In progressOnsite

Two Coding Rounds, System Design on Inventory, Waiting on Results

InstacartSoftware Engineer · Onsite · Oct 2026

While preparing I kept grinding system design, and it turned out my coding wasn't as fast as I thought it would be. One round was "Calculate Equation Expression": you're given a set of variable assignments and have to compute the value of a specified variable. Part one: the right-hand side is either a number or another variable, so you just recurse down. Part two adds addition and subtraction, an…

Shared by a candidate · reported Oct 2026. Interview formats change; use it as a guide, not a script.