Data Scientist
Jan 2026 – Apr 2026Etra Ventures
- •Built a personalized video ranking microservice for a food-focused short-video platform using Python, FastAPI, and Supabase, deployed as a serverless API on Vercel.
- •Designed a hybrid recommendation engine with a parent/child architecture that classifies users into lifecycle states (cold start, learning, personalized, re-engagement) based on engagement metrics, running specialized scoring strategies in parallel.
- •Fused scores via weighted min-max normalization and implemented optional re-ranking using cosine similarity over precomputed user and video embeddings.