Design a bus simulation metric

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Quick Overview

This question evaluates a candidate's ability to comprehend and navigate a large unfamiliar codebase, safely make targeted code changes, and design, instrument, and validate a meaningful simulation efficiency metric, covering code comprehension, incremental development, and measurement design.

Design a bus simulation metric

Company: Instacart

Role: Software Engineer

Category: Software Engineering Fundamentals

Difficulty: hard

Interview Round: Onsite

Overview: This question evaluates a candidate's ability to comprehend and navigate a large unfamiliar codebase, safely make targeted code changes, and design, instrument, and validate a meaningful simulation efficiency metric, covering code comprehension, incremental development, and measurement design.

Read the full Instacart Software Engineer interview experience this question came from

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Instacart
Jan 29, 2026
hardSoftware EngineerOnsiteSoftware Engineering Fundamentals
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