There are 2 - 3 rounds maximum, depending on expectations of hiring manager. How it usually works is that the 1st round is skills interview and 2nd is confluence/closing interview.
I applied through a recruiter. The process took 4 weeks. I interviewed at Accenture (Londres, Inglaterra) in Dec 2019
Interview
A pretty smooth and straightforward 3 step interview process. The first 2 were phone interviews, first with HR then a Technical interview with a manager in my area and final case study was in person with an MD.
Interview questions [1]
Question 1
One that stands out was what to do in a situation where 2 banks merge and there are 2 co-CEOs, how would you advise they continue merging.
No feedback / No information about the positive or negative decision - just no contact after the interview The conversation itself was really nice, with a detailed job description and quick office tour