Nagaraj Hallimane
Bentonville,AR
Summary
Results-driven data professional with over 12 years of expertise in data engineering, product testing, and data quality analytics, consistently delivering impactful business solutions.
Demonstrated success in designing and executing robust data pipelines and tests to optimize data applications and enhance product performance while providing actionable insights that drive strategic decision-making.
Proficient in SQL, Java, Python, and Scala, leveraging technical skills to solve complex challenges and improve operational efficiency.
Overview
13
13
years of professional experience
1
1
Certification
Work History
Senior Data Engineer /Software Quality Engineer
Walmart Inc.
08.2018 - Current
- Built and maintained ETL data pipelines in GCP , using spark and scala.
- Developed SQL scripts and automated data validation frameworks for ensuring 100% data accuracy in reporting layer.
- Analyzed data for pipelines feasibility multiple pipelines and experienced in different data sources like RDBMS , Streaming Cloud(Kafka) and BigQuery.
- Supported root-cause analysis on data-related system problems to recommend or execute corrective action.
- Collaborated with stakeholders to identify business needs and data sources.
- Developed scripts and queries to extract and analyze data from different sources.
- Designed and developed data pipelines to acquire, clean and process data.
- Provided technical support for troubleshooting analytics and reporting issues.
- Mentored new team members to successfully onboard to the projects on techo functional skills on framework.
- Implemented automated systems on quality control processes to improve data quality and efficiency of engineering processes.
Lead Data Quality Engineer
Wipro Technologies
12.2012 - 07.2018
- Delivered multiple applications quality deliverables by leading team of 5-8 members on in-store and online retail applications.
- Excellent in data analytics and worked for Enterprise Data Warehouse applications of leading retailer like Walmart and Target.
- Collaborated with cross-functional teams to develop and implement process changes.
- Created reusable SQL-based test validation scripts and regression scripts to end to end applications.
- Mentored quality engineering team for multiple domains and improved data validation processes
- Supported experimentation and test design for Ecommerce and Enterprise Data Warehouse systems
- Used critical thinking to break down problems, evaluate solutions and make decisions.
- Applied effective time management techniques to meet tight deadlines.
- Participated in team projects, demonstrating an ability to work collaboratively and effectively.
- Contributed to root cause analysis to determine core reason for failures and errors.
Education
Master of Science - Software Engineering
Birla Institute Of Technology
Pilani 11.2012
Skills
- Languages/Tools: SQL, Python, Scala, Spark, Tableau, Excel, Power BI
- Platforms: Google Cloud, BigQuery, Hive, RDBMS, Kafka, Azure Cosmos(SQL and NoSQL DBs)
- Schedulers: Automic , Airflow , Control-M
- ETL Pipelines and Data Processing Tools
- Big Data Technologies
- Business Intelligence and Reporting
- Data Warehousing and Data Management Systems
- Product and Data Analytics
Certification
- Recognized with Excellence Award in Walmart Data Ventures Team.
- Awarded with 'Launch Award' in Walmart Store Pricing team for adapting pricing system in cloud platform.
- Received Org level Bronze Award from Healthcare Client in Wipro Technologies.
Timeline
Senior Data Engineer /Software Quality Engineer
Walmart Inc.
08.2018 - Current
Lead Data Quality Engineer
Wipro Technologies
12.2012 - 07.2018
Master of Science - Software Engineering
Birla Institute Of Technology