Description :

Role : Senior Data Scientist

Experience : 3 to 5 Years (strictly relevant experience only)

Location : Bangalore (Hybrid /Remote)

Notice Period : 30 Days

About the role :

Youll work on the core ranking and retrieval systems behind search, optimizing how user queries map to the product catalog at scale.

What youll do :

- Develop search ranking models (learning-to-rank, neural ranking, hybrid)

- Improve query understanding :

a. Tokenization, normalization, semantic matching

b. Embeddings (dual encoders, semantic search)

- Work with implicit feedback signals (click models, dwell time, conversions)

- Design and evaluate ranking metrics (NDCG, MAP, CTR, CVR)

- Run controlled experiments to improve relevance

Current challenges :

- Moving beyond lexical search ? semantic retrieval

- Handling long-tail queries and ambiguous intent

- Balancing relevance vs business objectives

Tech stack (indicative) :

- Python, SQL

- Elasticsearch / OpenSearch (or similar)

- ML frameworks (XGBoost, LightGBM, DL models)

What were looking for :

- Experience in search, ranking, or information retrieval

- Strong feature engineering and modeling skills

- Understanding of trade-offs between offline metrics and online impact

- Product intuition around search UX