Three rounds:
1) Initial phone screen with recruiter
2) Phone screen with team manager
3) Onsite to meet with members of the team
It was a great process interviewing with LevelUp. Everyone who I met was super nice, smart, and driven. The recruiter moved quickly with a ton of transparency which I appreciated. Onsite interview included two mini case studies which weren't too hard. They went with someone with more startup experience but it was still a great experience.