Meta·Software Engineer·Onsite - Coding / Algorithms
Jun 2026
Meta software engineer interview covering a mix of stack-based simulation, interval scheduling, tree traversal, and selection algorithms. Pretty standard Meta coding lineup if you've seen their question pool before.
- Given a list of function call logs with start and end timestamps, calculate the exclusive execution time for each function.
- Given an array of meeting intervals, find the minimum number of conference rooms required to hold all meetings.
- Given a binary tree, return its nodes grouped by vertical column order from left to right.
- Find the Kth largest element in an unsorted array.
“Stack problem but the off-by-one stuff in the time calculation tripped me up.” The rest of the author's notes on Software Engineer interview at Meta, Onsite - Coding / Algorithms round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.
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