I will build scalable full stack web app saas nodejs react flutter

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sami_ullah6551
S
sami_ullah6551
Sami Ullah
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build scalable full stack web app saas nodejs react flutter
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Looking for a high-performance full-stack web app or custom SaaS platform? I am Sami, a Senior Software Engineer specializing in building robust, production-ready web platforms using Next.js, React, Node.js, and MongoDB.


From enterprise digital wallet ecosystems (like KARDZ and CardlySa) to high-speed subscription platforms, I engineer clean, secure, and maintainable systems aligned with modern digital standards.


What I Build & Integrate:


  • Full-Stack Web Apps: Responsive React/Next.js frontends paired with high-performance Node.js backends.
  • SaaS Platforms & Admin Panels: User management, analytics dashboards, and fine-grained RBAC permissions.
  • Payment & Wallet Systems: MyFatoorah gateway integration, automated subscription engines, and Apple/Google Wallet APIs.
  • Real-Time Tech & Cloud Pipelines: Webhooks, Socket.IO, Kafka event streams, and AWS S3 asset management.


Why Work With Me?


  • Production experience architecting ecosystems with published developer tools on pub.dev.
  • Clean, modular codebase ready for scaling and investment.
  • Complete end-to-end delivery: DB architecture, REST APIs, UI, and deployment.


Please message me with your project scope before ordering!

  • Tipo de sitio web

    • SaaS

  • Lenguaje de programación

    • HTML y CSS
    • JavaScript
    • TypeScript
    • React
    • Node.js

  • Funciones del sitio web

    • Pago
    • Foro
    • Análisis
    • Chat
    • Membresía
    • Tablero
    • Landing page
    • Autenticación de usuario
    • Panel de administración
    • Integración API
Respeta los derechos de terceros

Recuerda que incluir temas, plantillas o cualquier otro elemento que viole los derechos de terceros o las leyes aplicables en los trabajos entregados va en contra de las políticas de Fiverr. Puedes ver más información en Guía para la creación digital responsable.

Conoce a Sami Ullah

Sami Ullah

Full Stack and Mobile Engineer, Flutter and Nodejs Specialist

  • DePakistán
  • Miembro desdeabr 2025
  • Responde aprox. en:1 hora

  • Idiomas

    Urdu, Inglés
Hi! I'm Sami, a Full-Stack & Mobile Engineer with 3+ years building enterprise applications. I engineer scalable cross-platform mobile apps (iOS/Android), web platforms, and cloud backends. Tech Stack: • Mobile/Web: Flutter, React.js, Next.js, React Native • Backend/Cloud: Node.js, Express, MongoDB, REST APIs, AWS S3 • Real-Time/IoT: Socket.IO, MQTT, Kafka, C++ • Integrations: MyFatoorah, Stripe, Apple/Google Wallet Why work with me? • Clean architecture & 100% responsive UI • Apps scaled to 10K+ downloads & open-source packages Let's discuss your project! Send a message to get started.

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