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You will get a high-performance Next.js web app migrated from legacy code

Iryna V.Status: Offline
Iryna V. Iryna V.
5.0
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Iryna, priced and ready to go.
Iryna V.Status: Offline
Iryna V. Iryna V.
5.0
Top Rated
Preview image

Let a pro handle the details

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

Project details

Is your current web application slow, struggling with SEO, or built on outdated legacy code? I will migrate your existing React SPA, WordPress, Webflow, or monolithic frontend to a lightning-fast, production-ready Next.js application using App Router.

What you will get:

Seamless migration with zero data loss or broken links

Hybrid rendering strategy (SSR, SSG, ISR) optimized for speed

Core Web Vitals score boost (Lighthouse 90+)

SEO-ready dynamic metadata, XML sitemaps, and OpenGraph tags

Optimized asset loading (next/image, font optimization, dynamic imports)

Clean, scalable, and fully responsive code structure

With 8+ years of frontend development experience, I ensure a smooth transition that enhances performance, improves user retention, and drives organic search traffic.
Programming Languages
HTML & CSS, JavaScript, TypeScript
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Design
What's included
Service Tiers Starter
$325
Standard
$1,500
Advanced
$2,900
Delivery Time 4 days 12 days 16 days
Number of Revisions
123
Number of Pages
1510
Design Customization
-
Content Upload
Responsive Design
Source Code
Optional add-ons You can add these on the next page.
Additional Page (+ 1 Day)
+$100

Frequently asked questions

5.0
28 reviews
100% Complete
(28)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)

JG

Jeffrey G.
5.00
Jul 6, 2026
Webflow Developer (UX + Copy Integration) — Pricing Page, Navigation Fixes & Homepage Updates Great contractor, went above and beyond provided advice beyond scope.

AI

AnswerTab I.
5.00
Sep 4, 2023
Figma design conversion to pure HTML5/JS/Tailwind CSS Great working with Iryna, she delivered as expected

RC

Ray C.
5.00
Sep 4, 2023
Webflow redesign Iryna was fantastic as usual. Everything she implements just works, and never breaks. We have worked with her on multiple projects and plan to work with her again soon.

AM

Adrian M.
5.00
Aug 12, 2023
UX Developer (TailwindUI / TailwindCSS) Iryna is smart, productive and fun to work with. Highly recommended!

RC

Ray C.
5.00
Jun 6, 2023
Webflow integration with a custom backend Iryna has always delivered above and beyond our expectations. She take pride in her work, and even when a tool or technology is new to her, we would rather choose her over someone who claims to be an expert. Highly recommend.
Iryna V.Status: Offline

About Iryna

Iryna V.Status: Offline
Next.js & React Developer | TailwindCss | Full Stack AI Web Apps
100% Job Success
5.0  (28 reviews)
Kyiv, Ukraine - 1:01 am local time
🎈8+ Years of experience | 🥑 Available for full-time cooperation | Full-Cycle Development ⭢ From Figma designs to production-ready AI-powered SaaS and full-stack web applications, using TypeScript and covering API integrations, REST APIs, CMS, animations, performance optimization, scalable architecture, and seamless frontend-to-backend development.

✨ Delivering fast, pixel-perfect web apps with a mobile-first approach. Got a project? Send me a message to get started.

Core Stack:

📌 Frontend & UI: TypeScript, JavaScript (ES6+), React, Next.js (App/Pages Router), Tailwind CSS, SCSS, Shadcn/ui, GSAP, Lottie Animations, Google Maps API Customization.
📌 AI Integrations & Features: Vercel AI SDK, Figma-to-Code via MCP, streaming UI, AI-assisted development, workflow automation, AI-powered internal tools | ai automation, ai developer, ai engineer, full stack ai developer, ai full stack developer.
📌 LLM Integrations: OpenAI & Anthropic APIs, prompt engineering, structured outputs, function/tool calling, RAG, embeddings, vector databases, context management, AI agents, multimodal AI.
📌 Backend & Databases (complex backend): Node.js, PostgreSQL, Prisma ORM, API Integration & Orchestration.
📌 State & Data: React Query, Redux, Zustand, GraphQL, REST APIs (JSON/Data Parsing).
📌 Performance & Architecture: SSR/SSG/ISR, Core Web Vitals optimization, bundle size & load-time reduction, i18n/Multilingual architecture, SEO.
📌 Testing & Workflow: Git/GitHub, CI/CD, AWS Cloud Infrastructure (S3, CloudFront, Amplify/Serverless), Vercel, Netlify, Jest, React Testing Library.

Additional / Earlier Experience:
📌 CMS: WordPress
Vue, Angular, Alpine.js | jQuery, Pug (Jade), Bootstrap

How I Drive Value (Scope & Leadership):

• Architecture & MVPs: Scoping and launching scalable web products from zero to production.
• Performance: Auditing legacy code, cutting bundle sizes, and maxing out page speed.
• Design Systems: Building reusable, accessible (a11y) UI kits for complex apps.
• Full-Stack Debugging: Tracking down and fixing production issues across frontend & backend.
• AI-Powered Backend & Agentic Engineering (Node, Python, PHP): Applying agentic engineering practices - using Cursor & Claude to handle implementation under clear human guidance and test coverage to deliver secure APIs, backend logic, and automated workflows.

Why Clients Choose Me:

• 8+ Years | 4,200+ Upwork Hours: Reliable, top-rated expertise.
• Team Player: A reliable frontend partner for Backend & ML engineers and teams.
• Solo Developer (No Agency): 100% accountability. Fast syncs, direct communication, NDA-ready.
• Business Focus: I build tech that solves product and operational goals.

What I Build (Available for end-to-end development or jumping in at any stage):

• MVPs, Custom CRMs, SaaS, and complex admin dashboards.
• FinTech, real estate platforms, and secure transaction flows.
• High-load, SEO-optimized software & web applications.

Recent Feedback:

⭐⭐⭐⭐⭐ "Iryna made a great job transforming design from Figma to the real landing page. We definitely will work with her again."
⭐⭐⭐⭐⭐ "Worked very quickly and finished ahead of schedule."

Let’s build something that lasts. Direct, reliable, and always available for video calls.
Questions or project ideas? Let’s chat!

Steps for completing your project

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

Delivery time starts when Iryna receives requirements from you.

Iryna works on your project following the steps below.

Revisions may occur after the delivery date.

Codebase & Architecture Audit

I analyze your current app structure, APIs, dependencies, and SEO routing to prepare a migration plan.

Next.js Setup & UI/State Migration

Setting up the Next.js App Router, refactoring UI components, states, and client/server component boundaries.

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