Rahayu Oktaviani is a primatologist, co-founder of Yayasan Konservasi Ekosistem Alam Nusantara (KIARA), and lead researcher at the Javan Gibbon Research and Conservation Project. Since establishing KIARA in 2020, she focuses on research, conservation, education, and community engagement. Rahayu actively works with local communities in Citalahab Central Village, empowering women through the Ambu Halimun program to foster sustainable livelihoods and amplify their voices.