Interview process has 5 stages:
1. Online testing (questions with option, coding with instructions, solving algoritm task)
2. Talk with HR, introduce yourself and ask questions (salary, type of work and so on)
3. Tech interview with live coding (1 hour)
4. Interview with team and CEO (or something like that)
I can't say that it was difficult or long, but you should be ready to explain your solution and discuss it with the interviewer