Senior Data Scientist
Lancesoft India Pvt Ltd
Description : Role : Senior Data ScientistExperience : 3 to 5 Years (strictly relevant experience only)Location : Bangalore (Hybrid /Remote)Notice Period : 30 DaysAbout 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 matchingb. 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 relevanceCurrent challenges : - Moving beyond lexical search ? semantic retrieval- Handling long-tail queries and ambiguous intent- Balancing relevance vs business objectivesTech 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 (ref:hirist.tech)
Vacancy posted 9 days ago
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