Sergei Vinogorov
Frontend Engineer with 6+ years of commercial experience of building React-based high-load applications. Worked at FinTech, SaaS, crypto projects.
About
Frontend Engineer with 6+ years of commercial experience of building React-based high-load applications. Worked at FinTech, SaaS, crypto projects.
- 6 years' experience
- Joined October 2025
Industry experience
- Software & Internet
- Professional Services
- Media & Entertainment
Work experience· 5 roles
Designed and implemented a modular frontend architecture, reducing feature delivery time by 15% for a rapidly scaling fintech platform. Improved GitFlow practices, facilitating structured peer code reviews and cutting review cycles by 30%, while catching critical bugs earlier. Built and maintained scalable UI components in React + TypeScript, ensuring performance, accessibility (WCAG compliance), and responsiveness.
Refactored large-scale SaaS frontend architecture, improving application performance by 40% and reducing load time by 25%. Delivered 10+ major features while optimizing build pipelines with Webpack and Vite, cutting deployment time by 20%. Collaborated with product owners, designers, and backend teams to align UI/UX with business needs and ensure smooth cross-team delivery. Partnered with designers to implement consistent UI patterns and improve design-system adoption.
Delivered Vue.js dashboards and analytics, boosting data visualization performance by 25%. Built a React COVID-19 widget adopted by an information portal, serving 100,000+ daily users. Introduced reusable Vue components and modularized state handling, reducing new UI feature delivery time by 30%.
Education
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