Vladimir O.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Accomplished Frontend Developer with over 10 years of commercial experience specializing in building high-performance, scalable web and mobile applications. Proven track record in FinTech (Debt Capital Markets), Betting, and Enterprise SaaS industries. Expert in React ecosystem and modern frontend architecture, with strong focus on state management, robust data-entry forms, and automated testing. Technical Skills Languages: JavaScript (ES6+), TypeScript, HTML5, CSS3 Frameworks & Libraries: React.js, Next.js, Angular (2+), React Native, Redux, React Context, Recompose, Reselect, jQuery Forms & Validation: Final Form, React Hook Form, Formik, Redux Form Styling & UI: Sass, Less, Styled Components, CSS Modules, UIKit, Material UI, Bootstrap, Materialize, Design Systems Testing: Playwright, Jest, Vitest Tools & Build Systems: Git, WebStorm, Figma I'm a passionate about coding, a fast learner, responsive. Thinking of a new solution for your business? Let us implement your idea into an awesome project!