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English
$
USD
I will fix or develop web application with react, nextjs, vite
Mathias
Level 2
5.0
5.0
About this gig
Hi! I'm a full-stack developer with 5+ years of experience fixing, improving and building React, Next.js and Vite applications. I write clean, maintainable code and deliver fast.
What I can help you with:
Bug fixing and troubleshooting:
- JavaScript, React and Next.js bug fixes
- Performance issues and slow load times
- Broken layouts, API errors, auth issues
Feature development:
- New pages, components or full sections
- REST API integrations
- User authentication (JWT, sessions, roles)
- State management (Redux, Context API)
UI and frontend work:
- Figma / PSD / PNG to pixel-perfect React
- Responsive design (mobile-first)
- Tailwind CSS, Bootstrap, Material UI
- Next.js SSR, routing and API routes
Why work with me:
- I've built and launched my own SaaS product in production
- Clean architecture and reusable components
- Fast communication and daily updates
- Honest scoping: I'll tell you upfront what's needed
- 100% satisfaction guarantee
Message me before ordering so we can scope the work properly. I usually respond within a few hours.
Get to know Mathias
Mathias
Hi! my name is Mathias and i love develop and design websites
Level 2
- FromUruguay
- Member sinceAug 2021
- Avg. response time1 hour
- Last deliveryabout 1 hour
Languages
English, Spanish
Hello! Welcome to my profile.
I am a Full Stack Web Developer and professional web designer. If you are interested in knowing more about what I can offer you take a look at my gigs.
Feel free to leave a message
FAQ
What do you need to get started with the job?
It is only necessary that you describe how you want your application to be, otherwise if you don't have a clear idea I can help you.
Reviews
23 reviews for this Gig
| (23) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
N natalia_garciam
Repeat Client
Kenya
Great experience working with Mathias. He took over an existing codebase, fixed bugs, and added new UI/UX features, all with a clear understanding of the product. Very responsive, great communication, and delivered ahead of schedule. Would definitely work with him again.
$1,000-$1,500
Price
4 weeks
Duration
Helpful?N natalia_garciam
Repeat Client
Kenya
This was my second time working with Mathias, and I hope to continue working with him. He is proactive, knowledgeable, patient, and very easy to communicate with. What I appreciated most is that he did not just execute tasks, he understood the goals of the project and often offered thoughtful suggestions...
$1,500-$2,000
Price
5 weeks
Duration
Helpful?P performancec317
Repeat Client
Brazil
Mathias ha hecho un gran trabajo. Ha sido confiable, respetuoso, honesto y profesional. Seguiremos trabajando.
$100-$200
Price
3 weeks
Duration
Helpful?L leman_russ_ig
Repeat Client
Netherlands
Great as always, this time I asked a bigger task and was delivered as well as before.
$100-$200
Price
10 days
Duration
Helpful?C cnboles
Repeat Client
United States
Mathias is great to work with! I will be working with him again.
Up to $50
Price
1 day
Duration
Helpful?
Reviews
23 reviews for this Gig
| (23) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
N natalia_garciam
Repeat Client
Kenya
Great experience working with Mathias. He took over an existing codebase, fixed bugs, and added new UI/UX features, all with a clear understanding of the product. Very responsive, great communication, and delivered ahead of schedule. Would definitely work with him again.
$1,000-$1,500
Price
4 weeks
Duration
Helpful?N natalia_garciam
Repeat Client
Kenya
This was my second time working with Mathias, and I hope to continue working with him. He is proactive, knowledgeable, patient, and very easy to communicate with. What I appreciated most is that he did not just execute tasks, he understood the goals of the project and often offered thoughtful suggestions...
$1,500-$2,000
Price
5 weeks
Duration
Helpful?P performancec317
Repeat Client
Brazil
Mathias ha hecho un gran trabajo. Ha sido confiable, respetuoso, honesto y profesional. Seguiremos trabajando.
$100-$200
Price
3 weeks
Duration
Helpful?L leman_russ_ig
Repeat Client
Netherlands
Great as always, this time I asked a bigger task and was delivered as well as before.
$100-$200
Price
10 days
Duration
Helpful?C cnboles
Repeat Client
United States
Mathias is great to work with! I will be working with him again.
Up to $50
Price
1 day
Duration
Helpful?
