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Fiverr Pro
English
$
USD
I will fix javascript and node js bugs and integrate apis
Elton Cruz
About this gig
Are you facing bugs, API errors, webhook failures, or unexpected behavior in your JavaScript or Node.js application?
I can analyze your existing code, identify the root cause, implement the correction, and test the solution.
My services include:
JavaScript and Node.js bug fixing
Express.js backend troubleshooting
REST API integration and troubleshooting
Webhook debugging
Firebase and database issues
Authentication and request errors
Error handling and code improvements
Basic deployment troubleshooting
You will receive organized delivery, clear communication, testing, and a summary of the work completed according to the selected package.
Please contact me before ordering if your project contains multiple unrelated bugs, requires access to a complex environment, or involves a new integration. I will review the scope and recommend the appropriate package or prepare a custom offer.
Sensitive credentials should be shared securely and only when required for the project.
Get to know Elton Cruz
Elton Cruz
Full Stack Developer, Bug Fixing and API Integration
- FromBrazil
- Member sinceJul 2026
Languages
Portuguese, English
I am an IT professional focused on software development, bug fixing, automation, API integrations, and cloud applications. I can analyze existing code, identify errors, improve features, troubleshoot webhooks, integrate systems, configure databases, and deploy applications. I have hands-on experience with JavaScript, Node.js, Express, Firebase, Google Cloud, REST APIs, and WhatsApp automation. I provide organized delivery, testing, clear communication, and technical documentation.
FAQ
1. Do I need to contact you before placing an order?
Yes. Please contact me first, especially if you have multiple bugs, a complex environment, or an API integration. I will review the scope and recommend the correct package.
2. What information do you need to investigate the issue?
Please provide a clear description of the problem, error messages, relevant logs, steps to reproduce the issue, technology stack, and access to the necessary code or test environment.
3. Can you fix any programming language?
I can review different codebases, but this Gig is focused on JavaScript, Node.js, Express.js, APIs, webhooks, and Firebase. Please contact me before ordering projects involving other technologies.
4. What is not included in the packages?
The packages do not include complete application development, multiple unrelated bugs, major architecture changes, or large integrations. These projects require a custom offer.
5. Will you test the correction?
Yes. I will perform tests related to the corrected issue. The level of testing and documentation depends on the selected package.
