Shana Kempfer

Led frontend development and architectural decisions for a major e-commerce platform. Migrated 70% of legacy code to React with TypeScript, improving maintainability. Built two core modules and introduced Storybook to enable reusable components and faster UI development. Improved UX and eliminated 100% of support tickets related to report generation. Implemented client-side xlsx processing, reducing backend load and response time. Increased test coverage by 30% and mentore developers to improve code quality

Full-stack developer on a multicultural team across multiple time zones Redesigned the Dubai portal using React, improving engagement and property discovery Built web scrapers that expanded platform coverage by 40% Enhanced data quality by 30% through new backend validation features Maintained and optimized legacy backend systems for better reliability

Full backend migration from Node.js to Elixir, improving scalability and reducing latency Increased test coverage from 20% to 100% Optimized processing time for reports and file operations, enhancing user experience Implemented Storybook as standard for all components, requiring full documentation Developed features using Relay/GraphQL with relational databases Delivered ServiceNow-integrated solutions compliant with SLAs

Developing and modernizing high-traffic streaming platforms serving millions across Latin America. Led the migration from a legacy frontend to React, TypeScript, and Tailwind CSS. Built accessible UI components following WCAG standards and helped maintain and refactor legacy systems while delivering new features. Played a key role in launching Device Manager, reducing support tickets related to device management by 90% and recognized internally as a major project of 2025.