"How to create an interview rubric that actually works"
"The best engineering interview question I've ever gotten" Part 1 Part 2: The challenge: Modifying memcached -- Via its incr and decr commands, memcached provides a built-in way to atomically add k to a number. But it doesn’t provide other arithmetic operations; in particular, there is no "atomic multiply by k" operation. Your programming challenge: Add a mult command to memcached.
"Backend challenges": A public list of open-source challenges from jobs around the world.
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Last modified 30 July 2025