Ariful I.

I am a Senior Full Stack PHP Developer with 9+ years of experience building scalable web applications, cloud infrastructure, and payment-integrated platforms. My expertise includes backend development, **PHP version upgrades, legacy PHP migration, AWS cloud architecture, DevOps automation, and high-performance API integrations**. I help businesses modernize outdated PHP applications, resolve compatibility issues, improve security, and migrate legacy systems to modern PHP versions without disrupting existing functionality. I have worked on enterprise applications, eCommerce systems, SaaS platforms, booking systems, and financial/payment solutions. ### ✓ PHP Upgrade & Legacy Application Migration - PHP Version Upgrade (PHP 5.x, 7.x, 8.0, 8.1, 8.2, 8.3, and newer versions) - Legacy PHP Application Modernization - PHP 5 to PHP 7/8 Migration - PHP 7 to PHP 8 Upgrade - PHP 8 Compatibility Fixes - Deprecated PHP Function Replacement - PHP Fatal Error and Warning Fixes - PHP Application Compatibility Audit - Legacy Code Refactoring and Optimization - PHP Security Updates and Vulnerability Fixes - Composer and Dependency Compatibility - MySQL and Database Compatibility - Apache/Nginx and PHP-FPM Configuration - PHP Application Testing and Deployment ### ✓ Backend Development - PHP - Laravel - CodeIgniter 3 & 4 - REST API Development - MySQL - MVC Architecture ### ✓ Frontend Development - JavaScript - jQuery - AJAX - Bootstrap - HTML/CSS ### ✓ Python & AI Integration - Python and FastAPI - OpenAI and Google Gemini API Integration - AI Workflow Automation - Prompt Engineering - Image Processing and Generation - PDF and Data Extraction - Background Job Processing - Web Scraping and Automation - Vector Database Integration - AI Chatbot Integration - OCR and Document Processing ### ✓ AWS Cloud & DevOps - AWS EC2, RDS, S3, CloudWatch - AWS Lambda and API Gateway - CI/CD Pipeline Setup - Docker and Linux Server Administration - Apache/Nginx Configuration - Deployment Automation - AWS Infrastructure Optimization - Application Migration to AWS - Server Performance Monitoring ### ✓ Payment Gateway Integration - Stripe and PayPal - Subscription Billing - Webhooks - Secure Payment Processing ### ✓ What I Can Help You With - Upgrade legacy PHP applications to modern, supported PHP versions - Migrate PHP 5.x/7.x projects to PHP 8.x - Fix PHP 8 migration errors and deprecated functions - Resolve compatibility issues in Laravel, CodeIgniter, and custom PHP applications - Upgrade outdated PHP websites and backend systems - Fix PHP errors, bugs, and server configuration issues - Improve application security, performance, and maintainability - Modernize legacy code without unnecessarily rewriting the entire application - Optimize MySQL queries and backend performance - Build secure APIs and integrate payment gateways - Deploy and maintain PHP applications on AWS I focus on writing clean, maintainable, and production-ready code, with strong attention to compatibility, security, performance, and scalability. Whether you need a small PHP bug fix, a complete legacy PHP upgrade, a framework migration, or AWS deployment support, I can help you modernize your application with minimal disruption. I am committed to delivering reliable solutions, clear communication, and long-term support for every project. Let's discuss your project and find the right solution for your PHP application.