Blog

Writing about software engineering, data systems, AI, and building products.

AI Chatbots
Anthropic Claude
Backend Architecture
Django
E-Commerce
LLM
LangChain
Multi-Tenant SaaS
Next.js
OpenAI
PostgreSQL
Qdrant
RAG
Row-Level Security
System Design
WhatsApp Business API

Multi-Tenant SaaS Architecture: Serving 3 Brands From One Codebase with Django & Next.js

2025-04-0820 min read

A production case study on building a multi-tenant B2B/B2C e-commerce platform managing 3 independent brands, 5,000+ SKUs, and WhatsApp commerce — with Django backend and Next.js storefronts.

Multi-Tenant SaaS
Django
Next.js
E-Commerce
System Design

Building AI Chatbots That Actually Serve Real Customers

2025-04-011 min read

Lessons from shipping a multilingual AI chatbot on WhatsApp that handles orders in 5 languages for a regional FMCG brand.

AI Chatbots
LangChain
RAG
WhatsApp Business API
OpenAI