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Toast Interview Guide

~30% easy, 55% medium, 15% hard · 8 problem suggestions · Arrays & Strings, Hash Maps, Design

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Overview

Toast interviews focus on practical engineering for restaurant technology. System design questions involve POS systems, payment processing, and real-time order management — a domain that's uniquely different from standard web engineering. The coding difficulty is moderate (55% medium, 30% easy). Toast values engineers who can build reliable systems for a high-throughput, low-tolerance environment.

Interview Process

Timeline: 3-5KotlinJavaReactTypeScript
RoundTypeDurationDescription
Phone ScreenCoding45 minOne medium problem
Onsite (3-4 rounds)Mixed45 minCoding, system design, behavioral

Phone screen, then 3-4 onsite rounds: coding, system design, and behavioral. Timeline is 3-5 weeks.

Difficulty Breakdown

30% easy
55% medium
15% hard

55% medium, 30% easy, 15% hard. Approachable with domain-specific system design.

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About Leo Kwan

This AI-assisted guide draws on public sources. Interview processes can change. Last updated 2026-04-03.

Sources

Interview data aggregated from public sources including , as well as public company career pages, engineering blogs, and community interview reports.