Gowtham Reddy Sama

About Gowtham Reddy Sama

Experienced Data Scientist with 4 years of expertise in developing cutting-edge machine…

Experience

1. Data Scientist

   Goldman Sachs

   Jul 2023 — Present · San Francisco, CA, US

   Designed a two-stage machine learning pipeline with an LSTM model to forecast product prices two weeks in advance, achieving 90% accuracy in predicting short-term price trends. • Leveraged XGBoost to predict customer churn, reducing churn by 15% and enhancing monthly P&L accuracy through proactive risk identification.• Deployed a Claude v3.1 generative AI model for contextual client support, cutting response times by 35% and increasing customer experience ratings by 2 points.• Led a team of two interns to develop an anomaly detection system using time-series data, reducing false positives by 25% and bolstering transaction security with advanced trend analysis.• Built an LightGBM model for predicting counterparty defaults, cutting false negatives by 50% and reducing credit exposure losses by 20%, enabling dynamic collateral management.• Enhanced CVA metric forecasting accuracy by 4% by integrating web-scraped features from SEC filings into an XGBoost model, freeing $200M in capital for investments.• Segmented counterparties into 16 clusters using K-Means with dimensionality reduction via PCA, facilitating risk prioritization based on riskiness, product diversity, and exposure volatility. • Published five Tableau dashboards for self-serve analytics, increasing usage by 40% and decreasing ad-hoc requests by 60%.