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Fiverr Pro
English
$
USD
I will debug, refactor, and fix your nodejs express and javascript code
About this Gig
IMPORTANT: Please message me before placing an order. We must review your codebase and requirements first to ensure we are a good fit before the gig timer begins.
Is your Node.js backend acting up, throwing unhandled errors, or running slow queries? I specialize in auditing, debugging, and refactoring pure JavaScript, Express.js APIs, and SQLite databases.
What I Will Inspect in Your Code:
- Unhandled try/catch errors and server crash points.
- Redundant or unoptimized SQLite database queries.
- Outdated dependencies and performance bottlenecks.
- Missing input validation (Zod) and weak security configurations.
- Messy, hard-to-maintain asynchronous structures.
️ My "Zero-Issue" Guarantee:
I want to ensure you get absolute value. If I audit your script or codebase and find zero bugs, logical flaws, performance bottlenecks, or security improvements to make, I will cancel the transaction immediately so you get a 100% refund.
What You Receive:
Clean, refactored, and strictly-linted JavaScript code, along with detailed comments explaining what was optimized and why.
Let's get your backend running cleanly. Send me a message with your code details to get started!
Development technology:
JavaScript
Expertise:
Clean Code
•
Error handling
•
Other
My Portfolio
FAQ
Why is it necessary to message you before placing an order?
Reviewing your code beforehand ensures we are on the exact same page. It allows me to confirm that your tech stack matches my expertise (Node.js/Express/SQLite), estimate the complexity of the fix, and avoid accidental bookings on busy days.
How does your "Zero-Issue" guarantee work?
If I review your codebase or script and find absolutely no bugs, performance bottlenecks, unhandled errors, or security improvements to make, I will initiate a mutual cancellation on Fiverr. You will receive a 100% refund. You pay nothing if your code is already solid.
Which technologies and languages do you work with?
I specialize in pure JavaScript, Node.js backends, Express.js APIs, and SQLite database schemas.
Will my code and project details be kept confidential?
Yes, absolutely. Your codebase is treated with strict privacy and will never be shared, published, or reused. For security purposes, I highly recommend removing any sensitive environment variables, credentials, or private API keys before sending your files.
What happens if the same bug returns after you deliver the project?
If an issue I resolved returns due to an error in my refactored code, I will fix it free of charge. Please note this after-care support applies strictly to the original scope of the bug fix and does not cover new features or external changes made afterward.
