I will fix react and nextjs bugs in your web app


About this gig
Stuck with a broken page, failed build, unreliable form, or API error? I will trace the issue in your React or Next.js app, make a focused fix, and explain what changed.
I bring senior frontend and full-stack engineering experience, with a design background and a focus on maintainable code and usable interfaces. I can also help with AI-built apps when the underlying code uses a supported stack.
You receive the agreed source-code changes, verification of the affected behavior, and a concise handoff with the cause and any remaining limitations.
Packages cover an agreed list of issues in one existing app. New features, major rewrites, third-party fees, and ongoing support are separate. A revision corrects the agreed work; it does not add new requirements.
Please message me with your error, steps to reproduce it, stack, and available code before ordering so I can confirm the right scope.
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 Derek
Branding, 3D, Web Design and Full Stack Software Engineering
- FromUnited States
- Member sinceSep 2026
Languages
English
My Portfolio
FAQ
Can you fix an app built with AI?
Yes, when its actual stack fits React, Next.js, TypeScript, JavaScript, or a supported Node.js API. Builder names alone do not establish scope.
Is this a complete code or security audit?
No. This covers the agreed issues. A broader review needs its own scope.
What if the problem is larger than expected?
I will explain the finding and agree any scope change through Fiverr before additional work.

