Python & AI Developer | Agentic AI, LLMs & RAG | 9+ Years Backend Engineering

I'm a backend engineer with 9+ years building production software systems, and the last 2 years focused on Python and applied AI — agentic tools, RAG pipelines, and LLM-powered features.

• 🔭 Currently building agentic AI systems with LangChain and LangGraph
• 🌱 Exploring RAG architecture, voice AI, and multi-agent orchestration
• ✍️ I write about what I build — technical deep-dives, not just theory
• 💼 Background: enterprise backend engineering, API design, cloud deployment (AWS), secure authentication systems
• 📫 Reach me on LinkedIn

• rag-pipeline-demo — A production-style RAG pipeline using LangChain + LangGraph, with hybrid retrieval and a self-correcting query-rewrite loop.
• jwt-fastapi-auth-demo — JWT authentication in FastAPI with access/refresh token rotation and secure cookie storage, done the way I'd actually ship it.

• Building a Production RAG Pipeline with LangChain and LangGraph
• Debugging Hallucinations in RAG Systems: A Practical Playbook
• LangChain vs. LangGraph: When to Use Which
• More at → himanitayal.hashnode.dev

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