👋 Hi, I'm Balakumar

💼 Data Engineer | Spark & Databricks Specialist | Cloud Data Pipelines

Welcome to my GitHub! I love building scalable, optimized data pipelines that power analytics and business decisions.

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🚀 Tech Stack & Expertise

🔹 Big Data & Distributed Processing

• Apache Spark (PySpark, Spark SQL)
• Databricks (Workflows, Delta Lake, Z-Ordering, Optimizations)
• SAP HANA Data Extraction & Performance Tuning
• Parallelism, Shuffle Optimization, Cluster Tuning

🔹 Data Engineering & ETL

• Complex SQL Transformations & CTE Pipelines
• Metadata-driven ETL Frameworks
• Snapshot Validation, Partition Management
• Incremental Loads & Rolling-window Logic
• Job Monitoring Dashboards

🔹 Cloud & Storage

• AWS Glue ETL
• Delta Lake
• Lakehouse Architectures
• Snowflake (Community Edition)

🔹 Tools & Languages

• Python (ETL frameworks, automation)
• SQL (Analytical queries, joins optimization)
• REST APIs (Databricks Jobs API)

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📊 What I Work On

• Optimizing large-scale Spark SQL jobs
• Improving slow ETL pipelines
• Building data quality & monitoring frameworks
• Snapshot comparison systems for B2B analytics
• Designing scalable metadata-based ETL workflows

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📚 Currently Learning

• Kubernetes (K8s)
• Docker
• GitHub Actions
• Spark on Kubernetes (future goal)

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🛠️ Projects You'll Find Here

• Automated Snapshot Validation System
• Databricks Job Monitoring Dashboard
• Metadata-driven PySpark ETL Framework
• Delta Lake Optimization Scripts

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📫 Contact

If you'd like to collaborate or discuss data engineering ideas — feel free to reach out on my linkedin profile Bala !

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⭐ Thanks for visiting my profile!