The cannabis industry isn't just another e-commerce business.
Every product, every business, and every transaction must comply with strict regulations that vary by state. Unlike traditional marketplaces, selling a product often requires license verification, lab-tested Certificates of Analysis (COAs), age restrictions, and compliance checks before a listing can even become visible.
Recently, I worked on a marketplace that solved many of these technical challenges. This article focuses on the engineering decisions behind the platform rather than the business itself.
Building a regulated marketplace meant solving problems beyond a typical e-commerce application.
Some of the major challenges included:
The goal was to build a scalable platform where every product entering the marketplace passed compliance checks before reaching buyers.
The platform was designed using a modern full-stack architecture.
One of the most interesting engineering challenges was handling Certificates of Analysis (COAs).
Instead of requiring administrators to manually review every report, AI was used to extract structured information from laboratory documents.
The workflow looked like this:
This significantly reduced manual processing while improving consistency.
Instead of allowing products to become available immediately, every product followed an approval lifecycle.
Business Registration
↓
License Verification
↓
Account Approval
↓
Product Upload
↓
COA Validation
↓
Administrative Review
↓
Marketplace Listing
↓
Available for Buyers
This workflow ensured that only approved products appeared in the marketplace.
A regulated marketplace requires compliance to be part of the application's architecture.
Some examples included:
These rules influenced both backend APIs and frontend user experiences.
Working on this project reinforced several important engineering principles:
This project demonstrated how modern AI techniques, scalable backend architecture, and well-designed workflows can simplify complex compliance processes while providing a better experience for businesses and administrators.
It was an excellent opportunity to combine full-stack engineering with AI-assisted document processing, workflow automation, and scalable SaaS architecture.
This article provides a high-level overview of the engineering approach.
The complete case study includes the project architecture, workflow diagrams, technical decisions, challenges, and implementation details.
This article is a condensed overview of the engineering challenges and architecture.
👉 [Read the full case study on my website](https://www.nirajkumar.in/work/ai-cannabis-compliance-marketplace)
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