Sfoglia categorie
Esplora
Fiverr Pro
Italiano
$
USD
I will fix react and nextjs bugs in 24 hours
Andrii T
5,0
5,0
Informazioni su questo servizio
Hi, I'm Andrii Senior Frontend Engineer with 10 years of What if my issue is more complex than the tier I purchased?experience in React, Next.js, and TypeScript.
If your React or Next.js app has a bug or performance issue, I can usually diagnose and fix it within 24-48 hours.
WHAT I FIX:
Layout bugs, broken styling, responsive issues
Component logic errors, state management bugs
TypeScript errors and type issues
API integration problems (REST, GraphQL, WebSocket)
Build/deployment failures (Webpack, Vite, Next.js)
Hydration errors, SSR/CSR mismatches in Next.js
Performance issues slow rendering, large bundles, poor Core Web Vitals
WHAT YOU GET:
Clear diagnosis of the problem
Clean, production-ready fix
Brief explanation of the solution
Quick turnaround (24-48 hours)
MY STACK:
React, Next.js, TypeScript, Tailwind, Styled Components, WebSocket, GraphQL, REST, Webpack, Vite, Material UI.
Send me a message before ordering if you're not sure which tier fits happy to take a quick look first.
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Ricorda che è contrario alle politiche di Fiverr per i freelance includere temi, modelli o qualsiasi altro elemento che violi i diritti di terzi o le leggi applicabili nell'opera consegnata. Per saperne di più, consulta Guida alla creazione digitale responsabile.
Scopri di più su Andrii T
Andrii T
AI Product Engineer, Agent UX, generative UI
- DaUcraina
- Membro daago 2024
- Ultima consegna2 mesi
Lingue
Russo, Ucraino, Inglese
Building AI-powered product interfaces and agentic systems on top of 10 years of production frontend
engineering. Currently integrating LLM agents into e-commerce — tool calling, streaming, generative UI —
using Vercel AI SDK on real production traffic. Deep expertise in React, Next.js and TypeScript across
e-commerce, IoT and fintech; specialised in real-time architectures (WebSocket, WebGL, REST).
Comfortable owning full product layers from UI to backend integration.
Il mio portfolio
FAQ
What if my issue is more complex than the tier I purchased?
I'll take a quick look first and let you know upfront. If the scope is bigger than the tier covers, I'll suggest upgrading or recommend a custom offer with accurate timing and pricing. No surprise charges mid-order.
Do you work with TypeScript only, or JavaScript projects too?
Both. I work with TypeScript daily (it's my preferred setup), but JavaScript-only projects are equally fine.
What if I don't have a GitHub repo — can I send a zip file?
Yes, zipped project files work fine. I'll set up the project locally to reproduce and fix the issue.
Can you fix bugs in older React versions or class components?
Yes — I've worked with React across many versions and patterns (class components, hooks, Redux, Context, modern App Router in Next.js). Just let me know what you're working with.
What happens after the fix is delivered?
You get the fix in a branch/commit (or zip if no repo). I'll briefly explain the issue and how I fixed it. You test it, request changes if needed (revisions included), and accept delivery once you're satisfied.
Recensioni
1 recensioni per questo servizio
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Valutazione dettagliata
- Livello di comunicazione del venditore
- Qualità della consegna
- Valore della consegna
Ordina per
Più rilevante
J 
jackyace
Germania
Andrii has amazing frontend development skills. He communicates reliably and quickly understands requirements. Speed of delivery was top noth and he was very committed to resolving bugs quickly. Overall I am very happy with the work. Thanks!
50 USD-100 USD
Prezzo
3 giorni
Tempo
Utile?
Recensioni
1 recensioni per questo servizio
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Valutazione dettagliata
- Livello di comunicazione del venditore
- Qualità della consegna
- Valore della consegna
Ordina per
Più rilevante
J jackyace
Germania
Andrii has amazing frontend development skills. He communicates reliably and quickly understands requirements. Speed of delivery was top noth and he was very committed to resolving bugs quickly. Overall I am very happy with the work. Thanks!
50 USD-100 USD
Prezzo
3 giorni
Tempo
Utile?
