Aman Sagar

About Aman Sagar

Results-driven Big Data Developer with 3+ years of experience in designing, developing, and optimizing scalable data pipelines for high-volume environments. Passionate about transforming raw data into actionable insights, leveraging Azure Databricks, PySpark, SQL, and Hadoop to drive business decisions.What I Do:• Build and optimize ETL pipelines for processing large-scale sales, financial, and customer data.• Implement predictive analytics models to assess promotion effectiveness, uplift analysis, and sales trends.• Automate data workflows using Databricks Notebooks, SQL scripts, and orchestration tools to enhance efficiency.• Ensure data integrity through schema validation, performance tuning, and robust quality checks.• Optimize data storage and analytics using Azure Synapse, Power BI, and cloud platforms.Key Expertise:• Big Data Processing – PySpark, Hive, Impala, SQL• Cloud & Data Engineering – Azure Databricks, ADLS, Synapse Analytics• ETL & Data Pipelines – Hadoop, Spark, Kafka, Autosys• Automation & Optimization – Databricks Notebooks, Python, SQL

Experience

1. Digital Specialist Engineer L1

   Infosys

   Feb 2022 — Present · Gurugram, IN

   Big Data Developer with 3+ years of experience in large-scale data processing, transformation, and automation within high-sensitivity environments. Expertise in SQL, PySpark, Hive, Impala, and Hadoop. Proven ability to build and optimize ETL pipelines, ensuring data integrity and performance. Adept at collaborating with cross-functional teams to deliver scalable data solutions.

Education

• Inderprastha Engineering College

  Bachelor of Technology - BTech

  2017 — 2021