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Andrew Clayman - Lead Data Scientist (Contract) in Remote

Andrew Clayman

Senior Data Scientist specializing in ML, NLP, and production AI systems

AppstemUniversity of SouthamptonRemote8 Years ExperienceSenior Level

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About

Machine learning/NLP engineer with deep Azure stack experience (Data Factory, Databricks/Spark, Delta Lake, Azure OpenAI, Azure AI Search) who built end-to-end production systems for semantic clustering, entity resolution, and hybrid search. Demonstrated measurable gains from embedding fine-tuning (~15% retrieval precision, ~10–12% nDCG@10) and designed scalable, quality-checked pipelines with MLOps best practices.

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Key Strengths

  • Built production-grade NLP pipeline linking unstructured reviews to sales/ops data
  • Scalable entity resolution design using blocking + LSH/vector search + ML re-ranking
  • Maintained ~95%+ precision in entity matching with manual review + automated quality checks
  • Improved retrieval/search relevance via embedding fine-tuning with rigorous offline + online evaluation (A/B tests)
  • Strong MLOps practices (MLflow, Docker, CI/CD, monitoring, idempotent pipelines, testing)

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Experience

Lead Data Scientist (Contract)Appstem · Aug 2025 – Presentcontract
Lead Data ScientistRacetrac · Jan 2025 – Aug 2025
Lead Data ScientistWyser · Jan 2024 – Jan 2025
Lead Data ScientistSSP · Oct 2022 – Jan 2024
Data ScientistTrilateral Research · Oct 2021 – Oct 2022
Lead Data ScientistSilver Stag Hedge Fund · May 2018 – Oct 2021

Education

University of Southamptonmaster, Computer Science with Artificial Intelligence (2022)

Awards

  • Netcraft Award - University of Southampton

Languages

English

Publications

1 publication

Machine LearningNatural Language Processing

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Connect with Andrew

Andrew already has a relationship with Reval, so a warm intro from us gets a much better response than cold outreach.

Typically responds within 24 hours

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Hire with Reval

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Andrew ClaymanSenior Data Scientist specializing in ML, NLP, and production AI systems