Senior Data Scientist

What You'll Do

• Build and maintain entity resolution systems that detect duplicate records using supervised ML and string similarity techniques
• Develop classification models that categorize unstructured or semi-structured data into meaningful business categories
• Engineer features from messy, real-world text data — names, addresses, free-text fields — using string matching algorithms, phonetic encoding, n-grams, and other NLP techniques
• Design candidate retrieval and indexing strategies to make models performant at scale
• Tune thresholds, scoring logic, and rule-based overrides to balance precision and recall for production use cases
• Maintain production model artifacts and data pipelines, ensuring models stay current as underlying data evolves
• Collaborate with engineering and product teams to understand requirements and translate business problems into well-scoped modeling tasks

• 10+ years of experience building and deploying ML models end-to-end (not just notebooks)
• Strong Python skills — pandas, NumPy, scikit-learn, XGBoost or similar gradient boosting frameworks
• Hands-on experience with record linkage, entity resolution, or deduplication problems
• Experience building classification models (binary and multi-class) on structured and semi-structured data
• Deep familiarity with string similarity algorithms: edit distance, sequence matching, phonetic encoding, shingling
• Strong feature engineering instincts — ability to extract signal from noisy, inconsistently formatted data
• Comfort working with large serialized data structures and understanding memory/performance tradeoffs in production contexts
• Experience with SQL and relational databases (PostgreSQL or similar)
• Clear communication skills — ability to explain model behavior and tradeoffs to non-technical stakeholders

Nice to Have

• Experience with blocking and indexing strategies for scalable record linkage
• Background in NLP, text normalization, or information extraction
• Familiarity with model serving in API contexts (Flask, FastAPI, or similar)
• Experience in data quality, master data management, or marketplace domains
• Exposure to deep learning frameworks (PyTorch, TensorFlow) for text classification