Python (FastAPI) · React 18 · PostgreSQL 16 · Redis · Docker

• Multi-tenant ERP covering the full business cycle: Accounting & Finance, Sales, Procurement, Inventory, CRM, Fixed Assets, Business Intelligence and Administration
• Double-entry accounting with integer-cent precision, multi-currency, tax rates, and printable financial reports (Trial Balance, P&L, Balance Sheet, Cash Flow)
• Role-based access control (RBAC) with row-level tenant isolation, audit trail, and a formal 'Lockdown Kernel' verification layer
• Production-grade architecture — Nginx load balancing, Gunicorn + Uvicorn API replicas, Docker Swarm, Prometheus/Grafana/Loki/Sentry monitoring
• 457+ backend tests, Vitest frontend tests, Playwright E2E, Locust load testing; PWA with full dark mode, offline shell, and guided onboarding tours

HTML, CSS, Vanilla JS, Python

• Built an interactive web interface for a chart-based trading chatbot with dynamic chart rendering
• Integrated Python backend for technical analysis, signal generation, and bot responses
• Ensured cross-browser compatibility and fully responsive design across devices

Node.js (Express), MongoDB, React.js

• Full-stack platform for managing and delivering forex trading signals with user authentication and subscription tiers
• Real-time notifications via WebSockets, trading journal, activity logging, and an admin dashboard
• Chat functionality between users and admins, plus personalised notification preferences

Electron.js, SQL.js, HTML, CSS, Vanilla JS

• Offline-first desktop invoicing and inventory system running natively on Windows with no internet required
• Multi-role authentication (Admin / User) with recovery codes, full audit log, and secure local SQLite database
• Modules for customers, products, invoices, delivery notes, and business settings — all with PDF export

PHP (Core), MySQL, JavaScript, CSS

• Full ISP back-office platform handling subscribers, support tickets, device tracking, and cable roll inventory
• Real-time call detection API, GPS-based field technician coordination with Google Maps integration
• PWA-enabled for mobile field use; deployed on shared hosting with .htaccess routing and session management

Node.js (Express), PostgreSQL, React.js, Socket.io

• QR-code-driven table ordering system — customers scan, browse a 3D-model menu, and place orders instantly
• Real-time kitchen/waiter notifications via Socket.io; full session, payment, and role-based staff management
• RESTful API with JWT auth, rate limiting, Helmet security headers, and Africa's Talking SMS integration

React.js, Vite, hls.js, Nginx, Docker

• Progressive Web App for live IPTV streaming using HLS.js with offline caching via service workers
• Dockerised deployment with Nginx reverse proxy; configured and maintained on Ubuntu server via CLI
• Custom authentication flow, M3U playlist management, and EPG schedule support

HTML, CSS, Vanilla JS, PHP (Core)

• Multi-role platform for admins, trainers, and clients with secure authentication and real-time messaging
• CRUD for users, workouts, and classes; trainer search, progress tracking, and profile image uploads