David B. Email & Phone Number

Top Articles: displays the most popular articles shared in a user’s network, part of the Twitter Blue subscription service offering premium features, currently with over 100K paid subscribers• Led the design and implementation of a new backend service interfacing with Twitter’s Follow Graph API to rank and aggregate links shared by the people a user follows• Drove the creation of Top Articles on Twitter’s web platform using React, Redux, and GraphQLNotes: long-form content that is hosted and shared natively on Twitter• Extended Twitter Web’s rich text editing functionality using the Draft.js React framework to create the Notes Composer• Spearheaded the design of Notes API and persistence layers, exposing new GraphQL APIs that power the Notes experience across multiple clientsMentored 3 team members ranging from an intern to a senior engineer by breaking down projects into tasks, providing guidance during regular one-on-ones, and giving feedback via code reviews

Moments: a product on Twitter that internal curators and external partners use to provide context to culturally significant events and breaking news on the Explore page, generating more than $100M/year• Built the public-facing tool in Twitter Web for Moments using React while also adjusting the Moments legacy backend• Collaborated with Twitter's content curators to build them new internal tools to better manage what’s shown on the Explore pageEnhanced critical security infrastructure for internal systems by allowing the permissions structure to be changed

San Francisco Bay Area

Member of the DM (Direct Messaging) backend team, which is responsible for the server-side code that maintains Twitter’s private messaging systemAdvanced the Encrypted DMs project to completion by implementing various components with Scala and creating a MapReduce job with Scalding that exposes metrics about the featureRepresented the DM team in the development and launch of new app-level rate limits, part of a cross-team information quality effort before the 2018 midterm elections

Greater Boston Area

Worked on the Publisher Incentives team, which is responsible for Twitter’s Amplify program that allows publishers to monetize their videos by running ads before themDeveloped a system using Scala and Thrift through which publishers that violate the Amplify program’s content guidelines would have ads removed from their videos and be banned from monetizing any future videos Implemented front-end changes using React JS to Media Studio, Twitter’s tool for publishers, so that publishers would be reminded of the guidelines when they choose to monetize videos and notified when one of their videos violated the guidelines

New York, Ny

Created an HTML parser using Python for the purposes of analyzing contracts andextracting critical values to monitor the portfolios of the firm’s clientele