I will fix bugs and maintain legacy or vibe coded systems

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D
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Bruno Mello
fix bugs and maintain legacy or vibe coded systems
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fix bugs and maintain legacy or vibe coded systems

About this gig

I specialize in maintaining, fixing, and stabilizing legacy systems and vibe-coded projects that grew without proper architecture.

If your system:

  • nobody fully understands anymore
  • breaks randomly
  • was built fast and never cleaned up
  • has bugs that come back
  • is scary to change or upgrade

I step in, understand the system, and make it stable, predictable, and maintainable.

This is not cosmetic refactoring.

My focus is real impact: fewer bugs, better performance, safer changes.

What I can help you with

  • Fixing production bugs and crashes
  • Analyzing logs, stack traces, and error patterns
  • Maintaining legacy codebases
  • Refactoring messy or rushed code safely
  • Performance and memory optimization
  • REST API fixes and improvements
  • Dependency and framework upgrades
  • Explaining undocumented code
  • Reducing technical debt (without rewriting everything)

Common Tech Stack

  • Java 1121
  • Spring / Spring Boot
  • REST APIs
  • SQL / JPA / Hibernate
  • Legacy systems with little or no documentation

(Other stacks can be discussed before ordering)



Why choose me

  • Senior engineer mindset
  • Used to critical and legacy systems
  • Focus on stability and long-term impact
  • Clear, technical communication
  • No new spaghetti code


  • Programming language

    • Java

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Localization
    • Performance
    • Security

  • Frontend framework

    • React.js
    • AngularJS
    • Vue.js
    • jQuery
    • Tailwind CSS

  • Backend framework

    • Django
    • Spring
    • Express.js
    • Node.js
    • Flask

Get to know Bruno Mello

Bruno Mello

Java, Minecraft plugin developer

  • FromBrazil
  • Member sinceOct 2024

  • Languages

    English, Portuguese
High-performance Minecraft plugin developer with experience in large international production servers. I build scalable systems for Paper, Spigot, and Folia using modern Java (8–21). Specialized in custom gameplay mechanics, advanced GUIs, database integrations, and performance optimization. I bring enterprise-level engineering standards to Minecraft ecosystems, ensuring stability, scalability, and long-term maintainability.

Other Software Development Services I Offer

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