Alexandr Korsak

React & TypeScript developer with 9 years of experience building fast, reliable web applications and SPAs. I help teams ship polished, production-ready frontends - from component libraries and design systems to complete product UIs.

Most of my work has been in security-focused and regulated products, where clean architecture and reliability matter. I'm equally comfortable owning a project end to end, joining an existing codebase, or leading a small frontend team - I spent the last two years as a frontend team lead while staying hands-on in the code.

What I do:
- Frontend apps & SPAs in React, Next.js and TypeScript
- Component libraries & design systems (Storybook)
- State management - Redux, Zustand, TanStack Query
- Performance optimization & build-tooling setup (Vite, Webpack)
- Browser extensions (Manifest V3)
- Responsive, cross-browser UIs from Figma designs

Whether you need a developer to build a feature, take over a messy codebase, or lead frontend on a larger project, I can help. I care about maintainable code, clear communication, and hitting deadlines - let's talk.