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I will do java bug fixing and refactor your android app code
Javier G.H.
About this gig
Are you struggling with a bug in your Java application or need a new feature for your Android app?
I am a backend and mobile developer specializing in Java, native Android, and relational databases. Whether you need to fix a crashing app, optimize your database operations, or refactor your code using proper Object-Oriented Programming (OOP) principles and design patterns, I am here to help.
What I offer in this Gig:
- Bug fixing in Java desktop or Android mobile applications.
- Code refactoring applying standard Design Patterns (Builder, Strategy, Observer, etc.).
- Integration and optimization of local databases (SQLite).
- UI adjustments and background service implementations (such as floating overlay services).
Why choose me? I focus on writing clean, maintainable, and well-commented code. I make sure to understand your exact requirements to deliver a functional, highly decoupled solution.
Please message me before placing an order so we can discuss your specific project needs!
Get to know Javier G.H.
Javier G.H.
o Java bug fixing and refactor your Android app code
- FromPeru
- Member sinceJul 2026
Languages
Spanish, English
I am a Systems and Informatics Engineering student specializing in backend architecture, database design, and mobile development. With hands-on experience building native Android applications (Java/SQLite), designing polyglot persistence models (PostgreSQL/Oracle), and crafting responsive web layouts, I focus on writing clean, pattern-oriented code. Whether you need Java bug fixing, database optimization, or UI adjustments, I am here to deliver efficient and functional solutions.
FAQ
Do I need to provide the source code?
Yes, you will need to provide the source code repository (GitHub/GitLab) or a ZIP file of the project so I can debug and implement the solution locally.
