Data Science Specialist

Job Title: Data Science Consultants Location: Sunnyvale, CA (Onsite) Job Description: We are hiring Data Science Consultants with strong experience in Python, NLP, machine learning, data engineering, and model evaluation. The ideal candidate should have hands-on expertise building scalable ML solutions, working with large datasets, and improving search, ranking, recommendation, or NLP-based systems in production environments. Required Skills: • Strong Python programming experience • NLP experience using spaCy, HuggingFace Transformers, BERT, FastText, or semantic matching techniques • Experience with intent classification, entity recognition, and query relevance modeling • Hands-on experience with ML frameworks such as PyTorch, XGBoost, CatBoost, or LightGBM • Knowledge of Learning-to-Rank (LTR), LambdaMART, neural scoring models, or vector search technologies like FAISS/HNSW • Experience with data engineering tools such as PySpark, Dataflow, BigQuery, or pipeline automation • Experience with MLOps, model deployment, artifact versioning, and ML training pipelines • Strong understanding of model evaluation metrics including nDCG, MRR, MAP@K, A/B testing, and statistical significance • Experience building scalable data pipelines and feature engineering solutions Preferred Qualifications: • Experience with GCP, Azure ML, or cloud-based ML platforms • Familiarity with feature stores such as Feast, Tecton, or Cassandra • Experience working on search, recommendation, ranking, or large-scale AI/ML systems