Rahul Reddy Chappidi Venkata

Data Scientist

Machine Learning Research Intern

Vedantu

Jul 2022 - Dec 2022

Key Achievements

  • Optimized SQL queries and built data migration modules for improved performance
  • Created ETL pipelines for video recommender systems serving 5M+ users
  • Ran A/B tests and regression analysis to measure feature impact
  • Designed Tableau dashboards for business intelligence and user analytics


Problem Statement

  • Platform needed personalized video recommendations to improve student engagement
  • Existing data pipelines were inefficient and required optimization
  • Business teams needed real-time analytics for data-driven decision making
  • User engagement metrics needed systematic tracking and analysis


Technical Implementation

  • Optimized complex SQL queries reducing execution time by 40%
  • Built robust data migration modules for seamless data transfers
  • Developed scalable ETL pipelines for processing video interaction data
  • Implemented machine learning models for personalized content recommendation
  • Designed and executed A/B testing frameworks for feature validation
  • Created comprehensive Tableau dashboards for business stakeholders
  • Set up automated monitoring and alerting systems for data quality


Impact & Results

  • Improved video recommendation accuracy leading to increased student engagement
  • Reduced data processing time through optimized pipelines and queries
  • Enabled data-driven product decisions through comprehensive analytics
  • Supported 5M+ users with reliable and scalable data infrastructure
  • Provided actionable insights to product and business teams


Technologies Used

Python SQL Machine Learning ETL Pipelines Tableau A/B Testing Regression Analysis