Yahia M.

Senior Full-Stack Developer |Next.js, Node.js| SaaS, Payment, API & AI

👋 I help startups and businesses build and scale full-stack web applications, SaaS products, and AI-powered platforms using React, Next.js, Node.js, and modern API integrations like Stripe, PayPal, and OpenAI. With 5+ years delivering secure, high-performance full-stack solutions, I ensure your product is fast, reliable, and built to scale. 🔹 What I Can Help You With Full-stack web app development (React, Next.js, Node.js, TypeScript) SaaS product development (multi-tenant, subscriptions, dashboards) Payment gateway integrations (Stripe, PayPal, Paddle, LemonSqueezy) REST & GraphQL API development and third-party integrations AI integrations (OpenAI, ChatGPT API, RAG, chatbots, document extraction) Workflow automation (n8n, Zapier, Make, Python scripts) Database design & optimization (PostgreSQL, MySQL, MongoDB) 🛠 Tech Stack Frontend: React, Next.js, TypeScript, Tailwind CSS Backend: Node.js, Express.js, NestJS, Laravel Databases: PostgreSQL, MySQL, MongoDB, Firebase, Supabase Payments: Stripe, PayPal, Paddle, webhooks, subscriptions AI & ML: OpenAI API, Hugging Face, LangChain, vector databases Automation: n8n, Zapier, Make, Python DevOps & Tools: Docker, GitHub, GitLab, Vercel, AWS, REST APIs, Swagger ⭐ Why Clients Choose Me Strong communication & fast response Clean, well-structured, production-ready code Full-stack ownership from database to UI Focus on business results, not just code Reliable delivery & long-term collaboration Let's discuss your project and build something solid.