This is a highly sophisticated, enterprise-grade SaaS application that provides comprehensive business management capabilities with a focus on HR, project management, and CRM functionality. The architecture is designed for scalability, security, and multi-tenancy, making it suitable for serving multiple companies with different subscription tiers and feature sets.
Framework we used:

• Laravel 10 with PHP 8.2+ as backend, and Laravel Blade: Server-side templating as frontend.
• Multi-tenant SaaS architecture with company-based data isolation
• Role-based access control (RBAC) with granular permissions
• Custom API framework using Froiden RestAPI package
• Event-driven architecture with listeners and observers

Key Dependencies & Integrations

• Authentication: Laravel Fortify, Sanctum
• Database: MySQL with Eloquent ORM
• Queue System: Laravel Queues for background jobs
• Communication: Email, SMS (Twilio), Push notifications (OneSignal)
• PDF Generation: DomPDF
• Excel Processing: Maatwebsite Excel
• Real-time Features: Pusher, Laravel Echo
• Social Login: Laravel Socialite
• Translation: Multi-language support with 25+ languages

Application Structure: Multi-Tenant Architecture

• Company-based isolation: Each company has its own data scope
• Super Admin panel: For managing multiple companies
• Package-based features: Different subscription tiers with feature limitations
• Subdomain support: Each company can have its own subdomain

User Management System

• Dual authentication: UserAuth table for credentials, Users table for profile data
• Role-based permissions: Admin, Employee, Client roles with granular permissions
• Multi-company users: Users can belong to multiple companies
• Two-factor authentication: Email and Google Authenticator support