Samayita Bhattacharjee
Senior Data Scientist @Huntington National Bank
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WORK HISTORY
Senior Data Scientist @Huntington National Bank
Won a company-wide technology hackathon by building an agentic GenAI system using LLM workflows (Strands), automating client research and summarization with significant annual time savings and multi-million-dollar data enrichment potential.• Led development of an interpretable predictive modeling framework in Python for deposits forecasting using time series analysis (ARIMA) and supervised regression models with macroeconomic drivers.• Built short-term time series forecasting models using Prophet modeling for highly seasonal customers, outperforming baseline approaches.• Designed an NLP-based entity resolution solution using unsupervised modeling techniques to match customer and prospect records (name + address), unlocking thousands of cross-sell opportunities and multi-million-dollar revenue potential.• Developed supervised machine learning models (Random Forest) for lookalike prospecting and predictive targeting, supporting seven-figure new-customer growth opportunities.• Built an end-to-end model scoring and production-ready pipeline enabling 5-6 hours of time-savings.• Improved model performance by addressing class imbalance in supervised learning models via SMOTE/oversampling, achieving a 25–30% improvement in F1 score.• Enhanced anomaly detection and predictive monitoring systems by integrating daily and weekly data and productionizing reusable time series forecasting components.• Applied NLP-based topic modeling and sentiment analysis (unsupervised learning) to relationship-manager notes to extract behavioral signals and reduce false anomalies.• Leveraged Snowflake and SQL for large-scale data extraction and managed projects through Azure DevOps and Git-based version control.• Improved efficiency and productivity leveraging Gen AI tools like Bedrock Code Assistant and Microsoft Copilot through tailored prompt engineering.• Served as a buddy and mentor for new team members, guiding onboarding, modeling best practices, and analytics workflows.
EDUCATION
Indian Statistical Institute, Kolkata
M.Stat, Statistics
St. Xavier's College (Autonomous), Kolkata
Bachelor of Science (B.Sc.), Statistics
University of California, Davis
Doctor of Philosophy - PhD, Statistics
SKILLS
ABOUT SAMAYITA BHATTACHARJEE
Senior Data Scientist with a PhD in Statistics and experience building predictive models, time series forecasts, and NLP solutions that drive real-world business impact.I work across supervised and unsupervised machine learning, time series forecasting, and anomaly detection, with end-to-end ownership from data extraction and feature engineering to modeling and deployment-ready pipelines. I’ve built entity resolution and lookalike models, forecasting frameworks, and NLP-based systems for insight extraction at scale.I also work hands-on with GenAI and LLM-driven workflows, including agentic AI systems built using Strands, to automate research and enrich data with measurable efficiency gains.Previously, I worked in risk modeling and model validation in the financial sector and have a strong academic background, including research in functional time series and teaching experience in statistics.I’m passionate about applying rigorous statistical thinking, modern machine learning, and GenAI to solve complex problems—and I enjoy mentoring teammates and collaborating across disciplines.
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