I will optimize, secure and fix spring boot application

C
cardiai
C
cardiai
Cardi H.
optimize, secure and fix spring boot application
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optimize, secure and fix spring boot application

About this gig

Are you looking for a professional Spring Boot developer to build scalable and secure backend systems?

I am a backend developer with 11+ years of experience, specializing in Java and Spring Boot. I can help you build high-performance REST APIs, microservices, and enterprise-grade applications.

Will provide:

Spring Boot REST API development

Microservices architecture

Database integration (MySQL, PostgreSQL, MongoDB)

API integration (third-party services)

Bug fixing and performance optimization

Authentication (JWT, OAuth)

Why Me?

11+ years real-world experience

Clean and maintainable code

Fast delivery

100% client satisfaction

Lets discuss your project and build something amazing!

  • Programming language

    • Java

  • Expertise

    • Debugging
    • Performance
    • Security
    • Databases
    • Testing procedures

  • Frontend framework

    • Bootstrap
    • jQuery

  • Backend framework

    • Spring
    • Other

Get to know Cardi H.

Cardi H.

Senior Java Spring Boot Developer and System Architect

  • FromBangladesh
  • Member sinceMar 2026
  • Avg. response time1 hour

  • Languages

    English
Hi, I'm Cardi Hasan, a Senior Software Developer with a passion for building scalable, high-performance systems. I specialize in Java Spring Boot, Microservices architecture, and REST API development. Beyond backend development, I have extensive experience in AI-integrated security systems and video analytics. I focus on writing clean, maintainable code that helps businesses scale efficiently. Whether you need a robust backend or a custom AI solution, I am here to turn your vision into a high-quality reality. Let’s build something great together!

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