The recruitment process for an overseas internship compared to the process for an internal graduate role are actually a bit different. For an internship, we have an online application and screening process, with an interview assessment following that. Depending on the role, with a grad position there are a series of interviews with different members of the business including role-specific aptitude tests and often a casual presentation about what you could bring to the position and how you would implement these changes.
As this was the first time my role had been created, the questions were predominantly based upon what kinds of tasks I felt were my strengths and weaknesses, and how I envisioned the role changing and growing over time.
My tip is to make sure that you know the social enterprise/start up space as best you can, as well as how you see yourself fitting into the role. We look for a cultural fit as much as someone who is great at what they do, so try to learn what you can about Project Everest beforehand and ask questions of us to make us think!