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Building a Production-Ready RAG System: From Scratch to Cloud Deployment

A series of articles details the development of a Retrieval-Augmented Generation (RAG) system, focusing on practical implementation and design choices. The project progresses from basic RAG to incorporating tool use, AI agents, and a Model Context Protocol (MCP) for exposing tools as a server. Key decisions include using pgvector over dedicated vector databases, optimizing embedding dimensions, and employing Gemini 2.5 Flash for generation. The series also touches upon production challenges like data staleness, retrieval failures, and the importance of evaluation and observability. AI

IMPACT Provides practical guidance on building robust RAG systems, addressing common production pitfalls and offering architectural choices.

RANK_REASON The cluster consists of a series of technical articles detailing the implementation and design decisions for building a RAG system, including specific tools and techniques.

Read on Medium — Claude tag →

AI-generated summary · Google Gemini · from 10 sources. How we write summaries →

Building a Production-Ready RAG System: From Scratch to Cloud Deployment

COVERAGE [10]

  1. Towards AI TIER_1 English(EN) · Ragleap ·

    Production RAG Systems — 7 Lessons We Learned the Hard Way

    <figure><img alt="" src="https://cdn-images-1.medium.com/max/1024/1*Ld1-bXZHwkxKuEgkpjD8qw.jpeg" /></figure><p>Building a RAG demo takes an afternoon. Building a RAG system that works reliably in production — handling thousands of real business queries daily, in multiple language…

  2. dev.to — MCP tag TIER_1 English(EN) · Hiroki Kameyama ·

    Building a RAG System from Scratch — MCP: Exposing pgvector as a Reusable Tool Server

    <p>In the <a href="https://dev.to/hiroki-kameyama/building-a-rag-system-from-scratch-ai-agents-memory-planning-and-multi-step-reasoning-1kp9">previous article</a>, we built AI Agents that autonomously search our pgvector database. One limitation remained: the tools were hardcoded…

  3. Medium — MLOps tag TIER_1 English(EN) · Banasree Ghosh ·

    Building a Production-Ready RAG System End-to-End

    <div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/@banasree.mani/building-a-production-ready-rag-system-end-to-end-dc5ad6f5b415?source=rss------mlops-5"><img src="https://cdn-images-1.medium.com/max/2600/1*9kQq8Tf-_pAeTykQ3b-Vvw.png" width="26…

  4. Medium — Claude tag TIER_1 English(EN) · Ashish Nishad ·

    Building Production-Grade RAG Systems: From Prototype to Bank-Scale Reliability

    <div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/the-better-life/building-production-grade-rag-systems-from-prototype-to-bank-scale-reliability-42cfa5f071e2?source=rss------claude-5"><img src="https://cdn-images-1.medium.com/max/2600/1*L0WJKD…

  5. dev.to — LLM tag TIER_1 English(EN) · Hiroki Kameyama ·

    Building a RAG System from Scratch — Wrap-up and What Comes Next

    <p>In this final article, we'll recap what we built across the series, consolidate the design decisions, and point to where to go next.</p> <h2> What We Built </h2> <p>Starting from a blank Python project, we built a complete AI system step by step:<br /> </p> <div class="highlig…

  6. dev.to — LLM tag TIER_1 English(EN) · Hiroki Kameyama ·

    Building a RAG System from Scratch — Tool Use: Let the LLM Search Autonomously

    <p>In the <a href="https://dev.to/hiroki-kameyama/building-a-rag-system-from-scratch-design-decisions-explained-40hd">previous article</a>, we examined the design decisions behind our RAG pipeline. Now we'll give the LLM the ability to call our search functions autonomously — thi…

  7. dev.to — LLM tag TIER_1 English(EN) · Hiroki Kameyama ·

    Building a RAG System from Scratch — Design Decisions Explained

    <p>In the <a href="https://dev.to/hiroki-kameyama/building-a-rag-system-from-scratch-with-pgvector-and-gemini-implementation-3n28">previous article</a>, we built a working RAG pipeline. Now let's step back and ask <em>why</em> we made each design decision — and what alternatives …

  8. dev.to — LLM tag TIER_1 English(EN) · Hiroki Kameyama ·

    Building a RAG System from Scratch with pgvector and Gemini — Implementation

    <p>In the <a href="https://dev.to/hiroki-kameyama/building-a-rag-system-from-scratch-with-pgvector-and-gemini-introduction-c8i">previous article</a>, we covered the three core concepts behind RAG. Now let's build it.</p> <p>By the end of this article you'll have a working RAG pip…

  9. dev.to — LLM tag TIER_1 English(EN) · Hiroki Kameyama ·

    Building a RAG System from Scratch with pgvector and Gemini — Introduction

    <h2> What This Guide Covers </h2> <p>When you start building LLM-powered applications, one pattern becomes unavoidable: <strong>RAG (Retrieval-Augmented Generation)</strong>.</p> <p>LLMs only know what they were trained on. Your company's internal documents, the latest spec sheet…

  10. dev.to — LLM tag TIER_1 English(EN) · Mridul Nagpal ·

    RAG in production: the failure modes nobody warns you about

    <p>Retrieval-augmented generation looks trivial in a tutorial: embed some documents, drop them in a vector database, stuff the top matches into a prompt, done. Then you point it at real company data and real users, and you discover that the demo was the easy 10%.</p> <p>We build …