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Fiverr Pro
Português
$
USD
I will fix bugs in next js react website and optimize performance with ai debugging
Sonjoy Barman
Top Rated
3,7
3,7
Sobre este Serviço
Is your website broken, slow, or full of bugs affecting your users and conversions?
Even small bugs can break functionality, reduce performance, and hurt your business.
I help you fix issues quickly and improve your application stability.
I will fix bugs in your Next.js, React, or JavaScript website using AI-assisted debugging and performance optimization techniques.
What you will get
- Fix JavaScript / React / Next.js bugs
- AI-assisted debugging (faster issue detection)
- Performance optimization
- Error fixing (console, API, UI issues)
- Clean and maintainable code
- Responsive fixes
- Debugging complex issues
Why this works:
- Faster debugging = less downtime
- Clean code = fewer future bugs
- Optimized performance = better user experience
Most developers fix symptoms.
I fix root causes.
Conheça mais sobre Sonjoy Barman
Sonjoy Barman
I will build Full stack application with Next js, Astro js, and AI integration
Top Rated
- A partir deBangladesh
- Membro desdeout. de 2020
- Responde em aprox.:1 hora
- Última entrega2 semanas
Idiomas
Inglês, Francês, Alemão, Espanhol
Senior Full-Stack Developer with 6+ years experience with Next.js, React, TypeScript, Astro.js, Node.js, Python, FastAPI & MongoDB. I am a Fiverr Top Rated Seller with 250+ projects completed for clients in 15+ countries with a 98% satisfaction rate. I develop scalable SaaS platforms, e-commerce systems and AI-powered tools with Google Gemini AI, OpenAI and LangChain. Experience with AWS, Docker, CI/CD and React Native for mobile applications. I concentrate on clean code, SEO-friendly architecture and quick delivery.
Let’s create something great!
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Perguntas frequentes
What type of bugs do you fix?
JavaScript, React, Next.js, API, UI, and performance issues.
Do you fix complex errors?
Yes, including production-level issues.
What is AI debugging?
I use AI-assisted tools to identify issues faster and improve accuracy.
Do you need access?
Yes, GitHub or hosting access may be required.
Avaliações
4 avaliações deste Serviço
| (3) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (1) |
Classificação detalhada
- Nível de comunicação do freelancer
- Recomendar a um amigo
- Serviço conforme a descrição
Ordenar por
Mais relevante
O oktrying
Cliente recorrente
Estados Unidos
There was a glitch with the design on the expiration box on the last page of the design. Seller told me it was a cache stored in phones browser. I trusted him and gave him the benefit of doubt but after delivery I discovered it was an error in the code. When I tried to contact seller, he made himself unavailable to contact and disappeared.
Até US$ 50
Preço
4 Meses
Tempo
S 
Resposta do freelancer
Útil?N 
newsaga
Estados Unidos
Thank you sir!
Útil?Y yakoshi2022
Cliente recorrente
Reino Unido
Great work once again top man !!!
Útil?S 
samps45
Cliente recorrente
Estados Unidos
Loved the fast communication and responsiveness of the team! Thank you I highly recommend reaching out with any project with web development! I will use them again! Thanks, Nate
Útil?
Avaliações
4 avaliações deste Serviço
| (3) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (1) |
Classificação detalhada
- Nível de comunicação do freelancer
- Recomendar a um amigo
- Serviço conforme a descrição
Ordenar por
Mais relevante
O oktrying
Cliente recorrente
Estados Unidos
There was a glitch with the design on the expiration box on the last page of the design. Seller told me it was a cache stored in phones browser. I trusted him and gave him the benefit of doubt but after delivery I discovered it was an error in the code. When I tried to contact seller, he made himself unavailable to contact and disappeared.
Até US$ 50
Preço
4 Meses
Tempo
S Resposta do freelancer
Útil?N newsaga
Estados Unidos
Thank you sir!
Útil?Y yakoshi2022
Cliente recorrente
Reino Unido
Great work once again top man !!!
Útil?S samps45
Cliente recorrente
Estados Unidos
Loved the fast communication and responsiveness of the team! Thank you I highly recommend reaching out with any project with web development! I will use them again! Thanks, Nate
Útil?
