Case Studies
Deep dives into engineering decisions. Each case study explains the problem, requirements, architecture, trade-offs, and lessons learned.
Designing a Cross-Platform Spatial Data Pipeline
Synchronizing real-time spatial data across three enterprise GIS platforms
Three enterprise GIS platforms (INCMS, DCS, and ArcGIS Enterprise) required synchronized spatial data. Manual data entry caused delays, inconsistencies, and a high risk of data integrity violations across 40 million spatial records.
Building a Real-Time Notification System
Sub-second notification delivery using event-driven architecture
The platform needed real-time notifications for payment events, system alerts, and user activities. Existing polling-based approach had noticeable delays and high server load.
Migrating from Monolith to Microservices
Zero-downtime migration of a legacy monolith to AWS microservices
A legacy monolithic application could not scale to handle growing transaction volume. Deployments were risky, scaling was all-or-nothing, and the codebase was becoming unmaintainable.
Integrating Multiple Payment Gateways
A unified payment abstraction for M-Pesa, Stripe, and PayPal
The platform needed to accept payments through M-Pesa (local), Stripe (international cards), and PayPal (global). Each gateway had different APIs, error handling, and webhook patterns. Hardcoding each integration created maintenance burden and made adding new gateways difficult.