Snap Mobile Engineer interview experience

The phone interview ran about an hour and blended behavioral questions with hands-on technical checks: I had iOS coding that involved debugging via Hackerrank, plus a company-tagged LeetCode medium question.

A few steps later, I went into an onsite that lasted about four hours with four 60-minute interviews. One round asked me to design and implement a Network Client API and use concurrency primitives to deliver results correctly—things like dispatch groups, semaphores, barriers, queues, and session handling. Another round mixed a medium LeetCode problem with an object-oriented angle,