Scaling a FinTech Payment Gateway with FastAPI
Client: SwiftPay Global
The Problem
The client needed to handle a 300% increase in transaction volume while reducing latency to under 50ms to maintain partner SLAs.
The Solution
We deployed a POD of 4 senior Python engineers who migrated the core logic to FastAPI, utilizing asynchronous database drivers and an AI-based fraud scoring engine.
Key Outcomes
- Latency reduced from 280ms to 35ms
- System capacity increased by 500%
- Zero security breaches in 24 months










