Natalia Karaseva
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Frontend Developer — React, Next.js & Angular

4 years building production web applications · Enschede, Netherlands

I build product interfaces and reusable UI systems with TypeScript, React/Next.js, and Angular — from Figma and component architecture to testing and production.

About me

I have been building production web applications since October 2022: three years of Angular in healthcare, and React and Next.js today. Most of my work starts at a Figma file and ends in production — component architecture, design tokens and a shared UI library, state and API integration, responsive and cross-browser layouts, accessibility, Storybook, and unit and end-to-end tests with Vitest, Cypress, and Playwright. I like taking a feature end to end and shipping it genuinely finished: consistent with the design, true to the requirements, tested, and fast.

At Neolook I built the frontend of healthcare software for neonatal and pediatric intensive care, deployed in hospitals including Máxima MC, UMC Utrecht, and UMC Groningen: real-time camera monitoring over Server-Sent Events, multi-person video calls with WebRTC, license-based feature and route protection, Dutch–English localization, and dark mode. Today, at Junior Einstein, I work on a large educational platform for primary schools — not one application, but several connected products on different stacks: a webshop and content pages on Next.js, and the learning environment itself as a React SPA. I build product features and reusable UI components with MUI, shadcn/ui, and Tailwind CSS, keep the interface faithful to the design, and shape the Figma-to-React workflow the team uses to turn designs into components.

Tech stack

  • React
  • Next.js
  • Angular
  • JavaScript
  • TypeScript
  • Tailwind CSS
  • Claude Code
  • OpenAI
  • HTML
  • CSS
  • MUI
  • shadcn/ui
  • Storybook
  • Figma
  • Docker
  • Git

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