R Bhavagna

About R Bhavagna

Data Scientist and ML Engineer with 4+ years of experience building and deploying machine…

Experience

1. Data Scientist Gen Ai Engineer

   Best Buy

   Sep 2024 — Present

   Develop Retrieval-Augmented Generation (RAG) systems using OpenAI, LangChain, and FAISS, improving response accuracy by 37%.Build LLM-based internal chatbot using GPT-4, Pinecone, and LangChain, reducing customer service query time by 42%.Fine-tune open-source models (LLaMA2, Falcon) using domain-specific datasets and frameworks like Hugging Face and NLTK, increasing model accuracy by 28%.Deploy scalable AI models using Docker, Kubernetes, and FastAPI, reducing inference latency by 35%.Automate model training, evaluation, and tracking using MLflow and Airflow pipelines, boosting workflow efficiency by 40%.Engineer prompts for LLMs such as GPT-4, Claude, and Gemini to optimize QA and summarization tasks, improving output quality by 25%.Apply advance NLP techniques using NLTK, Transformers, and LangChain for tasks like entity recognition, summarization, and classification.Perform A/B testing and model performance evaluation using SQL and Power BI to assess feature enhancements and drive adoption metrics.

Education

• Sri Venkateswara College of Engineering, Tirupati

  Bachelor of Technology - BTech

• Texas Tech University

  Master's degree