> Who I Am
From ZX Spectrum to React. 20+ years of turning complex problems into elegant solutions. Creator of "Vibe Coder" (UA), team leader, community organizer.
Vitalii Petrenko
[ONLINE] Ready for challenges
I'm a full-stack developer and tech leader from Ukraine 🇺🇦 with over 20 years of experience crafting digital experiences that matter.
From building scalable web applications to leading high-performance teams, I specialize in turning complex technical challenges into elegant, user-focused solutions.
As an active member of the tech community, I organize Kharkiv Frontend meetups and speak at conferences, sharing knowledge and inspiring the next generation of developers.
> Journey Timeline
Vibe Coder (UA) & Tech Leadership
Created author channel "Vibe Coder" about mindful development. Speaking at JS conferences, organizing Kharkiv Frontend community.
Senior Full-Stack Architect
Architecture of scalable systems with React, Node.js, cloud technologies. Leading teams of 12+ developers.
Team Lead & Kharkiv Frontend
Started organizing Kharkiv Frontend community. Building and leading development teams, establishing best practices.
ZX Spectrum Era
Started programming on ZX Spectrum, then 8- and 16-bit systems. Understood computer architecture from the ground up.
> Expertise
From 8-bit assembly to modern React. Full-stack mastery meets leadership excellence. Here's what I bring to every project and team.
Frontend
From 8-bit graphics to modern React - crafting pixel-perfect user interfaces
Backend
Building scalable server architectures from bare metal understanding
Leadership
Leading teams, building communities, sharing knowledge through content
Legacy & Modern
Bridging retro computing wisdom with modern development practices
> Latest Posts
Deep dives into modern web development, leadership, and tech innovation
> Published Elsewhere
Sharing knowledge across platforms — from React deep-dives to leadership insights
Full-Stack React Developers: A Light Take on a New Trend
Securing Environment Variables in Remix: A Practical Guide
The Web Architecture of the Future: Why Remix.js Outperforms Next.js in 2025
Hidden Capabilities of Remix.js That Will Transform Your Approach to Markdown Blogs in 2025
Why 85% of Teams Are Implementing Microfrontends Wrong in 2025
Remix v3: The Bold React Breakup That's Reshaping Web Development
Hidden Capabilities of Remix.js That Will Transform Your Approach to Markdown Blogs in 2025
Microfrontends in 2025: A Reality Check from the Trenches
> In Ukrainian (UA)
"Frontend Evolution" series on DOU.ua — about the future of web development from a practitioner's perspective
> Frequently Asked Questions
What technologies do you specialize in?+
I specialize in React, TypeScript, Next.js, and Node.js. With 20+ years of experience, I've worked across the full stack, from ZX Spectrum BASIC to modern web applications.
Are you available for freelance or consulting work?+
Yes! I'm open to both lead roles and development work. I offer consulting on frontend architecture, team leadership, and code reviews. Contact me via LinkedIn or the contact form.
What is your experience with team leadership?+
I've led 10+ development teams, conducted hundreds of code reviews, and mentored junior developers. I founded the Kharkiv Frontend community with 500+ members.
Do you contribute to open source?+
Yes! I maintain several open-source projects including react-terminal-typewriter (npm), visual-js-event-loop (GitHub), and git-autoreview VS Code extension.
Where are you located?+
I'm based in Kharkiv, Ukraine, and work remotely with clients and teams worldwide. I'm fluent in English and Ukrainian.