I went through an online initial interview with a panel of 3 people (1 HR and the other 2 were the direct users). Then I was invited for an in-person written test followed by a second interview, almost a month later, at their HQ in South Jakarta.
The ambience was a bit stiff (due to ASEC's diplomatic nature), but the panellists were nice and their questions were direct, though it was arguably one of the longest interviews I've been to throughout my professional journey.