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I will fix bugs in your react nextjs or typescript web app
Serhii Zhabskyi
About this gig
A broken button, failing API request or TypeScript error can block your users. I will help you find and fix the cause in your existing React or Next.js web app.
I am a senior frontend developer with 5+ years of experience in React, TypeScript and Next.js.
I can help with:
- React components, hooks and state issues
- Next.js routing and frontend errors
- TypeScript and JavaScript bugs
- API integration and data display issues
- Responsive layout and CSS problems
The Basic package covers ONE agreed minor bug, the related code changes, a check of the affected flow and a short explanation of the fix. One revision covers the same original issue. New features, multiple bugs and larger refactoring need a separate quote.
Please message me on Fiverr before ordering with the error, steps to reproduce it and your tech stack. I will review the scope and confirm the right package.
Your source code and business information will be treated confidentially. No client names or private project details are used in my portfolio.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Serhii Zhabskyi
Serhii Zhabskyi
React Developer, Smart TV Apps, Chrome Extensions, Webflow
- FromGermany
- Member sinceApr 2025
Languages
English
Senior frontend developer with 5+ years of experience in React, TypeScript and Next.js. I build web apps, Chrome extensions and Smart TV apps for Tizen, webOS and Android TV. I can help with frontend architecture, API integrations, dashboards, user roles, performance, bug fixes and automated tests. I also design fast, responsive websites and build or migrate them in Webflow. My experience includes code reviews, technical planning and developer tools for AI agent workflows. Clear communication, maintainable code and practical solutions from review to delivery.
FAQ
Should I contact you before ordering?
Yes. Send the error, steps to reproduce it and your tech stack through Fiverr. I will review the issue and confirm whether it fits the Basic package before you order.
What does the Basic package include?
One agreed minor bug fix in an existing React or Next.js app, a check of the affected flow and a short explanation of the changes. Multiple bugs, new features and larger refactoring require a separate quote.
What does one revision cover?
One follow-up adjustment for the original agreed bug. A different issue or a new feature is outside the revision scope.
Can you work with confidential source code?
Yes. I treat source code and business information confidentially. If you need an NDA, send it for review before ordering. Client work will not be added to my public portfolio without permission.
