I will build or fix react components, forms and UI bugs

A
alexxmushikk
A
alexxmushikk
Oleksandr
build or fix react components, forms and UI bugs
Full Screen
build or fix react components, forms and UI bugs
Full Screen
Full Screen
build or fix react components, forms and UI bugsbuild or fix react components, forms and UI bugsbuild or fix react components, forms and UI bugs

About this gig

Is your React app throwing errors, a form not working, or do you need a new component? I'll fix or build it with clean, readable code.


What I can do:

Fix bugs in existing React projects (rendering, state, hooks, routing)

Build new components and forms with validation

Connect your frontend to a REST API with loading and error states

Clean up and simplify component code

Add tests for the fix (Vitest, React Testing Library)


Stack: React 19, JavaScript (ES6+), TypeScript (basics), React Router, Vite, Axios, Node.js and Express for API issues.


How it works: send me the repository or a short description of the problem, I confirm scope and price before starting, then deliver the fix with a short explanation of the cause.


Please note: this gig covers functionality and clean code. Pixel-perfect work from complex designs and CMS/WordPress plugins are not included.

  • Platform

    • Custom

  • Website type

    • Business
    • Landing page
    • Forms
    • Portal

  • Programming language

    • JavaScript
    • TypeScript
    • HTML & CSS
    • React
    • Other
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 Oleksandr

Oleksandr

React frontend developer

  • FromPoland
  • Member sinceNov 2025

  • Languages

    English, Ukrainian, Russian, Polish
I'm Oleksandr, a React developer from Warsaw finishing a Computer Science degree. I build and fix React interfaces, connect them to REST APIs and cover them with tests. My main project is a full-stack booking platform with patient, doctor and admin roles, JWT auth and 178 automated tests. I communicate in English, Polish and Ukrainian, ask clarifying questions before I start, and deliver clean, readable code.

My Portfolio

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