Abhishek Sharma

Experience

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  ISparrow HR Solutions (Unit of iSparrow Services Pvt Ltd)

  Jan 2019 - Nov 2021

  Data Analyst

  ● Built end-to-end ETL pipelines (SQL, DBT, Airflow) for multi-source data integration, enhancing reporting efficiency by 30%● Developed customer segmentation models (K-Means Clustering), increasing marketing campaign efficiency by 15%● Conducted data transformation & quality assurance to ensure 99.8% data accuracy for financial reports● Spearheaded an AWS migration project, transferring 50TB+ of healthcare & retail data to S3, Redshift, cutting storage costs by 22%● Designed real-time analytics solutions using Kafka & Spark, improving fraud detection and operational monitoring Show less

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  CVS Pharmacy

  Jan 2024 - now

  Data Analyst

  ● Architected scalable data pipelines using Airflow, SQL, and AWS Lambda, reducing data processing time by 40%● Designed real-time dashboards using PowerBI to track patient health metrics and operational KPIs, increasing data visibility by 35%● Developed a fraud detection model using Python (Scikit-Learn) & Snowflake, reducing fraudulent claims by 22%,saving $2M annually● Implemented role-based data security (RBAC) in Snowflake to ensure HIPAA compliance● Led cloud migration project for 50TB+ of healthcare data, transitioning from on-prem databases to AWS Redshift, improving query performance by 3x Show less