Alexey Belozerov
Software Engineer
Hello! I'm Alexey Belozerov, a Software Engineer and digital nomad. I specialize in developing web applications using technologies like Next.js, React.js, TypeScript, and Chrome Extensions. I also work on AI: MCP, agents, agent harnesses, and skills.
I'm a Senior Product Engineer at Pumas-AI, where I lead the remote team behind one of the company's products, owning its roadmap and releases and working with client-facing scientists to understand what users need. I co-founded WellDoneCode and created the popular browser extension PerfectPixel, which helps web developers achieve pixel-perfect designs.
Projects
PerfectPixel
Creator and lead developer
PerfectPixel allows developers and markup designers to put a semi-transparent image overlay over the top of the developed HTML and perform pixel-perfect comparison between them.
350,000+
monthly users
Chrome Web Store
Edge Add-ons
Firefox Add-onsOpen source
ext-ab-testing
A/B tests for Manifest V3 Chrome extensions: assign, persist and kill experiments with remote config, without a store re-release.
ext-send-chunked-message
Sends large messages over chrome.runtime in Manifest V3 Chrome extensions by splitting them into chunks.
Articles
- HackerNoon
How I Run A/B Tests in a Chrome Extension (Without Re-Releasing to the Store)
A/B testing for Chrome extensions without store re-releases: remote config, kill switches, variant pinning, GA4 tracking, and an open-source MV3 library.
- HackerNoon
Large Files Transfers Between Parts of Chrome Extensions for Manifest V3
A detailed guide on managing large file transfers in Chrome extensions, addressing the 'message length exceeded maximum allowed length' issue.
- HackerNoon
Developing an Easy-to-Use File Structure for an Extensive React Frontend Application
A practical approach to organizing file structures in large React applications for better maintainability and scalability.