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Sagar Kumbari Sulkatii Onli Manolli Belagavi, Karnataka (cid:131) 7760981031 # [email protected] (cid:239) linkedin.com/in/kumbarisagar § https://github.com/kumbarisagar3011 Education KLE Technological University Aug. 2019 – June 2023 Bachelor of Electronics and Communication Hubballi, Karnataka Experience Primus Technological solutions via Accenture Feb 2025 – present Data Engineer/ Machine Learning Engineer Bengaluru, Karnataka • Designed and optimized a LangChain-based RAG pipeline leveraging LLMs, implementing advanced document chunking and retrieval strategies, and exposing the system through scalable Python and Flask APIs to enable accurate, context-aware chatbot responses,which significantly reduced manual support effort and accelerated issue resolution. • Incorporated python scripts and Machine learning model that helps in automation of email that drived the company to process the user email faster and more efficently. • Fine-tuned a BERT-based NLP classification model on custom domain data to accurately identify user-reported issue categories, significantly improving classification accuracy and enabling faster issue triage and resolution, thereby increasing operational efficiency and reducing manual effort • Designed and implemented end-to-end conversational context management for a voice-based AI assistant using LLMs and LangGraph, supporting multi-turn dialogue flow and contextual data analysis for accurate, state-aware responses. IIT Madras - Department of Da