You will get custom React and Next.js site with TypeScript and performance optimization
Top Rated
Project details
Transform your business vision into a high-performance web application. As a developer with extensive experience in React, Next.js, and TypeScript, I build scalable, secure, and pixel-perfect web applications tailored precisely to your technical and design requirements.
Key features of my service:
Expert Architecture: Clean, maintainable code using Redux or Zustand for complex state management.
Performance First: Focused on optimized Core Web Vitals and lightning-fast loading speeds.
Type-Safe & Secure: Robust development with TypeScript to ensure stability and high security standards.
Full Ownership: You receive the complete source code and full rights to the final product.
Responsive Design: Flawless performance and appearance across all devices and browsers.
From premium landing pages to complex full-stack applications, I ensure technical excellence and professional delivery at every stage.
Key features of my service:
Expert Architecture: Clean, maintainable code using Redux or Zustand for complex state management.
Performance First: Focused on optimized Core Web Vitals and lightning-fast loading speeds.
Type-Safe & Secure: Robust development with TypeScript to ensure stability and high security standards.
Full Ownership: You receive the complete source code and full rights to the final product.
Responsive Design: Flawless performance and appearance across all devices and browsers.
From premium landing pages to complex full-stack applications, I ensure technical excellence and professional delivery at every stage.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$800
|
Standard
$2,000
|
Advanced
$4,500
|
|---|---|---|---|
| Delivery Time | 5 days | 14 days | 30 days |
Number of Revisions | 2 | 3 | 4 |
Number of Pages | 1 | 3 | 12 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Additional Page
(+ 2 Days)
+$150Frequently asked questions
69 reviews
(69)
(0)
(0)
(0)
(0)
This project doesn't have any reviews.
DR
David R.
Mar 20, 2026
React Developer with TailwindCSS Expertise
Oleg is a great developer and helped us tremendously with our React frontend. Good English and communication skills. Can highly recommend.
VC
Victor C.
Jul 1, 2025
European Frontend Developer Needed - Tailwind CSS, HTML, and CSS
IZ
Itay Z.
Feb 20, 2025
Frontend Developer Needed for Figma to Next.js Project
IZ
Itay Z.
Feb 20, 2025
Frontend Developer Needed for Figma to Next.js Project
DH
Donald H.
Feb 7, 2025
Modify existing CSS glitch effect slightly
Oleg is reat to work with. Highly recommend.
About Oleg
React Developer | Next.js Developer | Refactoring | AI Code Cleanup
100%
Job Success
Kharkiv, Ukraine - 5:58 pm local time
Usually, my work is frontend-focused, but I’m equally comfortable handling full-stack tasks when the project calls for it. I regularly work with API integrations, authentication flows, data-heavy interfaces, and backend-driven systems built with Node.js, NestJS, Laravel, Supabase, or GraphQL.
Sometimes I join projects at the start and help build products from scratch. Other times, I step into existing codebases that have grown harder to maintain, scale, or extend. Over the years, I’ve worked on products where shipping features matters, but keeping the codebase maintainable matters just as much.
As products grow, codebases naturally become harder to maintain. Features take longer to ship, bugs start showing up in unexpected places, and small changes can affect other parts of the system. I help make products easier to extend, more predictable to work with, and less painful to maintain over time.
I try to keep things practical. Clear structure, reusable components, predictable state management, and avoiding unnecessary complexity so the codebase stays easy to understand as the product grows.
I mainly work with React, TypeScript, Next.js, Tailwind CSS, Vanilla Extract, Zustand, TanStack Query, Zod, shadcn/ui, and React Aria Components, and I’m comfortable working across modern React ecosystems.
I also work with projects that were built quickly using AI tools like ChatGPT, GitHub Copilot, or other code generation tools and later became hard to scale or maintain. I help stabilize those codebases, improve structure, and turn them into something reliable.
What I usually help with:
▪ Building React / Next.js applications from scratch
▪ Turning Figma designs into responsive, accessible UI
▪ Refactoring and improving existing React / TypeScript codebases
▪ Adding new features without breaking existing functionality
▪ Integrating REST APIs and GraphQL backends
▪ Improving performance in React / Next.js applications
▪ Handling complex frontend logic and state management
▪ Stabilizing AI-generated or prototype codebases
I’m comfortable working independently or as part of an existing team. I care about keeping things practical, avoiding overengineering, and writing code that stays easy to work with for the people who maintain it later.
If that sounds like what you need, feel free to reach out.
Steps for completing your project
After purchasing the project, send requirements so Oleg can start the project.
Delivery time starts when Oleg receives requirements from you.
Oleg works on your project following the steps below.
Revisions may occur after the delivery date.
Technical Discovery & Architecture
Analyzing your requirements to design a scalable architecture using Next.js and TypeScript. We will finalize the data flow and state management strategy.
Frontend Development & UI Implementation
Building responsive, high-performance React components. I focus on clean code and 100% fidelity to your design assets.