https://tejslm.com/blog I build AI-powered applications, scalable data pipelines, automation tools, and small SaaS products. en-us Sat, 08 Aug 2026 19:47:47 GMT https://tejslm.com/blog/building-a-rag-chatbot https://tejslm.com/blog/building-a-rag-chatbot Thu, 12 Jun 2025 00:00:00 GMT A practical walkthrough of how I built a chat-with-your-PDFs system using LangChain, FAISS, and HuggingFace embeddings. RAG LangChain LLM FAISS https://tejslm.com/blog/natural-language-to-sql https://tejslm.com/blog/natural-language-to-sql Tue, 20 May 2025 00:00:00 GMT How I built a chatbot that lets non-technical users query BigQuery in plain English using Gemini. SQL Gemini BigQuery Streamlit https://tejslm.com/blog/medallion-architecture-databricks https://tejslm.com/blog/medallion-architecture-databricks Tue, 08 Apr 2025 00:00:00 GMT How I structured a retail data pipeline using the bronze, silver, and gold layers of the medallion architecture. Databricks PySpark Delta Lake Data Engineering