Our company

CTO

CMO

Leslie Berland is the marketing lead responsible for Twitter’s global consumer, product and sales marketing and communications. A core part of Leslie’s focus is to align the company’s external brand identity with the internal culture that defines Twitter.

Prior to joining the company in 2016, she was executive vice president of global advertising and marketing and digital partnerships at American Express. As a member of the company’s global management team, Leslie oversaw advertising, media, sponsorships, content, brand identity, and digital partnerships. Earlier in her career, Leslie led PR and online communications strategies for global brands on the agency side. Leslie joined American Express in 2005 and led a global team responsible for creating marketplace demand and driving commerce through differentiated products, marketing, and customer experiences globally.

Her marketing work has been recognized with several awards from the Cannes Lions, D&AD, FEPE, OBIE, and One Show. In 2017, 2018, and 2019, Leslie was named one of Forbes’ Most Influential CMOs, and she has also been recognized by Ad Age, Adweek, and Business Insider as an industry leader.

Leslie earned a B.S. from Boston University’s College of Communication.

CHRO

Jennifer Christie is the chief human resources officer at Twitter, leading its global people team and working with executive management andthe board of directors to support the company’s strategic direction.

Prior to joining Twitter, Jennifer was senior vice president and head of human resources for the Global Consumer Services Group at American Express. Before her work at American Express, Jennifer was a consultant at a leading executive search firm and spent two years as a special assistant to the president of the United States in the White House Office of Presidential Personnel. Her career began in the federal government, where she worked for more than a decade to support community safety and implement offender reentry initiatives. Previously, she also served on the board of directors for both the Prevent Cancer Foundation and Compass Family Services. 

Jennifer earned a bachelor’s degree in political science from the University of North Carolina at Chapel Hill and her master’s degree in criminal justice from George Washington University.

Head of Design and Research

Dantley Davis leads design and research at Twitter. Prior to joining Twitter, Dantley was at Facebook, where he led product design for Stories, News Feed, and Video. He spent seven years at Netflix, where he was responsible for design and product strategy for television and mobile experiences. His work transformed streaming user interfaces across the SVOD industry.

Dantley received his undergrad degree and MBA from the University of San Francisco.

CEO

Jack Dorsey co-founded Twitter Inc. in 2006, and returned as chief executive officer in September 2015. Additionally, Jack co-founded Square, where he serves as CEO and chairman.

Revenue Product Lead

Bruce Falck is the revenue product lead, overseeing the strategy and execution of advertising products for marketers on Twitter. For over two decades, Bruce Falck has built a deep understanding of monetization and digital advertising. He was most recently CEO of Turn which sold to Singtel/Amobee. Prior to Turn he was COO of BrightRoll, the leading programmatic video ads platform, which sold to Yahoo. He also spent eight years at Google, where he helped build and lead multiple billion-dollar-plus advertising businesses including the Google Display Network, DoubleClick Bid Manager (DBM), and Google’s Advertising Exchange.

Bruce graduated from Stellenbosch University in South Africa with a degree in computer science.

Head of Legal, Policy, and Trust

Vijaya Gadde is Twitter’s legal, public policy, and trust and safety lead. Prior to joining Twitter in 2011, Vijaya was senior director, legal at Juniper Networks; previously, for nearly a decade she worked at Wilson Sonsini Goodrich & Rosati. Vijaya serves on the Board of Trustees of NYU Law School and the Board of Directors of Mercy Corps, a global humanitarian aid and development organization, which partners with communities, corporations, and governments. Vijaya is also a co-founder of #Angels, an investment collective focused on funding diverse and ambitious founders pursuing bold ideas.

Vijaya earned a J.D. from New York University School of Law and a B.S. in industrial and labor relations from Cornell University.

Engineering Lead

Michael Montano leads Twitter’s global engineering team. Before joining Twitter, he co-founded BackType to focus on organizing online conversations and helping people follow what was being talked about. The company created and open-sourced the Apache Storm project, a distributed realtime computation system. BackType was acquired by Twitter in 2011. Since joining Twitter, Michael has led teams across the platform, advertiser products and the consumer product.

Michael grew up in Canada and studied Electrical and Computer Engineering from the University of Toronto.

Chief Customer Officer

Sarah leads Twitter’s customer-facing operations, overseeing global advertising sales, global content partnerships, revenue operations, and emerging businesses. Previously, she was the Vice President of Twitter Global Client Solutions, where she led partnerships with top marketers and agencies worldwide.

Prior to joining Twitter, Sarah was the Chief Operating Officer of Refinery29. She also worked in various senior leadership roles at Facebook, Universal McCann Worldwide, and Starcom Mediavest Group. 

Sarah serves on the boards of All In Together, Modern Marketing Association (MMA), and the Northwestern Alumni Association.

Sarah holds a bachelor’s degree from Northwestern University and is a proud wife and mother of two.

CFO

Ned Segal is Twitter's chief financial officer, leading the company’s traditional finance functions along with corporate development and business development.

Prior to joining Twitter, Ned was senior vice president of finance for Intuit's Small Business Group, responsible for the division’s financial and strategic planning. He has also served as chief financial officer of RPX, the leader in patent risk management solutions to technology companies around the world, and spent 17 years at Goldman Sachs, most recently as managing director and head of global software investment banking. Ned also serves on the board of directors of Beyond Meat, a plant-based meat company, where he serves as a member of the audit committee.

Ned received his B.S. from Georgetown University. He resides in San Francisco with his wife and three children.

Head of Security

Peiter “Mudge” Zatko is the head of Twitter’s global security team. Over the course of his career Mudge pioneered many of the technical aspects the cybersecurity field is built upon and held senior leadership positions in DARPA, Google, and Stripe. He is the recipient of the highest medal able to be bestowed upon a civilian by the Office of the Secretary of Defense.

Mudge is a practicing brown belt in the art of Brazilian Jiu-Jitsu and an accomplished musician with an undergraduate degree from Berklee College of Music.