Hasan N.

Senior Full-Stack Developer with 12+ years in Next.js, PHP and Laravel, specializing in AI agent integration. I add AI agents, chatbots and LLM features to real products, and I build the web apps and APIs behind them. Top Rated, 100% Job Success WHAT I CAN HELP YOU WITH - Custom SaaS development and web applications (Laravel, React, Next.js, Node.js) - AI agent development, chatbot integration and LLM / OpenAI API features connected to your own data - REST API, webhook and third-party API integrations (Stripe, PayPal, QuickBooks, Shopify, CRMs, analytics tools) - Supabase, PostgreSQL and MySQL: database design, authentication, storage and performance optimization - Admin panels, dashboards, reporting and multi-user role and permission systems - Laravel and React code reviews, bug fixing, performance tuning and legacy code modernization - Secure deployment and DevOps on AWS (EC2, S3, RDS) with Docker, Linux, Nginx and CI/CD (GitHub Actions) TECH STACK Frontend: React.js, Next.js, JavaScript (ES6+), Blade, HTML5, CSS3, Bootstrap Backend: Laravel, PHP, Node.js, REST APIs, webhooks Databases: PostgreSQL, MySQL, Supabase AI and Automation: LLM APIs, AI agents, chatbot integrations, workflow automation Cloud and DevOps: AWS, Docker, Linux, Nginx, GitHub Actions Integrations: Stripe, PayPal, QuickBooks, Shopify, CRMs and custom third-party APIs CASE STUDIES 1) OrderCircle: B2B wholesale order management platform The challenge: wholesale businesses needed customers, orders and invoicing in one secure system that also connects to the accounting, e-commerce and payment tools they already use. What I delivered: production-ready backend work with multi-account access, role-based permissions and API integrations with tools such as QuickBooks, Shopify and Stripe. The outcome: a dependable platform where wholesale teams manage orders and customers in one place instead of juggling spreadsheets and disconnected apps. 2) HomestayMatch: two-sided matching platform for international students and host families The challenge: connect students with suitable host families through a clear, trustworthy online process. What I delivered: user accounts for different roles, structured application and onboarding forms, and the matching and search logic behind them. The outcome: a simpler, more organized way for students and hosts to find each other and get started. More of my work includes projects for Guitar Center and Genre. WHY CLIENTS HIRE ME - 12+ years of production Laravel, PHP, React and full-stack experience - 3,200+ Upwork hours with a 100% Job Success score and Top Rated badge - Experience across SaaS, marketplaces, e-commerce, healthcare, fitness, auction systems and corporate platforms - Clear communication, regular updates and honest advice on trade-offs - Ownership from planning and architecture through deployment and long-term support - Clean, maintainable, performance-focused code that is ready for production, not just a demo Whether you need a new product built from scratch, an AI agent or integration added to an existing app, or a Laravel or React project fixed and scaled, I can manage the full development lifecycle. Send me a message or invite me to your project and tell me what you are trying to build.