Husnain A.

# Professional Expertise **Full-Stack Web Development | AI Chatbot Development | OpenAI Integration | WhatsApp Business API | Cloud Solutions** ### Core Expertise * Full-Stack Web Application Development * AI Chatbot Development & Integration * OpenAI API & Generative AI Integration * WhatsApp Business Cloud API * REST API Development & Third-Party API Integration * Laravel & PHP Backend Development * React.js, Next.js & Vue.js Frontend Development * AI-Powered Business Process Automation * Cloud Computing & AWS Infrastructure * OTT Platform & Video Streaming Development * WordPress & Shopify Development * Database Design & Optimization ### Programming Languages * PHP * JavaScript (ES6+) * TypeScript * SQL * HTML5 & CSS3 ### Backend Development * Laravel * CodeIgniter * Node.js * RESTful API Development * API Authentication & Authorization * JWT Authentication * Webhooks & Event-Driven Integrations * MVC & HMVC Architecture * Object-Oriented Programming (OOP) * Queue Processing & Background Jobs * Cron Jobs & Scheduled Tasks ### Frontend Development * React.js * Next.js * Vue.js * Angular & AngularJS * jQuery * Responsive Web Design * API Integration * Modern JavaScript & TypeScript ### AI, Chatbots & Automation * OpenAI API * AI Chatbot Development * Conversational AI * LLM Integration * AI Agents & Tool Calling * Prompt Engineering * Retrieval-Augmented Generation (RAG) * Vector Database Integration * Knowledge Base Chatbots * WhatsApp AI Assistants * Automated Lead Capture & Appointment Booking * AI-Powered Customer Support * Webhooks & Workflow Automation * Twilio Integration * ElevenLabs Voice AI Integration ### WhatsApp & Messaging Integrations * WhatsApp Business Platform * WhatsApp Cloud API * Meta Embedded Signup * WhatsApp Message Templates * Webhook Configuration * Incoming & Outgoing Messages * Media Uploads & Downloads * Message Status Tracking * Business Profile Integration * Third-Party Messaging APIs * Twilio API Integration ### Databases & Background Processing * MySQL * MongoDB * Redis * Beanstalkd Queue Server * Database Architecture & Optimization * Data Modeling * Asynchronous Job Processing ### Cloud, DevOps & Hosting * Amazon Web Services (AWS) * Amazon EC2 * Amazon RDS * Elastic Load Balancing (ELB) * Amazon S3 * AWS Lambda * Linux Server Administration * Apache & Nginx * Ubuntu & Amazon Linux * PHP-FPM * SSL/TLS & HTTPS Configuration * DNS & Domain Management * Cloud Hosting & Deployment * SSH, FTP & cPanel * Git & Git-Based Deployment ### CMS & E-commerce * WordPress Development * Custom WordPress Plugins * WordPress API Integration * WooCommerce * Shopify Development * CMS Customization * Booking & Reservation Systems * Payment Gateway Integration * PayPal, Stripe & Braintree ### OTT & Video Streaming * OTT Platform Development * Bitmovin Video Encoding * HLS & MPEG-DASH * Digital Rights Management (DRM) * Video Streaming APIs * Electronic Program Guide (EPG) * XML Integration * Amazon S3 Media Storage * Cloud-Based Video Workflows ### API Testing, Security & Quality * Postman * REST API Testing * API Debugging & Troubleshooting * JWT & Token-Based Authentication * Webhook Testing * Application Debugging * Integration Testing * Git & Version Control ### Software Engineering & Project Management * Software Design Patterns * Data Structures & Algorithms * Agile & Scrum * Waterfall Methodology * Jira * Technical Documentation * Problem-Solving & Troubleshooting * Cross-Functional Collaboration ### Additional Technical Knowledge * Android & iOS Application Integration * IoT Integration * Networking Fundamentals * Microsoft Office * NetBeans IDE