// PROJECTS

Open source & production work

Public repositories and shipped systems. Proprietary work lives in the case studies section — full architectural breakdowns with diagrams and stack rationale.

dotnet_microservices

Production-grade .NET microservices reference architecture with service discovery, async messaging, and distributed tracing.

.NET
C#
Docker
RabbitMQ
PostgreSQL

valr-orderbook

High-throughput order book engine for a cryptocurrency exchange, implementing price-time priority matching.

Go
Redis
WebSocket
Finance

micro-erp-backend

Modular ERP backend with inventory, invoicing, and staff management modules built for small-to-medium enterprises.

.NET
PostgreSQL
REST
Docker

whatido

Service marketplace connecting skilled tradespeople with clients — handles listing, booking, and escrow-style payments.

Node.js
TypeScript
PostgreSQL
M-Pesa

Pendo-RMIS

Road Maintenance Information System for tracking infrastructure work orders, asset conditions, and field reporting.

.NET
PostgreSQL
React
GIS

// CASE STUDIES

Flagship systems — deep dives

Full architectural breakdowns with diagrams, approach notes, and stack rationale.

Case study

Multi-Tenant Scheduling SaaS

A horizontally scalable booking platform serving multiple clinic tenants with WhatsApp reminders and M-Pesa payments.

.NET 8
ASP.NET Core
C#
PostgreSQL
Redis
+7

Case study

Notitia — Observability & Reporting

An internal observability and PDF reporting platform that replaced ad-hoc spreadsheets with structured, automated reports.

C#
.NET 8
ASP.NET Core
PostgreSQL
Dapper
+3

Case study

Matatu Digital Signage

IoT-driven digital signage system for Kenyan public transit (matatu) fleets, delivering route and ad content over MQTT.

Raspberry Pi
Python
Linux
MQTT
Mosquitto Broker
+7