• Engineered a lightGBM-based pricing model for predicting customer acceptance rates, resulting in a 1.7% increase in profit margins• Leveraged OpenAI API to extract high-potential outbound marketing leadsfrom speech-to-text data, achieving a 3% loan application rate• Analyzed unsecured loans using MECE and funnel analysis, uncovering$700 million in potential business opportunities• Developed a RESTful API with ETL for financial calculations, reducing reviewtime from 2 hrs to <1 min, handling 400 daily requests with 99.9% uptime• Coordinating data validation in response to database and Airflow version upgrades, ensuring data accuracy and consistency