Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix bugs in your react or nodejs app
Gregory P.
About this gig
I fix errors and broken features in React, JavaScript, TypeScript and Node.js apps. I've debugged real production code, including a legacy codebase that was blocking bookings for 10+ businesses, so I look for root causes instead of quick patches.
I can help with:
- Console errors, crashes and blank screens
- Broken forms, buttons, layouts and mobile issues
- API, database and login problems (Node.js, Express, MongoDB, JWT)
- Real-time bugs with WebSockets or SSE
- Code that works locally but breaks after deployment
What you get:
- Working, tested fixes
- A short explanation of what was wrong and how I fixed it
- Clean changes that are easy to review
Before ordering: message me with what's broken, any error messages and your tech stack. I'll check it and tell you honestly which package fits.
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 Gregory P.
Gregory P.
Full Stack Developer for Real Time Web Apps
- FromGreece
- Member sinceJul 2020
- Avg. response time1 hour
Languages
English, Greek
Hi, I'm Gregory, a full-stack developer from Athens. I build and ship production software with React, TypeScript, Node.js and MongoDB, including real-time booking platforms used by 10+ businesses, multi-tenant admin dashboards, and secure mobile apps.
I can help you with:
• Responsive web apps and landing pages in React
• Node.js REST APIs, auth (JWT) and databases
• Real-time features with WebSockets and SSE
• Bug fixing, legacy code and EJS-to-React migrations
I work directly with you, communicate clearly, and take ownership from idea to deployment.
My Portfolio
FAQ
Which technologies do you work with?
React, JavaScript, TypeScript, Node.js, Express, MongoDB, HTML and CSS. If your stack is different, message me first and I'll tell you honestly if I can help.
Is this only for one bug?
My packages cover several issues per order (3, 6 or 10). For one small fix, message me and I'll tell you what's possible.
What if you can't fix the problem?
I'll tell you before you order or early in the process, so you don't waste time or money. If I can't solve it, we cancel the order.
How do I share my code?
A GitHub repo invite or a zipped folder works best. Please don't send production passwords or private keys. A test or staging copy is ideal.
Do you explain what was wrong?
Yes. Every delivery includes a short explanation of the cause and the fix, so you can avoid the same problem later.
Can you add new features?
Small ones, yes. For bigger features, message me and I'll send a custom offer.
Do you sign an NDA?
Yes, I can, just let me know before starting.
