GitHub CEO and leadership

Mike Hanley is the Chief Security Officer at GitHub. Prior to GitHub, Mike was the Vice President of Security at Duo Security, where he built and led the security research, development, and operations functions. After Duo’s acquisition by Cisco for $2.35 billion in 2018, Mike led the transformation of Cisco’s cloud security framework and later served as CISO for the company. Mike also spent several years at CERT/CC as a Senior Member of the Technical Staff and security researcher focused on applied R&D programs for the US Department of Defense and the Intelligence Community.

When he’s not talking about security at GitHub, Mike can be found enjoying Ann Arbor, MI with his wife and six kids (soon to be seven!).

Shelley is the Chief Legal Officer at GitHub, where she leads teams responsible for Trust and Safety, Social Impact, Developer Policy, Product & Regulatory Legal, Commercial Legal, and Legal Operations. Shelley started her career at Microsoft supporting parts of the Developer Division in 2005. Prior to joining GitHub, she was the head of Microsoft’s Technology and Corporate Responsibility organization, where she oversaw a team that drove the use of technology to benefit society through priorities such as Accessibility, Environmental Sustainability, Broadband Access, Responsible AI, and Justice Reform. She has also led legal, corporate, and external affairs teams across Europe and worked on products in Microsoft’s gaming division, including developer communities and Xbox Live. Prior to joining Microsoft, she was legal counsel at Wizards of the Coast, where she supported the “Dungeons & Dragons” and “Magic: The Gathering” brands.

Julio Avalos is an Executive at GitHub, Board Member at GitHub, and Chief Business Officer at GitHub and is based in San Francisco, California.