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I will fix react nextjs javascript and responsive website bugs
Efasiy
About this gig
Is your React or Next.js project showing errors, broken layouts, failed builds, or unexpected behavior?
I will investigate the problem, identify the root cause, and apply a clean, focused solution without unnecessarily rewriting your project.
I can help with:
React and Next.js errors
JavaScript and TypeScript issues
Broken responsive layouts
Component and state problems
Routing and navigation errors
Forms and authentication
REST API integration
Firebase and Supabase
Build and deployment failures
Frontend performance problems
My process is straightforward: reproduce the issue, trace its cause, fix the relevant code, and test the affected functionality. I will also provide a brief explanation of what caused the problem and what was changed.
Please contact me before ordering and include the error message, screenshots, reproduction steps, and a link to the project when possible. This allows me to confirm the scope and recommend the correct package.
Each package covers clearly defined and reproducible issues. Major rewrites, incomplete applications, or problems involving several unrelated systems may require a custom offer.
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 Efasiy
Efasiy
FullStack Web Developer React, Nextjs and Nodejs
- FromUkraine
- Member sinceDec 2024
- Avg. response time1 hour
Languages
English, Spanish, French, Japanese, German, Ukrainian, Russian, Korean
Hi! I’m a full-stack web developer focused on building fast, responsive websites and web apps. I work with React, Next.js, TypeScript, Node.js, and Tailwind CSS, and can handle everything from landing pages to databases, authentication, REST APIs, and Stripe payments.
I also fix bugs, improve existing code, and deploy projects with Vercel or Docker. I keep communication clear, pay attention to the details, and aim for solutions that are clean, practical, and easy to maintain. If you have a project in mind, send me the details and I’ll tell you honestly how I can help.
FAQ
What information do you need before starting?
Please provide a clear description, reproduction steps, screenshots, error messages, and the expected result. A repository link or relevant source files will also help me evaluate the scope.
What counts as one issue?
One issue is a single clearly defined and reproducible problem with one expected result. Several unrelated errors are counted separately.
Can you work with an existing React or Next.js project?
Yes. I can review an existing codebase, identify the cause of the problem, and update the relevant files without rebuilding the entire application.
Can you fix responsive layout problems?
Yes. I can correct mobile, tablet, and desktop layout issues involving CSS, Tailwind CSS, Bootstrap, or component styling.
Can you troubleshoot APIs Firebase or Supabase?
Yes. I can investigate frontend integration problems involving REST APIs, Firebase, Supabase, authentication, and database requests.
Will you explain what was changed?
Yes. After completing the order, I will provide a short explanation of the cause and the changes made to resolve it.
Do you provide the updated source code?
Yes. You will receive the updated files or changes through the agreed delivery method.
What if the problem is larger than expected?
If the issue requires additional work, I will explain the findings and provide a custom offer before continuing. No extra work will be added without your approval.
Do you guarantee that every problem can be fixed?
I first review the available information and confirm whether the issue is within my scope. Problems caused by unavailable services, missing source code, or third-party restrictions may require an alternative solution.
