Vivek Sagar

About Vivek Sagar

Transforming businesses with data-driven insights. I have a Master\'s degree in Data Science from Northeastern University, where I learned cutting-edge ML algorithms, causal analysis, and Big Data tools.Currently, I\'m working at CVS Health, where I lead impactful projects that boost revenue, customer engagement, and operational efficiency for the organization. Using machine learning, experimentation design, and optimization techniques, I have delivered annualized cost savings of multi $ MM, improved resource allocation by 18%, and increased user retention rate by 12%. I also collaborate with various stakeholders to drive behavioral change and personalized care for the customers.Previously, I was a Data Scientist at Infosys, where I enhanced employee retention, reduced operational costs, and boosted revenue for an Investment Bank. I also interned as an ML Ops at New York Life Insurance Company, where I optimized data management and migrated data to Hadoop. I\'m always eager to learn new skills and stay updated on the latest developments in the data science field. I have multiple certifications from Google Cloud Education, and I\'m proficient in Python, R, SQL, Hadoop, and BigQuery. I\'m also interested in applying data science to social good and healthcare domains.

Experience

1. Senior Data Scientist

   CVS Health

   Jul 2021 — Present · New York, NY, US

   Transform Healthcare using GenAI - RAG & Agentic Workflows & Data-Driven Insights!Building GenAI capabilities utilizing Gemini LLM and applying prompt engineering to extract insights from Aetna’s Provider Call Center calls, identify system gaps, and enhance self-help platforms—reducing routine call volumes and enabling representatives to focus on complex cases that truly need human expertise.Developing LLM based Framework to help the organization in their quarterly financial guidance. Leveraging LLMs to best utilize text data by creating their embeddings. Additionally using various macro-economic factors. Developing Combination of Advanced ML and Time Series models to forecast expenditure estimates for upcoming quarter.Leverage machine learning, experimental design, and statistical analysis to guide stakeholders in crafting effective marketing strategies for business development to maximize ROI. Focus on improving healthcare provider practices/behavior to support members on their journey to better health. Utilize various interventions techniques like traditional channel based NBA & GTM campaigns to advanced omni-channel & digital platform based interactions.

Education

• KIIT - Kalinga Institute of Industrial Technology

  Bachelor of Technology (B.Tech.), Engineering

  2012 — 2016

• Northeastern University

  Master's degree @ Khoury College of Computer Science, Data Science

  2019 — 2021

• Loyola High School, Patna

  Intermediate, Science(Maths)

  2009 — 2011