Senior UI Engineer

SaaS: Modernized legacy React code by transitioning from class components to functional components with hooks

• Implemented React Apollo (useQuery and useMutation) for efficient data fetching and state management
• Developed custom hooks to encapsulate and reuse logic across components
• Integrated modern React patterns with existing legacy code
• Improved code readability and maintainability through the use of hooks
• Optimized performance by leveraging React Query's caching and background updates
• Reduced boilerplate code by replacing class lifecycle methods with hooks
• Enhanced separation of concerns by extracting data fetching logic into custom hooks
• Facilitated easier testing of components and hooks
• Improved overall application architecture while maintaining compatibility with existing systems

Pluses of this approach:

• Executed incremental updates to the application interface, introducing three new features based on user feedback; increased overall user satisfaction scores by 25% while maintaining operational continuity throughout the process
• Modernized legacy React code: Converted 60% of class components to functional components with hooks. Reduced average component size by 30% (from 200 to 140 lines of code)
• Converted 60% of class components to functional components with hooks
• Implemented React Apollo: Decreased API call frequency by 40% due to efficient caching
• Improved code readability and maintainability: Increased code review approval rate by 25%
• Optimized performance: Decreased average page load time by 1.2 seconds. Reduced unnecessary re-renders by 45%
• Reduced boilerplate code: Eliminated an average of 20 lines of lifecycle method code per class component

SaaS: React-MUI, RestApi, Jest, React-Testing-Library:

• Developed React components using class-based architecture
• Integrated the React application into a microservice ecosystem
• Created custom components extending Material-UI components
• Implemented comprehensive unit testing using Jest and React Testing Library
• Achieved a high code coverage of approximately 70%
• Ensured compatibility and communication with other microservices
• Customized Material-UI components to fit specific project requirements
• Maintained consistent code quality through automated testing
• Improved application maintainability with a modular, class-based structure
• Balanced custom development with library utilization for efficient development

Internal project: Integrated frontend and backend in a monolithic architecture: React, Nodejs, jest

• Developed custom React components
• Utilized various libraries to enhance functionality
• Created a cohesive application structure combining UI and server-side logic
• Implemented communication between frontend and backend within a single codebase
• Optimized performance for a monolithic React application
• Managed state and data flow in a combined frontend-backend environment
• Developed reusable custom components to maintain consistency across the application
• Integrated third-party libraries with custom components
• Ensured proper data handling between UI and server-side code
• Mentoring young professionals
• Providing frontend interviews

React, Redux, TS, Jest, Enzyme

• Providing and maintaining custom UI-kit
• Creation various types of interfaces
• Code-review process
• Taking a part of planning/grooming of development process