You will get fix bugs and improve performance of your React or Next.js app
Project details
Your React app has bugs, slow load times, or messy code that's
getting harder to maintain? I'll dig in, find the root cause,
and fix it properly - not just patch it.
I have extensive experience in development, although I’m new to Upwork. I focus fully on your project and immerse myself completely in solving your specific request.
What I can help with:
• Bugs - crashes, broken UI, unexpected behavior, console errors
• Performance - unnecessary re-renders, slow pages, poor
Core Web Vitals (LCP, CLS, FID)
• State issues - Zustand, Context, or Redux logic that's
causing sync problems or memory leaks
• Next.js specific - App Router issues, SSR/SSG bugs,
hydration errors, API route problems
• Code quality - messy components, prop drilling,
duplicated logic that slows down your team
How it works:
Share your repo or a description of the issue, and I'll review
it before we start. No guessing - I'll tell you exactly what's
wrong and how I'll fix it.
I work with React, Next.js, JavaScript, Tailwind CSS, and Zustand, Redux.
getting harder to maintain? I'll dig in, find the root cause,
and fix it properly - not just patch it.
I have extensive experience in development, although I’m new to Upwork. I focus fully on your project and immerse myself completely in solving your specific request.
What I can help with:
• Bugs - crashes, broken UI, unexpected behavior, console errors
• Performance - unnecessary re-renders, slow pages, poor
Core Web Vitals (LCP, CLS, FID)
• State issues - Zustand, Context, or Redux logic that's
causing sync problems or memory leaks
• Next.js specific - App Router issues, SSR/SSG bugs,
hydration errors, API route problems
• Code quality - messy components, prop drilling,
duplicated logic that slows down your team
How it works:
Share your repo or a description of the issue, and I'll review
it before we start. No guessing - I'll tell you exactly what's
wrong and how I'll fix it.
I work with React, Next.js, JavaScript, Tailwind CSS, and Zustand, Redux.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$50
|
Standard
$120
|
Advanced
$350
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 5 days |
Number of Revisions | 1 | 1 | 2 |
Bug Investigation | |||
Fix Documentation | |||
Detailed Code Comments |
Optional add-ons
You can add these on the next page.
Additional Revision
+$50About Anatolii
NextJS, React | AI and LLM Integrations | Website Developer
Saarbruecken, Germany - 6:50 pm local time
I immerse myself completely in solving your specific request.
You focus on your business💰 - I handle the code. Deadlines met, budget respected, quality delivered with precision.
I have extensive experience in development.
React | Next.Js | Full-Stack | Web-Developer
I build fast, scalable web apps that drive real business results.
Experienced, detail-oriented developer - I work on one project at a time, giving it my full focus.
Here are my services:
● Custom Web Apps (Next.js / React)
● Landing Pages & E-commerce
● Business Web-Site
● REST API & Backend Development
● Database Design (PostgreSQL, MongoDB, MySQL)
● VPS Setup, Deployment & DevOps
● Performance Optimization & Core Web Vitals
● Auth & Payments (Clerk, NextAuth, Stripe)
Skills & Stack:
● Frontend: Next.js React JavaScript TypeScript
● Styling: TailwindCSS SASS CSS3 BEM
● Backend: Nodejs PostgreSQL MongoDB MySQL
● State & Real-time: Zustand Redux Toolkit Socket IO
● Infra: VPS CI/CD Nginx Linux
● Workflow: Scrum Kanban Agile Team Lead
Let's talk about your project →
Steps for completing your project
After purchasing the project, send requirements so Anatolii can start the project.
Delivery time starts when Anatolii receives requirements from you.
Anatolii works on your project following the steps below.
Revisions may occur after the delivery date.
Code Review & Diagnosis
I review your codebase or reproduce the issue and identify the root cause - not just the symptoms.
Fix & Optimize
I implement the fix with clean, maintainable code and test it against edge cases.