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Fiverr Pro
English
$
USD
I will fix bugs in your python, java or backend code fast
Sebastian S
About this gig
Do you have a bug in your code that you can't fix?
I will quickly identify and fix issues in your backend or application.
I work with:
- Python (Django, scripts, OOP)
- Java (Spring Boot, Swing, OOP)
- Webs and backend systems
- SQL and databases
What I fix:
- Errors and crashes
- Web issues
- Database problems
- Logic bugs
- Performance issues
Why me:
- Fast delivery (24h available)
- Clear communication
- Clean and optimized solutions
Send me your issue before ordering and I will review it!
Get to know Sebastian S
Sebastian S
Backend Developer
- FromColombia
- Member sinceSep 2025
Languages
English, Spanish, German
💻 System Engineer | Back-End Developer | Data Analyst
I have knowledge in back-end development and data analysis using Python (Django), Java (Spring), and SQL databases (Oracle, PostgreSQL).
My expertise includes:
Python scripting for data processing & analysis
Web back-end solutions with Django & Java
Database design, modeling & management
Python and Java OOP programming development
Basic cybersecurity & cryptography practices
I deliver efficient, scalable, and secure solutions tailored to your needs.
FAQ
What do you need to start fixing my bug?
I will need access to your code (GitHub, ZIP file or snippet), a clear description of the issue, and any error messages or screenshots. The more details you provide, the faster I can fix it.
How fast you can deliver?
Most small bugs are fixed within 24 hours. Urgent delivery is available—just message me before placing the order.
What if my issue is more complex than expected?
If the issue is more complex, I will inform you immediately and suggest the best solution depending your problem and your needs.
Do you provide explanations of the fix?
Yes, I can explain what caused the issue and how it was fixed so you can avoid similar problems in the future.
Will my code remain confidential?
Absolutely. Your code and project details will remain private and will not be shared to anyone.
Do you fix frontend issues?
I mainly focus on backend and logic issues. However, I can assist with minor frontend-related problems if they are very basic or connected to backend functionality.
