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Senior Data Scientist (ML & GenAI)

Senior

Ref · CND-25825

Experience
8 yrs
Region
Omaha metro, Nebraska / Remote
Availability
2 weeks

Senior data scientist with 8+ years at a regional health insurer, growing from analyst to senior scientist. Builds and productionizes machine learning in Python, SQL, and Databricks, from fraud and churn models to NLP pipelines and an LLM-based retrieval (RAG) system now used in clinical review. Partners closely with engineering, product, and business teams and is looking to go deeper into GenAI work.

  • Productionized an LLM-based RAG system that surfaces approval-ready evidence for clinical preauthorizations, cutting review time.
  • Built and deployed an XGBoost fraud model, with pipelines and monitoring, that prevents $10M+ in annual losses.
  • Deployed a 90%-accuracy churn model that gives sales teams a prioritized, self-service view of at-risk accounts.
  • Saved 60+ hours a month of manual triage with NLP pipelines that raised classification precision by 25%.
  • Unified 32M+ records from 10+ sources into automated pipelines feeding analytics, experimentation, and ML.

Technical Expertise

  • Python
  • SQL
  • PySpark
  • Databricks
  • MLflow
  • Azure
  • XGBoost
  • NLP
  • RAG / LLMs
  • Power BI
  • A/B Testing
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