SAI KUMAR GONUGUNTA
Summary
Results-driven Data Engineer with 3.3+ years of experience in building scalable ETL pipelines, real-time data flows, and analytics-ready datasets using Azure, PySpark, and Delta Lake. Proven expertise in delivering high-performance data solutions that drive product insights and business decisions.
Overview
3
3
years of professional experience
1
1
Certification
Work History
Data Engineer
Tata Consultancy Services
12.2021 - Current
- Designed and developed scalable ETL pipelines using PySpark in Databricks, improving data availability for product analytics by 30%
- Migrated on-premises data warehouse to Azure with Azure Data Factory and Databricks, achieving 99.9% uptime and enhancing data processing speed by 25%
- Optimized SQL-based transformations in Databricks and Azure Synapse, reducing query execution time by 30% and accelerating data retrieval for key business dashboards
- Implemented an orchestration framework in Apache Airflow, automating end-to-end pipeline execution and reducing manual intervention by 40%
- Engineered a proactive data framework that detected and resolved pipeline failures, reducing data downtime by 40%
- Integrated multiple data sources (databases, APIs, event streams) into Azure, creating a unified data platform for business intelligence, reporting, and predictive analytics
- Enhanced data storage efficiency using Delta Lake in Databricks, ensuring ACID transactions, data versioning, and optimized query performance
- Developed real-time monitoring dashboards in Azure, enabling self-service analytics and reducing incident resolution time by 40%
- Collaborated with engineering teams to design scalable data models that improved query efficiency and supported product feature development
Education
Bachelor of Technology - Electronics and Communication Engineering
QIS Institute of Technology (2017-2021)
OngoleSkills
- ETL & Data Transformation: PySpark, SQL, Azure Data Factory, Databricks
- Cloud & Storage: Azure Data Lake Storage Gen2, Azure Synapse, Blob Storage, Key Vault
- Data Architecture: Delta Lake, Medallion Architecture, Lakehouse Design
- DevOps & CI/CD: Git, Azure DevOps, CI/CD Pipeline Integration
- Orchestration & Monitoring: Apache Airflow, ADF Triggers, Azure Monitor
- Analytics & BI: Power BI
- Data Quality & Governance: Data Validation, Error Handling, Unity Catalog
- Data Modeling: Dimensional Modeling, Star & Snowflake Schema Design
Certification
- DP-203 – Data Engineering on Microsoft Azure
- AZ-900 – Microsoft Azure Fundamentals
- AI-900 – Microsoft Azure AI Fundamentals
- PL-300 – Microsoft Power BI Data Analyst
Awards Recognition
- Star of the Month – Recognized for driving improvements in data pipeline efficiency and reliability
- Best Performance Award – Acknowledged for automating ETL workflows and optimizing performance in Databricks
- Beyond Excellence Award – Appreciated for implementing practical Azure + PySpark solutions that improved data delivery and reduced processing time
Timeline
Data Engineer
Tata Consultancy Services
12.2021 - Current
Bachelor of Technology - Electronics and Communication Engineering
QIS Institute of Technology (2017-2021)
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