical sessions and fostering a collaborative learning environment. Conducted sessions for 600+ students and achieved tier-1 and tier-2 in Google Cloud Jam and Gen AI study Jam events.

Education

Degrees, certifications, and relevant coursework

Dr. MGR Educational & Research Institute

Bachelor of Technology, Computer Science Engineering – Data Science and Artificial Intelligence

2021 - 2025

Grade: 9.18/10

Pursued a Bachelor of Technology in Computer Science Engineering with a specialization in Data Science and Artificial Intelligence, achieving a GPA of 9.18/10.