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English
$
USD
I will fix bugs and add features to your react, next js or firebase web app
Franco Caviglia
5.0
5.0
About this gig
Something broken in your React, Next.js or Firebase app? I'll find it and fix it.
Send the bug, repo access and steps to reproduce. Most fixes are delivered within 24 hours, tested and working, not patched over.
What I fix
React and Next.js errors, crashes and broken builds
Firebase: Firestore, Auth, Hosting and security rules
Failing API calls, CORS, auth and session issues
Broken layouts and responsive bugs
Node.js and TypeScript errors
Failed deploys on Vercel, Netlify, Render or Firebase
Performance problems and slow page loads
What each package includes
Basic: 1 bug, fixed and tested
Standard: 3 bugs or a small feature, with root cause and deployment
Premium: 6 bugs or one complex feature, plus a code health report
How it works
1. Send me the bug and repo access
2. I reproduce it and confirm I can fix it
3. I fix it, test it locally, and explain what caused it
4. You get a clean commit or pull request
Before you order
React, Next.js, Node, TypeScript and Firebase only (no WordPress, PHP or Wix). Code must be in a Git repo.
If I can't fix it, I'll tell you within a few hours and refund you.
I fix the cause, not the symptom, and I tell you what went wrong.
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 Franco Caviglia
Franco Caviglia
Full Stack TypeScript Developer for Web Apps and Automation
- FromArgentina
- Member sinceJul 2026
- Avg. response time1 hour
- Last delivery1 week
Languages
English, Spanish
Hi, I’m Franco, a full-stack developer with 3+ years of experience building web applications, SaaS MVPs, dashboards, landing pages, and backend systems. I work with Next.js, Angular, NestJS, and TypeScript, integrating AI features when they add real value. I focus on clear communication, clean code, and practical solutions tailored to each business. Whether you want to launch a new idea or improve an existing product, send me a message and tell me about your project.
My Portfolio
FAQ
What if you can't fix my bug?
I'll tell you within a few hours of starting, not at the deadline. You can take a full refund, or I can deliver a diagnosis report explaining the cause and what a fix would involve.
Do you need access to my code?
Yes — a GitHub, GitLab or Bitbucket repo. Read access is enough to diagnose; I'll need write access or you can merge my pull request. I never touch anything outside the reported bug.
Is my code safe?
I never share, reuse or publish client code, and I'm happy to sign an NDA before you send anything.
What counts as one bug?
One reproducible issue with one cause. If three pages break because of the same root problem, that's one bug — not three.
What if my issue turns out to be bigger than one bug?
I'll tell you before starting and quote the right package. I never start work and ask for more money halfway through.
Do you work with WordPress or PHP?
No. I work with React, Next.js, Node and TypeScript only. Staying specialized is why I can fix things fast.
Can you fix it today?
Often yes. Add the 12-hour delivery extra and message me first to confirm I'm available.
Will you explain what caused the bug?
Standard and Premium include a root cause explanation, so you understand what happened and can avoid it next time.
Do you work with Firebase?
Yes: Firestore, Auth, Hosting, Storage and security rules. I test changes locally with the Firebase emulators, so your live data is never touched, and I can deploy the result for you.
Reviews
1 reviews for this Gig
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Rating Breakdown
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adrianvivenez
Venezuela
Comprendió enseguida el requerimiento. Cumplió con lo solicitado en tiempo y forma. Recomendado!
$50-$100
Price
1 day
Duration
Helpful?
Reviews
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
A adrianvivenez
Venezuela
Comprendió enseguida el requerimiento. Cumplió con lo solicitado en tiempo y forma. Recomendado!
$50-$100
Price
1 day
Duration
Helpful?
