Varun Varier

Gathr:

Developed data visualization dashboard product for enterprise and government clients to facilitate interactive data exploration.

Major highlights include:

Developed an interactive slicer system that supports multiple data types and improves how users explore and filter large datasets.

• Implemented a hierarchical slicer for up to 5 levels of non-aggregate fields, allowing users to drill down into complex data structures.
• Designed a range slider for aggregate values and a relative datetime slicer for date/time/datetime based filtering, ensuring smooth interaction with various data types.
• Supported both page-level and full-dashboard filtering, giving users flexible control over data views.

Developed a KPI visualization with customizable goals, thresholds, and trend indicators to track key performance metrics effectively.

Technologies used: Angular, D3.js, NGRX, RXJS, REST API, GraphQL, Websockets.

• Contributed to the frontend migration of government banks from plain JavaScript and jQuery to React enhancing code maintainability and performance.
• Collaborated with cross-functional teams to modernize legacy UI components into modular, reusable components improving developer productivity and user experience.
• Refactored existing codebase, and implemented best practices for state management and component structure.
• Optimized and improved Page load time resulting in better user experience.

Technologies used : React, Redux Toolkit, REST API, Node.Js, PostgreSQL