Data Engineer | Python | PySpark | SQL | AWS | Snowflake | Redshift | Airflow | ETL | Data Warehousing
Coimbatore, Tamil Nadu, India
Bachelor of Science - BS, Computer Science
Bharathiar University
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Download Tal BossData Engineer | Python | PySpark | SQL | AWS | Snowflake | Redshift | Airflow | ETL | Data Warehousing
I build data systems that businesses rely on — pipelines that don't break, lakes that scale, and warehouses that answer questions fast. Over the past 3+ years at Cognizant, I've worked end-to-end across the AWS data stack — designing ETL/ELT pipelines from scratch, architecting Medallion data lakes, optimizing Redshift performance, and automating workflows that used to require constant manual intervention. A few things I'm proud of: Maintained 99.5% pipeline uptime across production environments by building robust Airflow monitoring, retry logic, and SLA controls Cut data processing time by 55% through full ETL automation on high-volume sales data across regional markets Reduced Redshift query time by 20% (45s → 36s) using distribution key tuning, sort key optimization, and query rewriting Improved churn model accuracy to 87% by engineering clean, leakage-free training datasets from 10M+ daily records My progression has mirrored the complexity of what I've built — starting with execution-focused pipeline work and growing into full data lake architecture ownership, including Medallion (Bronze/Silver/Gold) design, Glue Crawler configuration, and WLM tuning in Redshift. I'm passionate about data reliability — making sure the numbers that reach analysts, dashboards, and ML models are clean, timely, and trustworthy. Core stack: Python · PySpark · SQL · AWS Glue · Amazon S3 · Amazon Redshift · Apache Airflow · AWS Lambda · Delta Lake Open to Senior Data Engineer and Data Platform Engineer roles where I can own architecture, not just maintain it. 📩 akkrish000@gmail.com | 📞 +91 73390 33973
Bengaluru
Data Engineer at Cognizant Technology Solutions, Jan 2023 - Apr 2026 · 3 yrs 4 mos, Coimbatore, Tamil Nadu, India
Bachelor of Science - BS, Computer Science, Bharathiar University