I will fix, upgrade or modernize your java application

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asad_yaseen6
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asad_yaseen6
Asad Yaseen
fix, upgrade or modernize your java application
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fix, upgrade or modernize your java application

About this gig

Is your Java application broken, outdated, or stuck on an old version?

I specialize in recovering, modernizing, and fixing Java applications from small personal projects to complex production systems with legacy codebases, outdated dependencies, and missing documentation.

With experience maintaining live production Java platforms integrated with external APIs, Docker deployments, and real-time data systems, I bring senior-level problem solving to every project.

I can help with:

Updating Java projects from any version to Java 17, 21, or 25

Fixing compilation errors, runtime crashes, and dependency conflicts

Migrating build systems from Ant to Maven or Gradle

Recovering abandoned or undocumented legacy projects

Spring Boot, JavaFX, and Swing applications

Database integration PostgreSQL, MySQL

Before ordering please share:

Java version and build tool (Maven/Gradle/Ant)

Error messages or logs

Project files or repository link

If your project cannot reasonably be fixed within scope I will tell you honestly before any work begins.

  • Expertise

    • Operating systems
    • Design
    • Databases
    • Source control
    • Testing procedures

  • Programming language

    • Java
    • Kotlin
    • Lua
    • Objective-C
    • PHP
    • Python
    • HTML & CSS
    • ASP.NET
    • C&C++
    • Delphi

  • Frontend framework

    • jQuery
    • Nuxt.js
    • React.js
    • Svelte
    • Tkinter

  • Backend framework

    • Next.js
    • Node.js
    • Quarkus
    • Spring
    • Yii2

Get to know Asad Yaseen

Asad Yaseen

Electronics Engineer, Embedded System Designer, Circuit PCB Designer

  • FromPakistan
  • Member sinceAug 2025

  • Languages

    Urdu
Greetings! I am an accomplished Electronics Engineer with a Master’s degree and currently pursuing a PhD in Electronics in Canada. As the Head of Bamboo's Technology Development and Electronics group, I bring expertise in electronics-based gadget development, embedded systems design, circuit and PCB engineering, & prototyping advanced devices. I have a simple rule: if I accept a project, I’ll ensure it’s completed to the highest standard—no flaws allowed! With years of hands-on experience, I’ve helped bring countless projects to life, and I’m always excited to take on new challenges.

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