ARJUN RAJ.
Home
Work
Services
Philosophy
Let's Build
Pay Invoice
Start a Project
Blog

Thinking out loud

about building software.

Technical articles on AI systems, web architecture, and security patterns — drawn from real projects and production experience.

December 15, 2025·8 min read

Building RAG Systems at Scale: Lessons from Production

What I learned building a Retrieval-Augmented Generation system that processes 10,000+ documents with sub-500ms response times — and the mistakes that almost derailed it.

AIRAGLangChainArchitecture
November 20, 2025·6 min read

Why I Choose Next.js for Production Applications

After building 15+ production applications across different frameworks, here is why Next.js remains my default choice — and when I reach for something else.

Next.jsReactArchitectureWeb Development
October 8, 2025·7 min read

Security-First Architecture: Patterns I Use on Every Project

Security should not be an afterthought or a pre-launch checklist item. Here are the architecture patterns I apply from day one on every project I build.

SecurityArchitectureBest Practices
Arjun Raj.

Building scalable digital products, AI systems, and full-stack solutions for founders and enterprises.

Navigation

  • Home
  • Work
  • Services
  • Blog
  • Philosophy
  • Contact
  • Make Payment

Services

  • Web Development
  • App Development
  • AI & Automation
  • System Architecture
  • Security Solutions

Connect

  • LinkedIn
  • GitHub

Legal

  • Terms & Conditions
  • Privacy Policy
  • Refund & Cancellation
  • Shipping & Delivery

Founder @ Digital Architect|Associate Manager @ Supreme Media Productions & SMP Institute of Film & Media

© 2026 Arjun Raj. All rights reserved.