Justin Uberti

Justin Uberti is a highly experienced engineer specializing in real-time AI and voice technologies. Currently serving as a Member of Technical Staff at OpenAI since November 2024, Justin previously co-founded Fixie.ai and held the role of CTO, where responsibilities included establishing the company's direction in real-time voice AI and creating the Ultravox speech model. Prior to Fixie.ai, Justin was a Distinguished Software Engineer at Clubhouse, leading the streaming audio team and launching innovative audio features. Justin's extensive background also includes notable positions at Google Stadia and Google, where contributions encompassed leading engineering teams for cloud gaming and developing the foundational architecture for Google Duo. Earlier career roles included serving as Chief Architect for AOL Instant Messenger and as a Senior Software Engineer at IFusion Com. Justin holds a B.A. with Highest Distinction in Mathematics and Physics from the University of Virginia.