The whole process has lasted around 2 months for me. Starts with CV screening and basic motivational questions, then followed up with online assessment (intelligence/aptitude, situational and behavioural/match with ING Orange Code). Throughout the selection process, you are contacted multiple times by recruiter who guides you through the process and prepares you for each stage which felt personal and increased my appreciation for this company. Then you are invited to the in-office 1-hour interview with trainee manager and (previous) trainee, where they ask you a lot about motivation for this role, for particular domain of your choice, and a lot of situational questions (Tell me about time...). Use STARR method, and pro tip: prepare examples in advance, mostly based on your core competencies highlighted after online assessment, because you won't have enough time to think of it on spot. Last stage in this selection process is the business panel, but to which I was not invited.

1 Background screen, 1 Test, 2 Behavioral Interviews. Everyone was really nice and kind. The second interview is with more senior members of ING. Still haven't heard back yet regarding an offer, but keeping my fingers crossed.