Bharath Kumar K K
@BHARATH
Data Engineer at Cognizant Technology Solutions Corporation
Chennai, Tamil Nadu, India
Bharath Kumar K K is a results-driven Data Engineer with over two years of experience designing and optimizing large-scale data pipelines using Python, PySpark, and AWS. He has a proven track record in reducing processing time and cost, automating complex ETL workflows, and delivering reliable data solutions across healthcare and pharmaceutical domains. He is skilled at translating business requirements into scalable, high-performance data infrastructure that powers analytics and insights.
Experience
Data Engineer
Cognizant Technology Solutions Corporation
Engineered scalable PySpark pipelines on AWS EMR to process and transform 5TB+ of healthcare claims data, reducing ETL runtime by 83%. Automated data ingestion from AWS S3 and PostgreSQL into AWS OpenSearch. Optimized ElasticSearch indexing for 10M+ patient records, cutting query latency to under 10 seconds. Deployed and monitored workflows using AWS Step Functions and Lambda.
Support Analyst
Cognizant Technology Solutions Corporation
Collaborated in an agile environment to deliver analytics projects for HISCOX Claims Management System. Supported production deployments and validated data consistency. Conducted daily application and database checks using SQL Server queries and PowerShell scripts. Resolved user tickets by investigating issues using SQL queries and server log analysis.
Education
Sri Sai Ram Engineering College
Bachelor of Engineering
Electronics and Communication Engineering
Adharsh Vidyalaya Higher Secondary School
Higher Secondary Education
Licenses & Certifications
Azure Fundamentals – AZ-900
Microsoft
Data Analysis using Excel
Udemy