For me it was very smooth process which as follows
1. online Test(Mathematical Puzzle, Logical Reasoning etc.)
2. Telephonic Interview- It was very good conversation with the Interviewer.
3. Telephonic Interview- this interview was about project management and processes.
4. Telephonic Interview- This is again on project management which included change management, Conflicts and other practical scenario.
5. Final- Discussion with HR for Compensation, Processes and benefits.
It was very pleasant conversation with UIPath in all the interviews.