Middle Data Scientist

- Designed and launched multi-armed-bandit creative optimization, increasing CTR by 3-5%. - Added features to a bidding model that improved ROC-AUC by 1.5 percentage points. - Built and productionized a FastAPI service for banner generation using Triton, MinIO, and MongoDB; combined text detection, segmentation, inpainting, and image generation. - Improved deployed generation models and reduced data transfer between model stages by 10x. - Automated product reporting, reducing information turnaround time by 5x; built a Spark-based whitelist generation service. - Integrated services into production, reviewed code, and helped onboard new team members.