Complete migration of Magento 2 e-commerce to proprietary Linux VPS. Implementation of Varnish Cache and Redis achieving 99.9% uptime and drastic operational cost reduction. Custom Laravel Middleware integration for KeyInvoice ERP.

Multi-tenant SaaS architecture with 'Database per Tenant' isolation for GDPR compliance. Asynchronous processing of thousands of orders via Laravel Horizon without UI blocking. Reactive dashboards with Next.js and Styled Components.

Key role in 3 major projects: 1) Mental Health Clinic App (Laravel/Blade Monolith); 2) E-commerce ERP with real-time SAP inventory synchronization; 3) Management System for English School Network with multi-branch control.