I applied online. The process took 2 months. I interviewed at Citi (Singapore) in Sep 2018
Interview
There were several phone calls asking mostly technical questions, followed by face to face interviews at the company's office. These would be with more senior bankers, who will ask higher level questions.
Interview questions [1]
Question 1
How would you value a company without revenues or profits?
behavioral questions:
fit questions
introduce yourself
why firm + why spring week
recent deal/news you've been looking at
competency questions: tell me about a time when you teamwork/leadership/adapt to quick changes
Completed an online application, then had a first round and then a superday. First round was only 30 minutes, superday was 1.5 hours. Whole process took less than 2 months