Nikhil Kumar

Nikhil Kumar

Software Engineer

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location of Nikhil KumarSan Diego, California, United States

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  • Timeline

  • About me

    Software Engineer @ Walmart Global Tech | Master of Science in Data Science

  • Education

    • Rochester Institute of Technology

      2019 - 2021
      Master of Science - MS Data Science
    • Cochin University of Science and Technology

      2003 - 2007
      Bachelor's degree Information Technology
  • Experience

    • Tata Consultancy Services

      Sept 2007 - Jun 2013
      Software Engineer

      ● Designed & implemented Python, Java, C++ tax automation modules for Indian states, boosting efficiency & streamlining processes.● Optimized travel token/smart card database for a major Indian city's Metro system, resulting in significant improvements in transaction speed, accuracy, and revenue.● Automated efficient data ingestion, transformation, and loading (ETL) processes for improved data pipeline management.● Utilized Pytest & Jenkins for CI/CD practices, improving software quality & reducing development turnaround time.● Possess expertise in Python, Java, C++, and familiarity with cloud platforms. Show less

    • Walmart Global Tech

      Nov 2021 - now
      Software Engineer 3

      ● Developed and deployed highly scalable cloud data warehouses on GCP and Azure, achieving a 30% improvement in data processing efficiency through custom-designed query pipelines, enabling faster data insights for business stakeholders.● Engineered data pipelines using PySpark, GCP, and Airflow, employing dimensional modeling to support inventory loss analysis. This resulted in a projected cost saving of $10 million over 5 years and improved inventory management decisionmaking.● Automated 70% of data pipeline testing using Pytest, ensuring data quality and integrity while reducing manual testing time by 60%. This freed up valuable resources for further data engineering initiatives.● Optimized big data processing using Apache Spark on a large e-commerce dataset, resulting in a 2x reduction in processing time for daily sales reports.● implemented robust data security measures, including access controls and encryption, to ensure data privacy and compliance with PCI-DSS regulations for a financial services client.● Proactively monitored and maintained data pipelines, identifying and resolving a critical performance bottleneck that yielded a 15% improvement in data loading speed. Show less

  • Licenses & Certifications