Kristiyan Velkov

Kristiyan Velkov

Front-end Advocate | Speaker | Author
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About

I'm Kristiyan Velkov – a Front-end Tech Lead with over a decade of experience building scalable, performant web applications using React.js, Next.js, Angular, and TypeScript. I specialize in crafting clean, maintainable UIs that are not only fast but also accessible, secure, and ready for production from day one. I’m the author of Mastering React.js Interviews: From Zero to Hero, a practical guide for developers looking to break through to the next level in their careers. I care deeply about developer experience, code quality, and delivering real business value. I actively share insights on React, TypeScript, and Docker, and I'm passionate about helping other devs grow—whether through writing, mentoring, or building tools that make the web better.

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Github.com
Substack.com
Medium.com
LinkedIn.com
X.com

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Kristiyan Velkov•

10mo ago

BOOK: Mastering React.js Interviews - Your ultimate guide to real-world React.js 19 interviews.

This book is your roadmap to crushing React.js interviews. Based on 350+ real-world questions from top companies, it delivers clear, practical answers that boost your confidence, sharpen your skills, and help you stand out in mid and senior front-end roles.
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