Croatia
I am an educator, speaker and the founder of JS Mastery. With over 110 million views, our hands-on teaching approach to modern web technologies through project-based education has reached 25 million developers in the past year alone. I'm also a React/Next.js enthusiast and GitHub contributor, open-sourcing all my projects and encouraging more than a million developers that follow my work to contribute and innovate in the open-source community.
In 2025, I published 22 tutorials teaching developers how to build and deploy web apps, mobile apps, 3D sites, GSAP animations, and AI tools. Six videos passed 1M+ views and nine crossed 0.5M+. Every project was open-sourced on my GitHub to promote hands-on learning, transparency, and real community-driven open source education.
Video/Podcast / 12-01-2025
Created 20-hour complete Next.js testing course where I teach developers how to test full-stack apps using modern tools. I cover fundamentals and advanced topics like accessibility, visual regression, AI testing, performance, load testing, and show how I build GitHub-powered CI/CD pipelines for production-ready workflows.
Article/Publication / 10-25-2025
At Infobip Shift Croatia 2025, I joined the management team and hosted technical interviews with leading developers worldwide. We discussed Infobip’s platform capabilities, AI advancements, and practical advice for the next generation of engineers, offering insights to help developers grow and stay ahead in the evolving tech landscape.
Speaking (conference/usergroups) / 09-13-2025
Recorded a DevOps “Zero to Hero” video that reached 717k+ views in three months, where I teach core Git, GitHub, CI/CD concepts and demonstrate how to build and deploy a production-ready, scalable Node.js API. I guide developers through pipelines for linting, formatting, testing, and publishing Docker images using GitHub workflows.
Video/Podcast / 09-11-2025
Across multiple YouTube tutorials, I teach developers how to collaborate effectively with GitHub, covering branching, pull requests, and best review practices while demonstrating how AI tools like CodeRabbit can streamline code reviews. My goal is to help teams adopt smarter, AI-assisted workflows for cleaner, faster development.
Video/Podcast / 09-01-2025
In this tutorial, I show developers how to build and deploy a Nike-style eCommerce app using AI tools. I teach how to write effective prompts, use AI to debug and solve problems, and accelerate feature development. This video helps developers adopt AI-assisted workflows and prepare for the future of productive, AI-driven development.
Video/Podcast / 08-22-2025
At Web Summer Camp 2025 Croatia, I taught developers essential React patterns like HOCs, Compound Components, Provider Patterns, Functions as Children, and Portals. Through hands-on exercises and real-world examples, attendees learned to write cleaner, modular, and scalable code while improving performance and maintainability in modern React applications.
Speaking (conference/usergroups) / 07-03-2025
At the React Summit 2025 AI Unconference, I joined Tejas Kumar, Naman Goel, and other community leaders to host open discussions on the future of AI in development. Participants pitched topics live, and I contributed a short talk exploring practical AI workflows, real-world use cases, and how developers can adopt AI tools effectively.
Speaking (conference/usergroups) / 06-13-2025
