Our company

Chief Executive Officer

Chief Marketing Officer

Leslie Berland is the marketing lead responsible for Twitter’s global consumer, product, and sales marketing and global communications. Leslie also served as chief people officer from 2017 to 2021.

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.

Chief People and Diversity Officer

Dalana Brand is the chief people and diversity officer at Twitter, leading its global people team and Inclusion & Diversity. She works with executive management and the Board of Directors to support the company’s strategic direction. Previously, she was the vice president of People Experience and head of Inclusion & Diversity.

Prior to joining Twitter in 2018, Dalana was vice president of Total Rewards for Electronic Arts, Inc. Before her work at EA, she spent nine years in various senior leadership positions at Whirlpool Corporation. Throughout her career, Dalana has successfully led global teams to design and develop innovative people programs that equitably engage employees, create a fair and inclusive culture, and help advance the business strategy of the company.

Dalana is currently a board member of ColorComm, Compass Family Services, and Enterprise for Youth. Her work has been recognized with awards from several organizations, and she is a frequent industry contributor and speaker on various human resource topics.

Dalana received her MBA with a dual degree in finance and human resources, as well as a B.A. in finance from Michigan State University.

GM of Redbird

Nick Caldwell is general manager for Redbird at Twitter. He oversees a team of engineers, data scientists, product managers, IT, security, privacy, and machine learning teams that build, power, and protect Bluebird and Goldbird. Previously, he was chief product and engineering officer at Looker (acquired by Google) and VP of engineering at Reddit. He also spent 13 years at Microsoft, culminating in a role as general manager of the Power BI product family.

Nick’s charitable work includes board membership for /dev/color, a non-profit organization whose mission is to maximize the impact of Black software engineers. He also founded ColorCode, a scholarship fund dedicated to future leaders of color in technology fields. He is a member of the corporate board of HubSpot.

Nick received a degree in computer science and electrical engineering from MIT and an MBA from UC Berkeley Haas. He holds 10 patents related to natural language processing.

Founder

Jack Dorsey co-founded Twitter Inc. in 2006, and returned as CEO between September 2015 to November 2021. Additionally, Jack co-founded Block (formerly Square), where he serves as CEO and chairman.

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.

VP of Operations and Chief of Staff to the CEO

Lindsey Iannucci is VP of operations and chief of staff to the CEO, focusing on operational excellence across Twitter. She joined Twitter in 2019 as the revenue durability strategy and operations lead. She took on additional responsibilities as the strategy and operations lead for the leadership team over engineering, product, design, and research.

Prior to joining Twitter, Lindsey was a supply chain program lead in Google’s Devices & Services organization. Other roles at Google included operations manager for Google Glass. Before that, she spent over 10 years at Accenture.

Lindsey received her B.S. from Ohio State University in industrial and systems engineering and business.

Chief Customer Officer

Sarah Personette leads Twitter’s customer-facing operations, overseeing global advertising sales, agency relations, revenue operations, and brand strategy consultation. Previously, she was vice president of Twitter Global Client Solutions, where she led partnerships with top marketers and agencies worldwide.

Prior to joining Twitter, Sarah was 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 B.A. from Northwestern University and is a proud wife and mother of two.

Chief Financial Officer

Ned Segal is Twitter's chief financial officer, leading the company’s traditional finance functions along with corporate development, global content, developer, and product partnerships.

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 serves on the board of directors of Beyond Meat, a plant-based meat company, where he serves as a member of the audit committee. He is active with San Francisco non-profits as well, including service as a Board Member of the Tipping Point Community.

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

GM of Bluebird

Jay Sullivan is the GM of Bluebird, Twitter’s consumer products. He is also interim GM of Goldbird, Twitter’s revenue products. Previously he was VP of consumer product. 

Prior to joining Twitter, Jay was at Facebook, where he led the development of Reality Labs’ AI Assistant and then led the Privacy, Integrity, and Systems product teams for Messenger and Instagram Direct, launching many features and improvements that put users first. Jay was also Messenger’s executive sponsor for Diversity, Equity, and Inclusion. Jay led Groupon’s Product, Engineering, Design, Operations, and Research teams as chief product officer, and was SVP of product for Firefox and then COO of Mozilla, where he led major releases and was an evangelist for the web platform and advocate for user choice and control online. 

Jay has also been a start-up founder, has been granted several US Patents, and is a graduate of Yale College.