Andrei Usatii

Full-Stack, Cloud & AI Engineer | Architecture | Distributed Systems | AI Workflows

AWS Certified Developer, Associate AWS Certified Solutions Architect, Associate

Blogs

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Practical insights and real stories to guide your product from vision to reality.

Dropzone architecture: shoppers call an HTTP API, one Lambda per route, backed by the catalog, commerce and carts DynamoDB tables

October 19, 2026

Serverless & Data Modelling

Designing DynamoDB Tables From Access Patterns

A drop sells 500 units in one minute and not one may be sold twice. That constraint decides every key, index and table in the data model, and this is how it was designed.

Andrei Usatii