Dian Ratna Sari possesses extensive experience in executive assistance and general affairs, currently serving at Lumina (YC W22) since December 2021. Prior roles include executive assistant positions at TMF Group, CQUniversity, Aurecon, Deloitte, and McConnell Dowell, where responsibilities encompassed schedule coordination, meeting preparation, relationship management, and administrative support for senior executives. Dian has a strong background in maintaining effective communications, organizing corporate events, and managing documentation for both local and international stakeholders. Education includes a Bachelor of Arts in English Language and Literature from BINUS University.