Kalfou
Comprehensive transportation platform with ride-hailing, package delivery, and food delivery services. Built with microservices architecture featuring 1 API, 3 mobile apps, and 3 web applications.
Timeline
2025-12 — Present
Technologies
Project vision
One platform. Three services.
Kalfou is an ambitious, full-scale transportation and delivery ecosystem designed to serve multiple user segments through a unified platform. The system integrates ride-hailing, package delivery, and food delivery into a cohesive, scalable solution.
2
Services
Grocery/Food · Package
3
Mobile Apps
Customer · Driver · Courier
3
Web Apps
Website · Admin portal · Merchant portal
1
API
Unified microservices backend
System Architecture
Microservices Backend
The Central Web API (ASP.NET Core) acts as the unified gateway for all client applications. Services are separated by domain — User Management, Ride Service, Delivery Service, and Payment Service — communicating asynchronously via Azure Service Bus.
- ✓Unified RESTful API serving all client applications
- ✓Real-time location tracking with SignalR
- ✓JWT-based authentication and authorization
- ✓Rate limiting and API gateway pattern
- ✓Redis caching for sessions and hot data
- ✓PCI DSS compliant payment processing
Mobile Applications
Flutter apps for every role
Three distinct Flutter apps share a common design system and authentication layer, each tailored to a specific user role.
- •Customer App — Request rides, order food, send packages, in-app chat, ratings
- •Driver App — Accept trips, real-time navigation, earnings dashboard, offline mode
- •Delivery App — Accept deliveries, route optimization, proof of delivery (photo/signature)
Web Applications
Three portals, one codebase
- 1Customer Web Portal — Desktop-optimized version of the mobile app with advanced search and booking management
- 2Restaurant Dashboard — Menu management, real-time order tracking, analytics and promotions
- 3Admin Dashboard — Full platform monitoring, user management, fraud detection, and financial reporting
Technical Stack
Built to scale
The infrastructure runs on Azure with Docker containers orchestrated by Kubernetes, enabling horizontal scaling across all services. CI/CD is handled by Azure DevOps with automated testing at every stage.
Database Design
30+ normalized tables with geospatial indexing for real-time location queries. Partitioning strategy handles high-frequency ride and delivery events at scale.
Business Impact
↓
App fatigue
Multi-service in one app
↑
Efficiency
Unified driver/courier pool
↓
Overhead
Centralized admin reduces ops cost
+
Employment
Platform economy creates local jobs
More like this
Related work
web
Tiamshop
A comprehensive e-commerce platform featuring a robust 3-tier architecture with an ASP.NET Core backend and React frontend. Engineered specifically for the Nigerien market, supporting local payment methods and complex delivery logistics.
ai
ClearSheet
Document scanning and OCR web app that detects a page inside a noisy phone photo, corrects perspective, generates a clean scan-style result, and extracts text in French, English, or both.
web
Personal Portfolio
Modern, high-performance portfolio built with Next.js 15, featuring advanced animations, dark/light themes, and full English/French internationalization.