Yamini Nathani

GenAI Data Scientist | LLMs • RAG Pipelines • Prompt Engineering • LangChain • Hugging Face • SQL • AWS Cloud • Vector DBs • Python • Synthetic Data • AI Evaluation Metrics

Role
Machine Learning Engineer at American Express
Location
Dallas, TX, US
LinkedIn followers
500 followers
Information TechnologyView LinkedIn profile

About Yamini Nathani

GenAI-focused Data Scientist with a Master’s in Business Analytics and Artificial…

Experience

  1. Machine Learning Engineer

    American Express

    Sep 2024 — Present · TX, US

    Developed and deployed predictive analytics pipelines using PySpark and Spark SQL on Databricks, improving data processing efficiency by 30% and uncovering actionable insights from large-scale datasets.Designed, trained, and optimized machine learning models, increasing prediction accuracy by 15%, reducing computation costs by 20%, and enhancing decision-making speed by 25% through effective collaboration with business stakeholders.Performed advanced data analysis using Python, SQL, and Hive QL, including feature engineering, customer segmentation (K-Means, Hierarchical Clustering), and forecasting with a 95% accuracy rate, driving business decisions and profitability improvements.Built and automated robust machine learning models, implementing algorithms such as Random Forest, Gradient Boost, and XGBoost, while evaluating model performance with metrics like accuracy, precision, recall, and F1-score.Created impactful visualizations and dashboards with Tableau, Matplotlib, and Seaborn, delivering insights and recommendations to stakeholders, leading to a 10% reduction in exceptions and a 20% improvement in resource utilization efficiency.

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Yamini Nathani — Machine Learning Engineer at American Express in Dallas, TX, US | Unifers