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You will get React developer | Front end developer React | Next.js Performance Audit

Yevhen T.Status: Offline
Yevhen T. Yevhen T.
4.9
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Yevhen, priced and ready to go.
Yevhen T.Status: Offline
Yevhen T. Yevhen T.
4.9
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Yevhen, priced and ready to go.

Project details

⚠️ 𝐈𝐌𝐏𝐎𝐑𝐓𝐀𝐍𝐓: 𝐄𝐯𝐞𝐫𝐲 𝐂𝐥𝐢𝐞𝐧𝐭 𝐡𝐚𝐬 𝐮𝐧𝐢𝐪𝐮𝐞 𝐫𝐞𝐪𝐮𝐢𝐫𝐞𝐦𝐞𝐧𝐭𝐬 - 𝐥𝐞𝐭'𝐬 𝐭𝐚𝐥𝐤 𝐢𝐧 𝐔𝐩𝐰𝐨𝐫𝐤 𝐂𝐡𝐚𝐭 𝐛𝐞𝐟𝐨𝐫𝐞 𝐨𝐫𝐝𝐞𝐫𝐢𝐧𝐠.

If your application is slow, your business is losing money. I will analyze your React or Next.js application to identify performance bottlenecks and parts that can be improved. This is a strategic session to create a clear optimization roadmap.


react developer react developer react developer react developer react developer react developer react developer react developer front end developer react front end developer react front end developer react front end developer react front end developer react next.js next.js next.js next.js next.js next.js next.js next.js next.js saas developer saas developer saas developer saas developer saas developer saas developer react developer react developer react developer react developer react developer react developer react developer react developer front end developer react front end developer react front end developer react front end developer react front end developer react next.js next.js next.js
Programming Languages
HTML & CSS, JavaScript, TypeScript
Coding Expertise
Cross Browser & Device Compatibility, PSD to HTML, Performance Optimization

What's included $500

These options are included with the project scope.

$500
  • Delivery Time 4 days
  • Number of Revisions 2
4.9
6 reviews
83% Complete
(5)
17% Complete
(1)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)

BC

Bart C.
5.00
Jan 2, 2026
React Developer

AS

Andre S.
5.00
Feb 5, 2022
Software Development ReactJS Yevhen has been working on a complex ReactJS frontend and has exceeded our expectations. He has been a great addition to our team, and we are sad to see him leave after about one year of collaboration. We wish him all the best.

JS

Josh S.
5.00
Sep 14, 2020
Web Developer Ive worked with Yevhen now for 6 months. During this time Ive watched Yevhen solve every problem we gave him. He is very intelligent and dependable developer and the only reason why l am closing our contract is because he has found another opportunity elsewhere. Otherwise, l would never let him go. Thank you for everything Yevhen. You put a smile on all our faces. We will miss you.

JB

Julian B.
4.40
Feb 20, 2020
Javascript Developer - React

IP

Ivan P.
5.00
Dec 18, 2019
VUE.JS DEVELOPER (LONGTERM) - Build frontend of a complex manufacturing app Eugen finished again very well what was requested in the project. He had to make his own research of react libraries and develop a dashboard consuming data through API - and allow drag drop and resize and manipulation of admin dashboard widgets. Finished succesfully. Good job!
Yevhen T.Status: Offline

About Yevhen

Yevhen T.Status: Offline
React developer | Front end developer React | Next.js | SaaS developer
100% Job Success
4.9  (6 reviews)
Zaporizhzhia, Ukraine - 6:34 am local time
Finding a front end engineer who cares about your business metrics is about as rare as finding a developer who enjoys writing documentation – but here we are.

If you want clean, premium engineering without guesswork, I am a Senior React developer and expert Front end developer React specializing in high-performance digital architectures. Over a 7+ year path, my focus has been bridging technical efficiency with real business outcomes. With a 100% Job Success Score, 9,795+ hours on Upwork, $200K+ earned, and Top Rated Plus status, I ensure stress-free delivery. If you need a Front end developer React specialist, a React developer focused on performance, or a SaaS developer who understands growth and retention, I am ready to help.

💼 Core Product Niches

• Complex SaaS Platforms
• Real-Time Analytics Dashboards
• High-Traffic E-commerce
• Web Applications

📈 Verified Track Record

• 9,795+ Billable Hours
• $200K+ Earned on Upwork
• 100% Job Success Score
• Top Rated Plus
• 7+ Years of React Experience

⚡ Proven Engineering Experience

🛒 E-commerce Platforms
Built storefronts, customer portals, merchant dashboards, offer builders, and analytics systems. As a SaaS developer, I align frontend architecture with business goals. As a React developer, I focus on conversion, engagement, and maintainability.

📊 Analytics & Data Platforms
Developed cloud-native platforms, drag-and-drop builders, and reporting tools using Recharts and Echarts. As a React developer and Front end developer React specialist, I build responsive interfaces for complex business workflows.

🔋 Performance & Scalability
Implemented scalable architectures using Redux, Redux Toolkit, RTK Query, MobX, TypeScript, and Next.js. Every Front end developer React project I deliver is designed for speed and maintainability. As a SaaS developer, I understand how frontend performance impacts retention and revenue.

🎯 Cross-Stack Ecosystem Alignment

Architectural choices affect saas marketing metrics. While companies often search for a full stack developer, software developer, or web developer, they frequently discover that an experienced Front end developer React specialist delivers stronger client-side performance and stability.

I collaborate with backend developer teams, python developer teams, and engineering groups building products with Laravel, WordPress, Vue.js, Angular, Node.js, PHP, Python, MongoDB, SQL, and MySQL.

I handle everything from a web application to a full stack next.js solution with a node.js next.js backend or a next.js supabase environment. Whether integrating react developer firebase solutions, working in a front end developer next.js architecture, or collaborating with a react native developer or react native app developer team, I adapt quickly to existing ecosystems.

As a SaaS developer, I collaborate with full stack developer teams building full stack ai saas developer products, webflow developer saas solutions, full stack developer saas platforms, and full stack developer javascript saas ia initiatives.

Choosing Next.js improves speed, SEO, and scalability. Every React developer understands the importance of maintainable architecture. When your business requires an expert Next.js deployment, hiring a Front end developer React specialist accelerates delivery and reduces technical debt. As a react next js developer, I focus on scalable products.

🛠️ Technical Stack

Frontend: React, React.js, Next.js, JavaScript, TypeScript, HTML, HTML5, CSS, CSS3, Redux, Redux Toolkit, Redux Saga, Redux Thunk, RTK Query, MobX, Bootstrap, React Bootstrap, Responsive Design, Front-end Development, Web Design, jQuery, Git.

Backend & Data: Node.js, PHP, Python, Laravel, WordPress, Vue.js, Angular, MongoDB, SQL, MySQL.

Additional Experience: React Native, Web Application Development, SaaS Development, Software Development, Desktop Application Development, Software Design, Software Architecture & Design, Figma, Adobe Photoshop, Graphic Design.

Tools: Shopify Polaris, Polaris-viz, App Bridge, Tiptap, Formik, React Hook Form, Yup, Kameleoon, Segment, Auth0, Recharts, Echarts, Jest, Enzyme, Storybook, Webpack, npm, ESLint.

⭐ Why Partner With Me

• 9,795+ Upwork hours.
• $200K+ earned.
• 100% Job Success Score.
• Top Rated Plus.
• 7+ years of experience.

Whether you need a React developer, Front end developer React specialist, Next.js expert, SaaS developer, or someone who works effectively with backend developer, full stack developer, software developer, web developer, and python developer teams, I can help.

📩 Send me a message with your project scope, and let's build something exceptional together.

Steps for completing your project

After purchasing the project, send requirements so Yevhen can start the project.

Delivery time starts when Yevhen receives requirements from you.

Yevhen works on your project following the steps below.

Revisions may occur after the delivery date.

Bundle Analysis

Identifying heavy dependencies and code-splitting opportunities.

Rendering Patterns:

Choosing between SSR, ISR, and CSR for optimal speed using Next.js.

Review the work, release payment, and leave feedback to Yevhen.