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$
USD
I will fix react nextjs frontend issues and ui bugs
Kar Y.
About this gig
Having React or Next.js deployment issues?
I can quickly fix frontend bugs, build errors, deployment failures, API integration issues, responsive UI problems, and React / Next.js production issues.
Small fixes and quick frontend issues are welcome. Feel free to message me first for a smaller custom offer.
Perfect for:
Small frontend fixes
React UI bugs
Next.js deployment issues
Responsive design fixes
Startup MVPs
SaaS dashboards
Frontend debugging
I can help with:
React bugs
Next.js build errors
Vercel deployment issues
Broken UI components
API integration bugs
Hydration errors
Tailwind CSS fixes
Frontend debugging
Speed optimization
Tech stack:
React, Next.js, TypeScript, Tailwind CSS, Firebase, Supabase, Vercel, GitHub, and REST APIs.
Why work with me?
Fast communication
Quick turnaround
Clean and scalable fixes
Friendly for small fixes and startup projects
Portfolio examples available:
AI SaaS Dashboard
Startup Landing Page
Restaurant Website
Clinic Website
Law Firm Website
Quick fixes can often be completed with a smaller custom offer after discussing the issue in the inbox. Message me first for small fixes or quick custom offers.
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 Kar Y.
Kar Y.
React Nextjs Developer AI SaaS Frontend Specialist
- FromHong Kong
- Member sinceMay 2026
- Avg. response time1 hour
Languages
Chinese, English
I help startups and businesses build modern web applications, AI SaaS platforms, dashboards, and business websites using React, Next.js, and TypeScript.
Whether you need a frontend bug fixed, a SaaS MVP launched, or a modern website built, I focus on clean code, fast communication, and business results.
My expertise includes React, Next.js, TypeScript, Tailwind CSS, Supabase, Firebase, Vercel, API integrations, deployment, and frontend optimization.
Small fixes and startup projects are welcome. Feel free to contact me before ordering.
My Portfolio
FAQ
What kind of bugs can you fix?
I can fix UI bugs, React errors, Nextjs issues, TypeScript problems, API integration issues, responsive design problems, and deployment errors.
Can you work with existing codebases?
Yes. I can work with existing React or Nextjs projects and improve, debug, or optimize the code professionally.
Do you fix responsive or mobile UI issues?
Yes. I can improve layouts, responsiveness, mobile compatibility, and frontend performance.
Do you provide urgent fixes?
Yes. Extra fast delivery is available for urgent frontend or deployment issues.
Can you fix deployment or production issues?
Yes — I can troubleshoot React / Next.js deployment issues, frontend production bugs, responsive problems, and API-related frontend errors.
Can you fix urgent production bugs?
Yes. I can troubleshoot and fix urgent React, Next.js, frontend and deployment issues.
Can you work with existing codebases?
Yes. I can work on existing React and Next.js projects.
Can you fix Vercel deployment issues?
Yes. I can troubleshoot build failures, environment variables and deployment errors.
