15-minute screen with the Talent Acquisition, video interview with the hiring manager (Ian), interview with hiring manager's subordinates, case study (given a week to prepare), present case study.
This is a "work hard, play hard culture". They want you to do the work of a manager and prepare for a week-long case study but pay you like a 1st-year analyst.
The salary is far too low for a senior analyst, despite the 40% bonus that isn't guaranteed, which will be taxed at 25% alone, This is a cheap way to pay the employees less rather than paying them a competitive salary.