~mostafa_al_mahmud

Case Studies

Technical decision narratives from real delivery contexts

Each study documents problem framing, constraints, architecture options, trade-offs, implementation details, and lessons learned.

AWS serverless OAuth and event-driven synchronization architecture diagram
Data and analytics

From Manual OAuth Onboarding to Event-Driven Sync

Manual onboarding and credential handling could not scale and introduced security and operational risk.

Outcome: Delivered secure self-service onboarding and near real-time DynamoDB-to-Postgres synchronization with low operating cost.