---
title: "Ankush Aggarwal (@ankushagg) | Hashnode"
description: "Principal Data Scientist at Walmart, 11+ years of Experience in ML & AI. Read the latest articles by Ankush Aggarwal on Hashnode."
url: "https://hashnode.com/@ankushagg"
---

@ankushagg

# Ankush Aggarwal

@ankushagg · Bengaluru · Joined September 2026

Principal Data Scientist at Walmart, 11+ years of Experience in ML & AI

### [Practical Considerations while Designing a Production-Grade RAG System](https://ankushagg-ai.hashnode.dev/practical-considerations-while-designing-a-production-grade-rag-system?utm_source=hashnode&utm_medium=feed)

Once we understand retrieval, what does it take to make the system work reliably at production scale?

15 min read · [ankushagg-ai.hashnode.dev](https://ankushagg-ai.hashnode.dev/practical-considerations-while-designing-a-production-grade-rag-system?utm_source=hashnode&utm_medium=feed)

[Sep 13](https://hashnode.com/posts/practical-considerations-while-designing-a-production-grade-rag-system/6aa6589bf04d32b7ac1a8c68)

### [RAG & Information Retrieval: Understanding the Retrieval Layer](https://ankushagg-ai.hashnode.dev/rag-information-retrieval-understanding-the-retrieval-layer?utm_source=hashnode&utm_medium=feed)

What actually happens between a user's question and the documents supplied to the LLM?

9 min read · [ankushagg-ai.hashnode.dev](https://ankushagg-ai.hashnode.dev/rag-information-retrieval-understanding-the-retrieval-layer?utm_source=hashnode&utm_medium=feed)

[Jul 31](https://hashnode.com/posts/rag-information-retrieval-understanding-the-retrieval-layer/6aa40b0cfa7347470ce64c6e)