--- title: "SANAN ANSARI (@sannan) | Hashnode" description: "SANAN ANSARI (@sannan) writes on Hashnode. Read their latest articles and follow their work." url: "https://hashnode.com/@sannan" --- @sannan # SANAN ANSARI @sannan · Joined January 2023 [Website](https://sannan.app/) ### [Phase 3: Agents and Memory — LLMs That Think and Remember](https://learn.sannan.app/agents-memory-llms-think-remember?utm_source=hashnode&utm_medium=feed) AI agents from scratch — tool use, plan execute pattern, and persistent memory across sessions. Includes the looping agent failure and why it matters. 10 min read · [learn.sannan.app](https://learn.sannan.app/agents-memory-llms-think-remember?utm_source=hashnode&utm_medium=feed) [Aug 14](https://hashnode.com/posts/agents-memory-llms-think-remember/6a7eb7811c87d7b7e6a6f956) ### [From Zero to AI Engineer — 8 Levels That Actually Make Sense](https://learn.sannan.app/from-zero-to-ai-engineer-8-levels-that-actually-make-sense?utm_source=hashnode&utm_medium=feed) Learn AI engineering from scratch in 8 practical levels. Build LLM apps, RAG, embeddings, agents, streaming, memory and structured outputs with Python 12 min read · [learn.sannan.app](https://learn.sannan.app/from-zero-to-ai-engineer-8-levels-that-actually-make-sense?utm_source=hashnode&utm_medium=feed) [Jul 22](https://hashnode.com/posts/from-zero-to-ai-engineer-8-levels-that-actually-make-sense/6a60ac004d94bd233ca72312) ### [Contract Intelligence — RAG over Legal Documents](https://learn.sannan.app/contract-intelligence-rag-over-legal-documents?utm_source=hashnode&utm_medium=feed) Build contract intelligence system with RAG — Q&A over legal documents, structured extraction with Instructor, and a 21-case eval suite hitting 100%. 11 min read · [learn.sannan.app](https://learn.sannan.app/contract-intelligence-rag-over-legal-documents?utm_source=hashnode&utm_medium=feed) [Jul 14](https://hashnode.com/posts/contract-intelligence-rag-over-legal-documents/6a55d3e1c8fbf5f2bd971ea1) ### [Embeddings and RAG — How AI Systems Actually Know Things](https://learn.sannan.app/embeddings-and-rag-how-ai-systems-actually-know-things?utm_source=hashnode&utm_medium=feed) A RAG from scratch with sentence-transformers and ChromaDB. Covers embeddings, chunking, semantic and a 6-case eval suite that caught a document gap. 10 min read · [learn.sannan.app](https://learn.sannan.app/embeddings-and-rag-how-ai-systems-actually-know-things?utm_source=hashnode&utm_medium=feed) [Jul 6](https://hashnode.com/posts/embeddings-and-rag-how-ai-systems-actually-know-things/6a4b425957a1483955bb0fd0) ### [8 Weeks as an AI Engineer — What I Built, What Broke, What's Next](https://learn.sannan.app/8-weeks-as-an-ai-engineer-what-i-built-what-broke-what-s-next?utm_source=hashnode&utm_medium=feed) Retrospective after 8 weeks transitioning from Angular to AI engineering. 3 live URLs, 39 traced calls, 15/15 evals, zero failures. 8 min read · [learn.sannan.app](https://learn.sannan.app/8-weeks-as-an-ai-engineer-what-i-built-what-broke-what-s-next?utm_source=hashnode&utm_medium=feed) [Jun 29](https://hashnode.com/posts/8-weeks-as-an-ai-engineer-what-i-built-what-broke-what-s-next/6a4217a5cf8ae1eb79da07dc)