Hemanth Sai Kumar Challapalli
Data Scientist | AI Engineer | Generative AI | AWS Certified | Deep Learning | NLP | SQL | Data Visualization | Python | React | Node JS
- Role
- Ai Engineer at People Tech Group Inc
- Location
- Renton, WA, US
- LinkedIn followers
- 500 followers
About Hemanth Sai Kumar Challapalli
Innovative AI/NLP Engineer and Data Scientist with extensive hands-on experience in…
Experience
Ai Engineer
Aug 2024 — Present · Seattle, WA, US
Tech: Python, Langgraph, GPT‑4.1, Neo4j, PostgreSQL, Azure ML, Docker,OCR,Video Indexer. Implemented AI agents with LangChain and GPT-4 Mini for customer support, reducing response time by 40% through automated intent detection.Built a sentiment analysis pipeline for AR-15-related data using DistilBERT, achieving 92% accuracy in sentiment classification.Optimized API handling with Azure Machine Learning, improving throughput by 35%.Enhanced email processing by 50% through graph-based retrieval with Neo4j and LangGraph.Integrated real-time external knowledge via Bing Search, boosting response relevance by 45%.Designed a hybrid RAG pipeline with PostgreSQL (pg vector) and Azure AI Search, achieving 95% precision in text and image retrieval.Implemented memory planning in LangGraph agents for context retention, improving user continuity by 30%.Utilized GPT-4 Vision for image captioning and OCR, reducing manual processing time by 25% with 98% accuracy.Applied computer vision models in RAG pipelines, achieving 90% accuracy in automated image classification.Optimized vector embeddings with HNSW indexing in PostgreSQL, increasing similarity search speed by 200%.Orchestrated MLOps pipelines with Azure ML and Docker, reducing deployment cycles by 50%.Collaborated with stakeholders to present outcomes, aligning solutions with business objectives.
Education
Jawaharlal Nehru Technological University
Bachelor of Technology - BTech, Computer science and engineering
2017 — 2021
Rowan University
Master's degree, Data Modeling/Warehousing and Database Administration
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