Hi, I’m Nitesh Upadhyay, a Generative AI Engineer passionate about building real-world, production-ready AI systems. I transitioned into Generative AI after working in backend and full-stack development, driven by curiosity around how intelligent systems think, reason, and act. Along the way, I cracked multiple offers from Indegene, GlobalLogic, Deloitte, Impetus, EXL, LTIMindtree, and Genpact, and currently work as a GenAI Engineer at Hexaware. My core expertise includes: LLMs & Prompt Engineering LangChain, LangGraph & Agentic AI RAG systems (Vector DBs, embeddings, retrievers) FastAPI + Streamlit AI applications AI chatbots, workflow automation & intelligent agents AWS deployment for AI systems