Andrew Hannebrink

● Solely authored the bike-sharing admin app used at Facebook’s headquarters with Angular and Firebase. ● Visually represented the live flux of 850 bikes across 48 lobbies, allowing >40 staff members to make hundreds of new real-time insights for location balancing. Currently archiving >30,000 user-submitted entries/month. ● Prevented data usage bill from exponentiating into the >$1,000 range by refactoring database schema and queries, while maintaining the app’s real-time feel, and continuing to index every data point in existence. ● Managed password-protected user accounts and sign-up UI/UX by forking my open-source repo, Authencado.

● Rapidly delivered features for the world’s 2nd largest dating platform with Angular, Node.js, and Google Closure UI/Library for desktop and mobile browsers in a continuous integration development cycle. ● Implemented country-specific UI experiments that simplified profile interactions and improved user experience, resulting in 30% more accepted greetings, and 7% more bookings. ● Led technical makeover of our Help Center which curtailed customer support emails, saving us from hiring a full-time employee, while still dynamically supplying users contact methods in 23 languages across 39 locales. ● Won 1st place in company Hack Day by allowing users to donate to charities during special in-app purchases.

● Worked in a 6-engineer team to develop a web and iOS app for video conferencing, live document and image sharing, and synchronized video streaming using AngularJS, WebRTC via Licode, and UI-Bootstrap. ● Greatly reduced vectors for XSS attacks by 99.9% by architecting app-wide form validation using combination of custom and existing Angular directives for sanitizing inputs and whitelisting characters. ● Followed JavaScript OOP principles to create module for panning and zooming through content in real time. ● Migrated front-end build and unit test processes from Grunt to Gulp, enabling us to build with ES6 via Babel. ● Constructed E2E and unit tests for deployed API instances using Jasmine, automating the tasks with Grunt. ● Enabled users to switch cameras, microphones, and external speakers using the WebRTC API. ● Implemented in-browser keyboard shortcuts for navigating menus, browsing content, and controlling videos.