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Nitin Shivakumar

Senior Data Scientist specializing in healthcare ML, LLMs, and responsible AI

CignaUniversity at BuffaloMorris Plains, NJ4 Years ExperienceSenior LevelWorks On-Site

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About

Clinical data scientist who has built an agentic LLM-powered literature review assistant (with RAG-style storage/retrieval) to identify predictors for downstream predictive modeling. Also delivered a patient-focused progression analysis model using Databricks + Airflow orchestration, partnering closely with clinicians to define targets and validate that model insights aligned with clinical expectations.

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Key Strengths

  • Designed end-to-end architecture for an LLM-based agentic literature review assistant
  • Built RAG-style system to store and retrieve paper content for Q&A and predictor identification
  • Hands-on orchestration of production data/model workflows using Databricks and Apache Airflow
  • Applied iterative testing with diverse test cases and metric-based evaluation
  • Strong cross-functional collaboration with clinicians to define targets and validate model outputs

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Experience

Senior Data ScientistThe Cigna Group (Genpact) · Jul 2024 – Present
Data ScientistGenpact · Dec 2021 – Dec 2022
Data AnalystAptean · Oct 2020 – Nov 2021

Education

University at Buffalomaster, Engineering Science (Data Science) (2024)
GITAM Universitybachelor, Engineering (2020)

Languages

English

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Nitin ShivakumarSenior Data Scientist specializing in healthcare ML, LLMs, and responsible AI