Vladyslav Kravchenko

Led the development of 6 cross-browser extensions for 200,000+ users, enabling full customization of social media experiences. Designed and implemented an admin panel for tracking and resolving 50+ bugs and delivering 10+ user-requested features. Built an end-to-end testing infrastructure using Selenium, reducing bug reports by 20%. Developed a custom AI workflow that reduced token consumption and code generation time by 50%. Implemented an OpenAI-powered feature for automatic YouTube video translation and summarization, generating 500+ new Pro subscriptions. Collaborated on architecture refactoring with the team lead and mobile team — reducing server load by 30% and eliminating a critical bug causing 2–3 second load delays on mobile devices. Proposed and implemented an admin panel feature allowing targeted bug fix releases without code changes, accelerating minor releases by 50%.

Developed a product-grade crypto escrow platform enabling secure peer-to peer transactions. Enhanced application security by creating a 2FA module and integrating hardware security keys YubiKey. Collaborated with back-end teams to implement crypto deposit and withdrawal modules into the user account system. Implemented user chat using Socket.io and HTTP requests. Built and documented 40+ reusable components in an internal component library using Storybook. Improved Core Web Vitals by 40% on mobile and desktop through image delivery optimization, elimination of unnecessary code, and caching heavy operations with Service Workers.