Work
Each of these is a production system I designed and built end to end — the problem it solves, the architecture behind it, and the specific decisions that made it correct under load.
Mezani
2025–2026Multi-tenant restaurant operating system
Independent restaurant groups needed a single platform to run QR ordering, kitchen display, and analytics across multiple branches — without each tenant's data, staff, or traffic interfering with another's.
StylerStack
2024–2025Fashion e-commerce API with M-Pesa payments
A fashion marketplace needed to accept mobile money payments reliably — without risking duplicate charges from retried requests or unverified payment callbacks.
Restaurant Analytics Platform
2025Cloud-native, event-driven analytics on GCP
Restaurant operators have order data, but turning it into revenue and volume trends usually means a manual export-and-spreadsheet routine that lags behind the business.
Mgari
2024Car rental booking engine
Two customers booking the same vehicle for overlapping dates at the same moment is the one failure a rental platform cannot tolerate — and availability needs to reflect where a car actually is.