Nikhitha G.

Experience

1. Data Engineer

   Northern Trust

   May 2024 — Present · US

   Collaborated with engineering teams to design MySQL database schemas for customer review data storage, optimizing OLTP performance through indexing and partitioning, reducing query latency by 18%.Built ETL pipelines using SQL to aggregate and transform raw data from multiple tables, enabling seamless integration into data lakes (AWS S3) and improving pipeline reliability with data validation checks.Engineered batch processing workflows (Python, Hadoop) to ingest and clean structured/unstructured data from MySQL and MongoDB, resolving schema mismatches and ensuring data consistency for downstream analytics.Supported BI initiatives by analyzing marketing campaign metrics (e.g, CTR, conversion rates) using R, automating weekly reports that reduced manual effort by 10 hours/month.Developed Tableau dashboards to visualize customer sentiment trends, enabling stakeholders to identify actionable insights and driving a 15% improvement in campaign ROI.Implemented feature engineering pipelines (Python) for ML models, including normalization, tokenization, and PCA-driven dimensionality reduction, improving model training efficiency by 25%.Contributed to ML model development (scikit-learn) by training and validating Logistic Regression and Random Forest classifiers, achieving 88% accuracy in customer churn prediction.Orchestrated data workflows using Airflow to automate ETL jobs, reducing manual intervention and ensuring SLA-compliant daily data refreshes for reporting.Documented data lineage and pipeline dependencies in Jira, streamlining troubleshooting and onboarding for cross-functional teams.

Education

• Central Michigan University

  Master's degree

  2022 — 2024

• Vel Tech Technical University

  Bachelor of Technology

  2014 — 2018