Santosh Janardhan will leave Meta in early 2027 after more than 17 years. Dave Brown will take operational charge as the company sharply expands AI infrastructure spending. Meta's longtime infrastructure chief Santosh Janardhan is set to leave the company in early 2027, ending a more than 17-year stint, according to Bloomberg. During his tenure, he helped build the hardware, data centres and computing infrastructure that supported the social media giant's expansion.