Pavel Romanchenko Email and Phone Number

• Successfully migrated a microfrontend to TypeScript and developed complex UI components, including Affix Anchor Menu, Infinite Scroll, and Drawer.• Played a role in migrating logic to microfrontends using the latest technologies.• Released features such as Test Drive, Delivery ETA, and Pre-account Favorites, and developed a complex form with shared state and validation via creating, and maintaining AB test scenarios.• Worked on the checkout M E flow, including handling sensitive data during payment flows.• Optimized the search MFE functionality by improving car list rendering performance, injecting ads, and updating the design.• Redesigned the car gallery MFE and added new features, such as a complex user-friendly contact form and a "add to favorites" flow.• Created an improved user profile MFE, which included infinite scroll for each list section, optimized loading, and caching queries for faster performance.• Collaborated closely with product management and design teams to create new user flows and update the design for existing ones.• Created shared components that were used across all microfrontends, leading to faster development cycles and increased code maintainability.• Added social auth, which provided the ability to log in via popular auth services, such as Facebook, Google.• Worked with performance measurement and optimizations via different tools such as Lighthouse, Web Vitals, increasing perceived performance value.• Deprecation and decommission process of unused libraries. Finding and cleaning redundant code across all MFE and shared packages.• Redesigned the entire MFE, including creating new CMS templates and translation keys. Adding optimized images.• Worked on the release process, including creating release notes, supporting builds, and managing CI/CD with Jenkins.

Dr. Agent (Novartis):• Collaborated with backend and BA teams to develop efficient data contracts using d3 and recharts, resulting in effective data analysis charts.• Assisted the backend team by generating CV reports and notifications with Python, Celery, and Flask, reducing workload.• Improved codebase quality by adding unit testing coverage for UI flow and maintaining complex business logic, forms, and charts using Typescript, Redux-Toolkit, and React.Marqeta: • Developed role-based access control to safeguard user data on frontend and backend, enhancing security.• Increased test coverage for large features using e2e and unit testing, such as card management dashboards and UI-kit components.• Contributed to report generation system using Typescript, Node.js, and mustache.js for efficient report generation.• Implemented mock server to reduce testing efforts.• Worked with sensitive user data, following OWASP principles. • Gained expertise with BFF using graphql data resolvers and custom scalars, improving understanding of these technologies for future projects.