I will build your saas web application and chrome extension

M
marhoosh666
M
marhoosh666
Li B
build your saas web application and chrome extension
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build your saas web application and chrome extension

About this gig

Hi! I am a full-stack developer specializing in building modern web applications, SaaS products, and browser extensions.


I can help you turn your idea into a functional and scalable product, including:


Full-stack web applications

SaaS MVP development

React frontend development

Spring Boot backend development

REST API development

Admin dashboards and management systems

User authentication and authorization

Payment integration (Stripe, PayPal)

Chrome browser extensions

Third-party API integration

Deployment and server setup


My technology stack:

Frontend: React, JavaScript, TypeScript, HTML, CSS

Backend: Java, Spring Boot

Database: MySQL, PostgreSQL

Tools: Docker, Git, REST API


I focus on writing clean, maintainable code and building solutions that match your business needs.


Before placing an order, please contact me to discuss your requirements and project details.


Let's build your idea into reality!

  • Website type

    • Saas

  • Programming language

    • Java
    • TypeScript
    • React
    • Tailwind CSS

  • Website features

    • Payment
    • Analytics
    • Membership
    • Dashboard
    • Reviews
    • Landing page
    • Blog
    • User Authentication
    • Admin Panel
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 Li B

Li B

FullStack Engineer

  • FromChina
  • Member sinceJul 2026
  • Avg. response time1 hour

  • Languages

    Chinese, English
I am a Full-Stack Engineer with extensive experience in building scalable online education platforms. I specialize in Java Spring Boot for backend architecture and React for frontend development, with a strong focus on performance optimization and implementing complex business logic through design patterns.

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