Yaroslav Klymenko

Profile Title
Full-Stack Web Developer | React, Astro, Node.js, Vercel

Profile Description
I build fast, well-structured, production-ready web products with a strong focus on architecture, performance, and clean UI. I work with modern frontend technologies such as React, TypeScript, Vite, and Astro, as well as backend development with Node.js, Express, API integrations, and PostgreSQL/Neon. I also have experience with AI products, Vercel deployment, and quality assurance using Playwright and Vitest.

I can help clients who need responsive websites, landing pages, custom web applications, SSR solutions, API integrations, Vercel deployment, and AI-powered web functionality.

Short Bio
I design and develop modern web products with a focus on structure, speed, and reliability. I work with React, TypeScript, Astro, Node.js, Express, Tailwind CSS, Neon/PostgreSQL, and Vercel. My approach combines clean architecture, adaptive UI, and production-level implementation.

Main Stack
React 19, TypeScript, Vite, Astro, Tailwind CSS, Node.js, Express, Handlebars, Neon PostgreSQL, TanStack Router, TanStack Store, Git/GitHub, Vercel, Figma, Vitest, Playwright, Testing Library, AI integrations

Skills
Website Development, Front-End Development, Full Stack Development, React, TypeScript, Node.js, Astro, Tailwind CSS, API Integration, Vercel, Landing Page, Responsive Design, Web Application, AI App Development, Performance Optimization

Languages
Ukrainian — Native
English — Working proficiency

Portfolio 1
Name: AICHAT
Description:
An AI chat platform built with TanStack React Start and Vite, featuring support for multiple AI providers, Neon DB, and a modern TypeScript architecture.
Technologies:
TypeScript, React, TanStack Start, Vite, Tailwind CSS, Neon PostgreSQL, AI integrations, Vercel
Link:
https://aichat-rho-six.vercel.app/

Portfolio 2
Name: GREENSHOP
Description:
A landing page built with Astro and deployed on Vercel, featuring optimized static markup and a responsive UI.
Technologies:
Astro, HTML, CSS, Vercel
Link:
https://green-shop-ashy-eight.vercel.app

Portfolio 3
Name: FUTURETECH ACTRO
Description:
A content-focused web project built with Astro, deployed live on Vercel, with a strong emphasis on fast page loading.
Technologies:
Astro, HTML, Vercel
Link:
https://future-tech-actro.vercel.app

Portfolio 4
Name: VIBE BEAUTY STUDIO
Description:
An SSR website for a beauty studio built with Express and Handlebars, using Tailwind CSS, vanilla JavaScript, Notion API as a CMS, PostgreSQL caching, Vercel deployment, and Playwright testing.
Technologies:
Node.js, Express, Handlebars, Tailwind CSS, JavaScript, Notion API, PostgreSQL, Vercel, Playwright
Link:
https://vibe-beauty-studio.space/

Portfolio 5
Name: KLIMENKO PORTFOLIO
Description:
A responsive portfolio website with a multilingual interface, working contact form, and interactive neon background.
Technologies:
HTML, CSS, JavaScript, Responsive UI
Source:
https://github.com/Gliperv7

FAQ

What kind of websites can you create?
I create landing pages, business websites, content-driven websites, SSR projects, and custom web applications.

Do you work with modern frontend stacks?
Yes, my core stack includes React, TypeScript, Vite, Astro, and Tailwind CSS.

Can you build AI-powered applications?
Yes, I have experience with AI chat products, integrations with multiple AI providers, and production-ready web architecture.