Backend Engineer - Recommendation (all genders)

Develop the recommendation engine powering ABOUT YOU's homepage, product, and outfit pages in Node.js/TypeScript Serve offline-trained ML models (matrix factorization, brand similarity, image embeddings) at Black-Friday scale from Valkey, DynamoDB, and OpenSearch Design personalization logic: feed assembly, fallback chains, deduplication, diversity, and A/B experimentation Build GenAI product features like our streaming Gemini fashion advisor, focusing on low latency, session state, and token cost control Own reverse-ETL pipelines that move BigQuery model outputs into high-performance hot stores Instrument recommendation coverage, track business metrics via SQS/BI systems, and shape architecture alongside our Tech Lead