Senior Data Scientist on the Shopping Experience team at Instacart, focusing on Search. This role owns the analytics and experimentation strategy for search relevance, ranking quality, and latency, partnering with Product, Engineering, and ML. Responsibilities include defining metrics, designing and analyzing A/B tests, building diagnostic analyses, connecting offline model evaluation with online metrics, and improving data quality for search. The role requires strong analytical skills, product sense, and communication, with experience in A/B testing, SQL, Python/R, and modern AI tooling. Preferred qualifications include experience in search relevance, recommendations, NLP, embeddings, and bridging offline/online evaluation.