Top 50
Prep plan
Updated weekly · Last refresh Oct 17

Gusto Software Engineer Interview Questions

The questions to prepare for a Gusto Software Engineer interview. Questions from real interview reports rank first. Updated daily.

50questions
~12htotal time
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1
CodingStart here. 20 questions · ~278 min
Distribute Amount Based on ReceiptsMedium
Practice

Distribute an amount fairly across capped recipients, assigning indivisible units alphabetically.

ArraysArray ManipulationAlgorithmsGusto
Implement a Simple Key-Value StoreHard
Practice

Implement key-value operations and retrieve the value associated with a key at an effective timestamp.

data persistenceData Structuresedge casesGusto
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2
System Design17 questions · ~237 min
Social Polling App System DesignHard

Design a social polling app that supports poll creation, voting, reliable results, and optional ML-powered poll discovery.

ML Rankingdistributed systemsdesignGusto
Restaurant Employee Management SystemHard

Design a restaurant employee management system, clarifying where ML adds value and how it should operate reliably.

Feature Storedesignfailure modesGusto
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3
SQL & Data Manipulation5 questions + 1 drill · ~80 min
Parse Raw Data Into Structured DataMedium
Practice
Recently asked

Parse pipe-delimited employee records into validated structured rows using PostgreSQL string and type-conversion functions.

data parsingdata cleaningdata validationGusto
Parse Incoming Data Into JSONMedium
Practice
Recently asked

Convert delimited incoming records into typed JSON while filtering to valid records from open batches.

data parsingnull handlingdata validationGusto
Paid Search Retention SQLMedium
Practice
Practice drill

Calculate next-month retention for Gusto users acquired through paid search using cohort dates and activity records.

Window FunctionsDate FunctionsRetentionGusto
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4
Behavioral & Leadership5 questions · ~70 min
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5
More topics3 questions · ~42 min
Microservices vs MonolithsMedium
Recently asked

Evaluates architectural judgment and ability to justify tradeoffs.

experiencemicroservicesGusto
Working in a TeamEasy
Recently asked

Tests collaboration experience and your ability to contribute to shared research goals.

Trade-offsRisk AssessmentGusto
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The finish line: interview-readyComplete all 50 questions plus 1 hands-on drill to finish this plan.