🧑‍💼 Employee Management System API

The Employee Management System API is a backend solution built with ASP.NET Core Web API to manage organizational operations related to employees, departments, attendance, payroll, and reporting. It follows Clean Architecture principles and implements Repository & Unit of Work patterns for clean, maintainable, and scalable data access. The API uses DTOs (Data Transfer Objects) for structured request and response handling, and JWT Authentication with role-based authorization (Admin, Manager, Employee) to ensure data security and access control.

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🧱 Tech Stack

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Framework: ASP.NET Core Web API Database: Microsoft SQL Server ORM: Entity Framework Core Architecture: Clean Architecture Design Patterns: Repository & Unit of Work Authentication: JWT (JSON Web Tokens) Data Models: DTOs (Data Transfer Objects)

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📦 Modules Overview

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🏢 Department Module

• Manages all organizational departments.
• Supports full CRUD operations.
• Each employee is assigned to a specific department.

👥 Employee Module

• Handles all employee-related information.
• Allows creating, updating, and deleting employee records.
• Maintains centralized employee management for HR operations.

🗓️ Leave Management Module

• Employees can submit leave requests.
• Managers can approve or reject requests.
• Simplifies leave request workflow and approval tracking.

⏰ Attendance Module

• Tracks employee check-in and check-out times.
• Generates daily and monthly attendance reports.
• Monitors punctuality and overall working hours.

💰 Payroll Module

• Automates salary calculation and monthly payroll generation.
• Provides payroll reports per employee and organization-wide.
• Reduces manual work and ensures payment accuracy.

🔐 Authentication & Roles Module

• Provides secure login and registration using JWT Authentication.
• Enforces role-based access control with three main roles: 👑 Admin: Full access to all system modules and data. 🧑‍💼 Manager: Approves leaves, manages teams, and reviews reports. 👤 Employee: Manages personal data, requests leaves, views attendance and payroll.
• Ensures data confidentiality and proper system authorization.

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⚙️ Architecture Overview

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EmployeeManagementSystem
│
├── Application
│   ├── DTOs
│   ├── Interfaces
│   └── Services
│
├── Domain
│   ├── Entities
│   └── Enums
│
├── Infrastructure
│   ├── Data
│   ├── Repositories
│   └── UnitOfWork
│
└── API
    ├── Controllers
    ├── Middleware
    └── Configurations

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🚀 Getting Started

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Prerequisites:

• .NET 8 SDK or later
• SQL Server
• Visual Studio or VS Code

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📊 Future Enhancements

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• Email notifications for leave approvals and payroll updates.
• Dashboard with analytics and visual reports for managers and admins.
• Integration with external HR and accounting systems.
• Role-specific notifications and performance tracking.

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👨‍💻 Author

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Name: Tarek Elsabbagh Role: Backend Developer (.NET) Email: tarekelspagh707@email.com