Andrey Sergeev Email & Phone Number

- Worked extensively with pure JavaScript in the early stages, gradually transitioning to React.js and basic Redux for developing complex forms and user interfaces.- Designed and implemented the architecture of a comprehensive user portal, focusing on complex user flows, numerous forms, and intricate validation processes.- Utilized Agile Kanban methodology for task management and project tracking, ensuring timely delivery of features and updates.- Maintained and developed all aspects of the application's frontend architecture, from component structure to state management and performance optimization.- Established and maintained a robust documentation base, creating detailed guides, architectural documentation, and coding standards.