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

S
sami_ullah6551
S
sami_ullah6551
Sami Ullah
build scalable full stack web app saas nodejs react flutter
Full Screen
build scalable full stack web app saas nodejs react flutter
Full Screen
View Presentation
build scalable full stack web app saas nodejs react flutterbuild scalable full stack web app saas nodejs react flutterbuild scalable full stack web app saas nodejs react flutter

About this gig

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!

  • Website type

    • Saas

  • Programming language

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

  • Website features

    • Payment
    • Forum
    • Analytics
    • Chat
    • Membership
    • Dashboard
    • Landing page
    • User Authentication
    • Admin Panel
    • API integration
Respect third-party rights

Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.

Get to know Sami Ullah

Sami Ullah

Full Stack and Mobile Engineer, Flutter and Nodejs Specialist

  • FromPakistan
  • Member sinceApr 2025
  • Avg. response time1 hour

  • Languages

    Urdu, English
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.

My Portfolio

Related tags