A really interesting and challenging interview process.

The HR process was quite long.

There were 7 stages:

• LeetCode medium task
• 1-hour call with a coding task
• 1-hour call with an algorithms task
• 1-hour call discussing current architecture and design approaches
• 1-hour call with the Engineering Manager to check motivation and soft skills
• 1-hour call with a System Design task
• 1-hour call with an iOS-specific coding task

All stages were interesting, with practical tasks. The interviewers were friendly and did their best to reduce stress and create a relaxed atmosphere.

HashMap with extra tasks + tests

Ability to work under stress. Tell about a conflict you experienced and how you solved it. Do you have mentoring experience?

Design photos news feed + API.