William He Email & Phone Number

San Francisco, California, United States

San Francisco Bay Area

» Led design on AI analytics testing automation platform that reused user interface components in React and Javascript ES6; managed application state using Redux, working with $80 billion dollar companies» Worked on 3-4 different projects simultaneously and prioritized workload to meet company deadlines» Revamped build system from webpack v1 to v3, reducing gzipped bundle size by 45kb improving build times by 20%» Created a dynamic global filter using query parameters that stores data in redux to display different summary and detail pages while reducing network calls by 75% and improving rendering speeds of 50% on new queries» Incorporated a responsive UX experience by creating custom grid layout system to respond to changes in viewport size» Enhanced application stability and limited network calls by applying smart throttling rules at load and route changes» Integrated deprecated data properties fallback function for backwards compatibility on query searches» Led with PMs, FE engineers, designers and BE engineers in weekly stand ups and sprint planning

Greater Los Angeles Area

» Spearheaded front-end development for an enterprise real estate business application throughout the life of the application» Upgraded application security by throttling login attempts based on failed login attempts per user and constructed security features such as timeout logout when JSON web tokens and cookies are not confirmed by the server» Improved UI by building higher-order components that redirect to login when unauthorized users connect to private routes» Enhanced UI/UX by creating modal menu that connects to multiple features of the application and utilized React-Select to create an extensive “QuestionDetail" component that outputs different types of questions for search criteria» Implemented open socket channels to enable real-time updates without page reload to accelerate user actions» Improved load times reducing number of network calls by 70% by rehydrating Redux store from a persistent client storage» Increased property listing database by applying a file upload system that would parse PDF real estate listings turning them into usable JSON data objects for Search route» Built an internal emailing system that connects to existing email via oauth to help send invitations for tour properties » Algorithmically generated custom tour components that consists of permutations of tour schedule by utilizing Google Direction API» Sole developer of client side analytics to track growth, user traction, and effectiveness of agile sprints and new features

Greater Los Angeles Area

**Github/trending on launch week with over 2,300+ stars and 10,000+ users**www.reactsight.com» Leveraged React Internal Instance to traverse DOM and generate real-time visualizations of component hierarchy tree» Generated a dynamic, interactive tree-like structure by utilizing D3 to display each React component and its children» Implemented D3’s diffing algorithm to scan the virtual DOM and only render altered data for improved load times» Established persistent data bridge between user application and React-Sight Chrome dev tool with content scripts and postMessages» Dynamically patched React’s lifecycle methods to track changes in state to provide real time picture of the application’s data» Placed a throttle on setState in order to ensure optimal load times and prevent applications from overloading on load or route switches» Incorporated a responsive UI experience by using Bootstrap’s grid layout system to respond to changes in viewport size» Created compatibility filter hooks for web applications running in React or React Fiber rendering engines