You will get I will fix complex JavaScript business logic within 24 hours
Project details
If you're dealing with complex JavaScript logic issues, calculation errors, or broken business rules, I can help you fix them quickly and cleanly.
I specialize in debugging and structuring logic-heavy applications — especially tools involving financial calculations, APIs, and business workflows.
Unlike typical “quick fixes,” I approach problems with a business mindset. I don’t just patch code — I analyze the logic behind it to ensure accuracy, maintainability, and long-term stability.
This service covers:
• Fixing a specific JavaScript bug
• Resolving incorrect calculations
• Debugging API integration issues
• Repairing broken business logic
Delivery is focused, structured, and efficient — typically within 24 hours for clearly defined issues.
If your problem is specific and well-scoped, this is the right service for you.
I specialize in debugging and structuring logic-heavy applications — especially tools involving financial calculations, APIs, and business workflows.
Unlike typical “quick fixes,” I approach problems with a business mindset. I don’t just patch code — I analyze the logic behind it to ensure accuracy, maintainability, and long-term stability.
This service covers:
• Fixing a specific JavaScript bug
• Resolving incorrect calculations
• Debugging API integration issues
• Repairing broken business logic
Delivery is focused, structured, and efficient — typically within 24 hours for clearly defined issues.
If your problem is specific and well-scoped, this is the right service for you.
Programming Languages
JavaScriptCoding Expertise
Performance Optimization, DesignWhat's included $80
These options are included with the project scope.
$80
- Delivery Time 1 day
- Number of Revisions 1
- Number of Pages 1
- Responsive Design
- Source Code
Optional add-ons
You can add these on the next page.
Additional feature or fix
(+ 1 Day)
+$40
Urgent same-day delivery
+$30Frequently asked questions
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Alan T.
Feb 21, 2025
Script Review and Revision by Native Speakers
About Igor
JS Dev | Financial Tools + APIs
Indaiatuba, Brazil - 6:09 am local time
My work focuses on translating complex business logic into clean, maintainable code — especially in projects involving financial modeling, cross-border operations, and operational workflows.
Recent experience includes:
• Rebuilding a tax and import calculation engine from a complex Excel model into a modular JavaScript system
• Designing cost simulation tools for real-world import/export scenarios
• Integrating APIs to automate reporting and operational processes
• Developing performance-focused websites and business tools
Unlike typical developers, I approach projects with a business mindset. I don’t just fix code — I analyze the underlying logic to ensure precision, scalability, and long-term stability.
If you’re dealing with calculation errors, API integration issues, or complex business rules, send the context and I’ll propose a structured solution.
Steps for completing your project
After purchasing the project, send requirements so Igor can start the project.
Delivery time starts when Igor receives requirements from you.
Igor works on your project following the steps below.
Revisions may occur after the delivery date.
Issue Review
I analyze the problem, review the code, and confirm the scope.
Debug & Fix
I identify the root cause and implement a clean, structured solution.