The process is really common for this kind of company :

• Technical test at home on my free time.
• Technical screening on phone (45 minutes) with live coding (algorithms questions)
• Cultural contribution on phone (45 minutes)
• On-site interview:
  • 2 hours coding challenge
  • 45 minutes of algorithms and data structures questions (whiteboard)
  • 45 minutes of data model questions (whiteboard)
  • 45 minutes of cultural fit questions
  • 45 minutes of questions about the product / the role
• Feedback and offer

Topics include flood fill, streams manipulation, dichotomy search, and other related concepts.