Ugesh Ragavan
Data Engineer with 3+ years of hands-on experience at Cognizant specializing in the Microsoft Azure & Databricks ecosystem. Experienced in modernizing 35+ legacy ETL workflows into cloud-native PySpark, ADF, and Delta Lake Medallion pipelines, with an active enthusiasm for GenAI & LLM workflows.
Sci-Fi Underground Data Conduit
End-to-end data lineage visualization: Raw unstructured data travelling through automated ADF & Airflow conduits into ADLS Gen2 Bronze landing, refined by Databricks PySpark into Gold Medallion marts and reporting dashboards.
Extracting on-premise transactional SQL tables and semi-structured operational records. Managed with incremental watermark queries and Key Vault encryption for secure transit.
-- Incremental Source Extraction Query
SELECT
transaction_id, customer_id, order_date, total_amount, status, last_modified
FROM enterprise_db.sales_orders
WHERE last_modified >= '@{pipeline().parameters.window_start_time}'
AND last_modified < '@{pipeline().parameters.window_end_time}';
Skills Universe & Technology Matrix
Core technical competencies across the Azure cloud ecosystem, distributed Big Data engines, and GenAI exploration.
☁️ Cloud & Platforms (Azure)
⚡ Big Data & Programming
🤖 AI & Modern Developer Tools
Experience & Milestones
Key professional milestones at Cognizant, developer foundation, and computer science distinction.
Featured Projects & Repositories
Clean, real-world implementations spanning cloud data pipelines, Medallion Lakehouses, and productivity applications.
Desktop RIP Calendar
A minimalist desktop rip-off calendar application designed for clean day-by-day task planning, habit tracking, and distraction-free productivity.
End-to-End Azure DE Project
Complete ingest-transform-serve pipeline: raw data ingested into ADLS Gen2 via Azure Data Factory (ADF), transformed in Azure SQL / Databricks, and served to a reporting layer.
Dew Buddy
An interactive hydration and personal health companion app crafted with intuitive UI design, responsive animations, and seamless user interaction.
Azure Medallion Lakehouse Pipeline
Enterprise batch pipeline ingesting and transforming data on Azure Databricks with PySpark, structured into Bronze, Silver, and Gold Delta Lake tables for downstream analytics.
Interactive Console
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Let's Connect & Collaborate
Open for full-time Data Engineering opportunities, cloud migration consulting, and freelance pipeline development.
Let's talk data & pipelines.
Whether you need assistance migrating legacy ETL workflows to Azure Databricks, building automated ADF pipelines, or discussing modern data architectures, I'd love to connect.