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I will fix react and nextjs bugs and improve website performance
Khoa L.
About this gig
Is your website showing errors, broken layouts, or unexpected behavior?
I can help you investigate bugs, find their root causes, and fix them without making unnecessary changes to your existing codebase.
What I can help you fix:
- React, Next.js, Vue.js, and Nuxt.js errors
- JavaScript and TypeScript bugs
- Broken UI, CSS, and responsive layouts
- Component rendering and state management issues
- SSR, CSR, and hydration errors
- Forms, buttons, and interactive functionality
- API integration and data handling issues
- Next.js server-side and Node.js runtime errors
- Browser compatibility issues
What you'll get:
- Bug investigation and root cause analysis
- Clean, maintainable code fixes
- Testing of the affected functionality
- A brief explanation of the changes made
Before placing an order:
Please message me with a description of the issue, relevant screenshots or error logs, and your project's tech stack.
Please note: This Gig focuses on frontend bugs and related Next.js/Node.js server-side issues. I don't include full backend development, database troubleshooting, new features, or website speed optimization.
Feel free to reach out. I'll be happy to take a look!
Get to know Khoa L.
Khoa L.
Senior Frontend Developer
- FromVietnam
- Member sinceOct 2026
- Avg. response time1 hour
Languages
English, Vietnamese
Hi, my name is Khoa!
I'm a Senior Frontend Developer with 5+ years of experience building highly maintainable websites, responsive web applications, and animation-rich websites that perform smoothly across devices, including desktops, tablets, and mobile phones.
My core tech stack centers on React, Next.js, Vue, Nuxt.js, and TypeScript, but my expertise goes beyond that. I've worked on all kinds of projects, from interactive marketing websites with rich animations to complex web applications where performance, scalability, and clean code really matter.
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Other Software Development Services I Offer
FAQ
What technologies do you work with?
I mainly work with React, Next.js, Vue.js, Nuxt.js, JavaScript, TypeScript, and Node.js. I also handle frontend-related server-side issues in Next.js and Node.js.
Can you fix bugs in an existing project?
Absolutely! I can investigate and fix bugs in your existing codebase without rebuilding your website or making unnecessary changes.
What counts as one bug?
One bug is a specific, reproducible issue with an agreed scope. The package depends on the number and complexity of issues, not just the number of error messages.
Can you fix Next.js hydration, SSR, or Node.js errors?
Yes! I can help with hydration mismatches, SSR/CSR issues, rendering errors, Node.js runtime problems, and API-related bugs. Please contact me first for complex issues.
Do you need access to my source code?
Usually, yes. I'll need access to your repository or project files to investigate and fix the issue. Please don't share passwords, API keys, or other sensitive credentials.
What counts as a revision?
Revisions cover adjustments related to the original fix, such as correcting an issue that remains within the agreed scope. New or unrelated bugs aren't included.
Can you fix bugs in an existing production website?
Yes, provided I can access the relevant code and reproduce the issue. I prefer testing changes in a development or staging environment before they're deployed to production.
What if the bug is more complicated than expected?
I'll explain what I find and discuss the scope with you before proceeding with additional work. Complex issues may require a custom offer.
Do revisions include fixing additional bugs?
Revisions cover adjustments to the originally agreed fixes. Unrelated bugs, new features, or additional functionality are not included and may require a separate order.
