Why it matters
A strong example of domain-driven backend engineering: rules, persistence and security boundaries are part of the product.
Architecture
SYSTEM / VERIFIED ARCHITECTURE LENS
Domain coreDAG-based GRI classification
PersistenceSQLAlchemy data model
SecurityPBKDF2 password hashing + JWT
AuthorizationRole-based access control
ServicesFastAPI API + catalog importer
Public repository This page intentionally avoids invented performance metrics, customer counts or production claims.
Engineering focus
Problem framing → architecture → implementation → validation → documentation → the next useful version. The portfolio is designed to show decisions and evidence, not just screenshots.