Youssef S.

Full-Stack Developer | SaaS, AI & Automation | Web & Mobile Apps

I build modern digital solutions using React, Next.js, TypeScript, JavaScript, Node.js, NestJS, React Native, WordPress, Shopify, Supabase, Firebase, PostgreSQL, MySQL, REST, GraphQL, and third-party integrations. I’m a Senior Full-Stack Developer with 8+ years of experience building reliable, scalable, and user-friendly digital products across web, mobile, SaaS, eCommerce, and custom business solutions. I work across the full development lifecycle, from architecture, UI, frontend and backend development to databases, APIs, integrations, deployment, optimization, and ongoing technical support. My experience covers SaaS platforms, MVPs, web and mobile applications, eCommerce, CMS solutions, custom business systems, AI-powered features, and workflow automation. I can also work with existing codebases to add features, resolve issues, improve performance, refactor code, or take over projects that need experienced development support. I can help with: - SaaS platforms, MVPs & custom business applications - React, Next.js & modern frontend development - Node.js & NestJS backend development - React Native apps for iOS & Android - WordPress development & custom CMS solutions - Shopify development & eCommerce solutions - AI integrations & AI-powered functionality - Business process & workflow automation - REST & GraphQL APIs and third-party integrations - Supabase, Firebase, PostgreSQL & MySQL - Authentication, authorization & secure application architecture - Admin panels, dashboards & data-driven interfaces - Multilingual applications & RTL support - SEO & performance optimization - Bug fixing, troubleshooting & production support - Code refactoring, modernization & technical improvements - Feature development for existing applications - Deployment, maintenance & long-term technical support I focus on delivering clean, maintainable, and practical solutions that meet project requirements and deliver real business value. Whether you’re starting a new product, improving an existing application, or looking for reliable long-term development support, I can help turn your requirements into a production-ready solution.