SplashRecruit

Multi-Tenant Applicant Tracking System (ATS)

A complete, production-ready ATS built with pure PHP and MySQL. Designed for scalability, security, and ease of use.

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Table of Contents

• Features
• Requirements
• Installation
• Configuration
• Database Setup
• Usage
• API Documentation
• Testing
• Deployment
• Architecture
• Security
• License

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Features

Core ATS Features

• ✅ Multi-Tenant Architecture - Complete tenant isolation with subscription management
• ✅ Job Management - Create, publish, and manage job postings
• ✅ Candidate Management - Track candidates with CV uploads and tagging
• ✅ Application Pipeline - Customizable recruitment stages with drag-and-drop
• ✅ Interview Scheduling - Schedule and manage interviews with multiple interviewers
• ✅ Evaluations & Feedback - Collect structured feedback from interviewers
• ✅ Email Notifications - Automated and manual email templates
• ✅ Public Career Pages - Branded career sites per tenant
• ✅ Advanced Search & Filtering - Find candidates and jobs quickly
• ✅ Activity Logging - Complete audit trail

Technical Features

• ✅ Custom MVC Framework - Lightweight, beginner-friendly architecture
• ✅ RESTful API - Integration with external job boards and systems
• ✅ Role-Based Access Control - 7 distinct user roles
• ✅ Subscription & Billing - Plan management with quota enforcement
• ✅ File Upload System - Secure CV/document management
• ✅ CSRF Protection - Security tokens on all forms
• ✅ Password Hashing - Industry-standard bcrypt
• ✅ Responsive Design - Mobile-friendly interface

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Requirements

Minimum Requirements

• PHP: 7.0 or higher (tested up to PHP 8.3)
• MySQL: 5.7+ or MariaDB 10.2+
• Web Server: Apache 2.4+ or Nginx 1.10+
• PHP Extensions:
  • PDO (pdo_mysql)
  • mbstring
  • openssl
  • json
  • fileinfo

Recommended

• PHP 8.0+ for better performance
• MySQL 8.0+ for improved query optimization
• 2GB RAM minimum
• SSL certificate for production

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Installation

1. Clone the Repository

git clone https://github.com/ahmedsaadawi13/splashrecruit.git
cd splashrecruit

2. Configure Web Server

Apache (.htaccess already configured)

<VirtualHost *:80>
    ServerName splashrecruit.local
    DocumentRoot /path/to/splashrecruit/public

    <Directory /path/to/splashrecruit/public>
        AllowOverride All
        Require all granted
    </Directory>
</VirtualHost>

Nginx

server {
    listen 80;
    server_name splashrecruit.local;
    root /path/to/splashrecruit/public;

    index index.php;

    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }

    location ~ \.php$ {
        fastcgi_pass unix:/var/run/php/php8.0-fpm.sock;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }

    location ~ /\.ht {
        deny all;
    }
}

3. Set File Permissions

chmod -R 755 /path/to/splashrecruit
chmod -R 775 storage/uploads
chmod -R 775 storage/logs

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Configuration

1. Create Environment File

cp .env.example .env

2. Edit .env File

# Application
APP_NAME="SplashRecruit"
APP_ENV=production
APP_URL=https://yourdomain.com
APP_DEBUG=false

# Database
DB_HOST=localhost
DB_NAME=splashrecruit
DB_USER=your_db_user
DB_PASS=your_db_password

# Mail
MAIL_FROM_ADDRESS=noreply@yourdomain.com
MAIL_FROM_NAME="SplashRecruit"

# Session
SESSION_LIFETIME=7200

# Timezone
APP_TIMEZONE=UTC

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Database Setup

1. Create Database

mysql -u root -p

CREATE DATABASE splashrecruit CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
CREATE USER 'splashrecruit'@'localhost' IDENTIFIED BY 'your_password';
GRANT ALL PRIVILEGES ON splashrecruit.* TO 'splashrecruit'@'localhost';
FLUSH PRIVILEGES;
EXIT;

2. Import Schema

mysql -u splashrecruit -p splashrecruit < database.sql

This will create all tables and insert seed data including:

• 3 subscription plans (Starter, Professional, Enterprise)
• Platform admin user
• 2 demo tenants (TechCorp, InnovateLabs)
• Demo users, jobs, candidates, and applications
• Default email templates
• Default recruitment pipelines

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Usage

Demo Credentials

After importing the database, you can log in with:

Platform Admin:

• Email: admin@splashrecruit.com
• Password: password123 (change immediately!)

TechCorp Tenant Admin:

• Email: sarah@techcorp.com
• Password: password123

TechCorp Recruiter:

• Email: mike@techcorp.com
• Password: password123

User Roles

1. platform_admin - System-wide access, tenant management
2. tenant_admin - Full access within their tenant
3. recruiter - Manage jobs, candidates, applications
4. hiring_manager - Review candidates, provide feedback
5. interviewer - Conduct interviews, submit evaluations
6. hr_assistant - Support recruiters with screening
7. viewer - Read-only access

Public Career Pages

Access tenant career pages at:

https://yourdomain.com/careers/{tenant-slug}

Example:

https://yourdomain.com/careers/techcorp-solutions

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API Documentation

Authentication

All API requests require an API key passed via header or query parameter:

# Header method
curl -H "X-API-KEY: your_api_key" https://yourdomain.com/api/jobs

# Query parameter method
curl https://yourdomain.com/api/jobs?api_key=your_api_key

Endpoints

1. List Jobs

GET /api/jobs

Parameters:

• department (optional) - Filter by department
• location (optional) - Filter by location
• type (optional) - Filter by employment type

Response:

{
  "success": true,
  "data": [
    {
      "id": 1,
      "title": "Senior Software Engineer",
      "slug": "senior-software-engineer",
      "reference_code": "TC-SSE-001",
      "department": "Engineering",
      "location_city": "San Francisco",
      "location_country": "USA",
      "employment_type": "full_time",
      "description": "...",
      "published_at": "2025-01-15 10:00:00",
      "apply_url": "https://yourdomain.com/careers/techcorp/jobs/senior-software-engineer"
    }
  ]
}

2. Create Application

POST /api/applications

Headers:

X-API-KEY: your_api_key
Content-Type: application/json

Body:

{
  "job_reference": "TC-SSE-001",
  "first_name": "John",
  "last_name": "Doe",
  "email": "john.doe@example.com",
  "phone": "+1-555-1234",
  "city": "New York",
  "country": "USA",
  "source": "job_board"
}

Response:

{
  "success": true,
  "message": "Application submitted successfully.",
  "data": {
    "application_id": 123,
    "candidate_id": 456
  }
}

3. Get Application Status

GET /api/applications/{application_id}/status

Response:

{
  "success": true,
  "data": {
    "application_id": 123,
    "status": "in_review",
    "applied_at": "2025-01-20 14:30:00",
    "last_updated": "2025-01-21 10:15:00"
  }
}

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Testing

Manual Testing Checklist

Authentication

• Login with valid credentials
• Login with invalid credentials
• Logout functionality
• Session persistence

Multi-Tenant Isolation

• User can only see their tenant's data
• Cannot access other tenant's resources via URL manipulation
• Platform admin can view all tenants

Job Management

• Create new job
• Edit existing job
• Publish/unpublish job
• View job applications
• Delete job

Candidate Management

• Add candidate manually
• Upload CV
• View candidate profile
• Add tags to candidate

Application Pipeline

• Move candidate between stages
• View stage history
• Filter by stage

Public Career Page

• View published jobs
• Submit application with CV upload
• Receive acknowledgement email

API

• List jobs via API
• Create application via API
• Check application status via API

Basic Test Script

Create /tests/connection_test.php:

<?php
require_once __DIR__ . '/../config/app.php';
require_once __DIR__ . '/../app/core/Database.php';

try {
    $db = Database::getInstance();
    echo "✓ Database connection successful!\n";

    // Test query
    $db->query("SELECT COUNT(*) as count FROM tenants");
    $result = $db->fetch();
    echo "✓ Found {$result['count']} tenants in database\n";

    echo "\nAll tests passed!\n";
} catch (Exception $e) {
    echo "✗ Error: " . $e->getMessage() . "\n";
}

Run:

php tests/connection_test.php

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Deployment

Production Checklist

1. Security:

   • Change all default passwords
   • Set APP_DEBUG=false in .env
   • Enable HTTPS/SSL
   • Configure firewall rules
   • Restrict database access

2. Performance:

   • Enable OPcache in PHP
   • Configure MySQL query cache
   • Set up CDN for assets
   • Enable gzip compression

3. Backups:

   • Set up automated database backups
   • Back up /storage/uploads directory
   • Test restore procedures

4. Monitoring:

   • Set up error logging
   • Monitor disk space (uploads folder)
   • Track application performance
   • Set up uptime monitoring

Cron Jobs (Optional)

For sending pending email notifications:

# Send pending notifications every 5 minutes
*/5 * * * * php /path/to/splashrecruit/cron/send_notifications.php

Create /cron/send_notifications.php:

<?php
require_once __DIR__ . '/../config/app.php';
require_once __DIR__ . '/../app/core/Database.php';
require_once __DIR__ . '/../app/models/Notification.php';
require_once __DIR__ . '/../app/helpers/Mailer.php';

$notificationModel = new Notification();
$pending = $notificationModel->getPending(50);

foreach ($pending as $notification) {
    // Process and send
    $notificationModel->markAsSent($notification['id']);
}

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Architecture

MVC Structure

app/
├── core/           # Framework core (Router, Controller, Model, etc.)
├── controllers/    # Request handlers
├── models/         # Database models
├── views/          # HTML templates
└── helpers/        # Utility classes

config/             # Configuration files
public/             # Web root
├── index.php       # Front controller
└── assets/         # CSS, JS, images

storage/
├── uploads/        # User uploaded files
└── logs/           # Application logs

Request Flow

1. All requests go to public/index.php
2. Router matches URL to controller method
3. Controller loads models and processes request
4. Controller renders view or returns JSON
5. Response sent to client

Database Design

• Tenant Isolation: All main tables include tenant_id
• Foreign Keys: Enforced for data integrity
• Indexes: Optimized for common queries
• UTC Storage: All timestamps stored in UTC

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Security

Implemented Protections

1. SQL Injection: Prepared statements via PDO
2. XSS: Output escaping in views via View::e()
3. CSRF: Token validation on all POST requests
4. Password Security: bcrypt hashing
5. File Upload Security:
   • MIME type validation
   • Extension whitelisting
   • Size limits
   • Non-executable storage location
6. Session Security:
   • Secure session handling
   • Session regeneration on login
   • Timeout enforcement

Security Best Practices

• Never commit .env files
• Regularly update PHP and MySQL
• Use HTTPS in production
• Implement rate limiting for API endpoints
• Regular security audits
• Keep file permissions strict

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Future Enhancements

Potential features for future versions:

• Real-time notifications (WebSockets)
• Advanced reporting and analytics
• Resume parsing (AI/ML)
• Video interview integration
• Mobile apps (iOS/Android)
• Slack/Teams integration
• GDPR compliance tools
• Advanced search (Elasticsearch)
• Multi-language support (i18n)

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Code Review Summary

Strengths

• ✅ Clean, readable code with consistent naming
• ✅ Strong multi-tenant isolation
• ✅ Comprehensive CRUD operations
• ✅ Security-first approach
• ✅ Well-documented database schema
• ✅ Beginner-friendly structure

Recommendations

1. Indexes: Add composite indexes for frequently joined columns
2. Caching: Implement Redis/Memcached for session storage
3. Full-Text Search: Use MySQL full-text or Elasticsearch for better candidate search
4. Email Service: Integrate real SMTP service (SendGrid, Amazon SES)
5. File Storage: Consider S3 for scalability
6. Rate Limiting: Add API rate limiting to prevent abuse
7. Unit Tests: Add PHPUnit tests for critical business logic

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Support

For issues, questions, or contributions:

• Issues: https://github.com/ahmedsaadawi13/splashrecruit/issues
• Email: ahmed.sha3ban13@gmail.com
• Documentation: https://docs.splashrecruit.com

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License

This project is open-source software licensed under the MIT License.

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Built with ❤️ for recruiters and developers

SplashRecruit - Making recruitment simple and powerful