Ajay Otavkar

Data Engineer | Spark, SQL, Python & AWS Expert | Building Scalable Data Pipelines | Bridging the Gap between Data Science and Data Engineering

Role
Data Engineer Sr at Nielsen
Location
Mumbai, MH, IN
LinkedIn followers
500 followers
Information TechnologyView LinkedIn profile

About Ajay Otavkar

A results-driven Data Engineer with a proven track record of optimizing data pipelines…

Experience

  1. Data Engineer Sr

    Nielsen

    Jul 2022 — Present · IN

    Built End-to-End Data Workflows: Designed and implemented a comprehensive workflow using Spark, EMR, Glue, Redshift, and Airflow to streamline Connected TV (CTV) data processing and create a Co-Viewing Factor mechanism in collaboration with the Data Science team.• Optimized Data Architecture: Revamped a data pipeline architecture, saving over 200 hours of AWS EMR processing time monthly and reducing costs by 30%.• Reduced Data Latency: Engineered a comprehensive schema to integrate Video-on-Demand (VoD), e-commerce, and ads data, serving an AI engine and reducing latency by 30%.• Improved Business Insights: Created an interactive VoD dashboard on Metabase, providing commercial teams with real-time insights and eliminating their manual data reporting efforts.• Enhanced Operational Efficiency: Developed a Content Classification system using Python and MongoDB, which automated tasks and reduced manual interventions by the operations team by 40%.

Education

  • Mumbai University Mumbai

    Bachelor of Science (BSc)

    2009 — 2014

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Ajay Otavkar — Data Engineer Sr at Nielsen in Mumbai, MH, IN | Unifers