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English
$
USD
I will fix and optimize react app performance
Roberto
About this gig
Stuck with frustrating React bugs, Next.js build errors, or a slow web application?
I debug and resolve issues in front-end web applications quickly so you can launch on time without headaches.
What I Fix:
- React state, hooks, and re-rendering bugs
- Next.js App Router, SSR, and hydration errors
- Responsive design and Tailwind CSS layout issues
- API connection failures and CORS issues
- Slow page load speeds (Core Web Vitals & Google PageSpeed)
Why Work With Me?
- Rapid turnaround (1224 hours for urgent bugs)
- Clean refactored code that prevents future errors
- Clear explanation of what broke and how it was resolved
Send me a description or screenshot of your bug to get started!
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 Roberto
Roberto
Frontend Developer, AI integration
- FromItaly
- Member sinceSep 2026
Languages
Italian, English
I am a product-minded Frontend & Design Engineer with 3+ years of experience building high-performance, pixel-perfect web applications. I specialize in bridging the gap between Figma design systems and robust React/TypeScript architectures. I have a proven track record of taking full ownership of features end-to-end and delivering intuitive user experiences.
My Portfolio
FAQ
How quickly can you fix my urgent bug?
Most standard bugs are identified and resolved within 12 to 24 hours. For critical emergencies, send me a direct message for immediate assistance.
What access do you need to debug my web app?
I will need access to your GitHub repository or a ZIP archive of your source code, along with screenshots or steps to reproduce the error.
Can you guarantee a 90+ score on Google PageSpeed Insights?
Yes! In the Standard and Premium packages, I optimize image formats, code-splitting, dynamic imports, script loading, and CSS to achieve a 90+ performance rating.
What if the bug cannot be resolved?
I always audit your code before starting the project. If an issue turns out to be impossible to fix due to third-party server outages or limitations, you get a 100% full refund guarantee.
