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Updated weekly · Last refresh Oct 17

Shopify Backend Engineer Interview Questions

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

30questions
~4htotal time
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1
System DesignStart here. 15 questions · ~120 min
Design a URL Shortening ServiceHard

Design a URL shortening service that routes, ranks, and monitors links at scale.

Feature StoreModel ServingShopify
Ensuring Consistency Across ServicesHard

Design a reliable strategy for maintaining data consistency across multiple ML and backend services.

backend integrationsystem designdistributed systemsShopify
Partitioning for Multi-TenancyMedium

Evaluates database design decisions for multi-tenant scale and isolation.

Trade-offsShopify
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2
Execution3 questions · ~24 min
Prioritizing User ValueMedium

Tests prioritization and product thinking for backend work that impacts user value.

Feature PrioritizationUser NeedsShopify
Rate Limiting for High TrafficHard

Tests system design skills for protecting APIs under heavy load while keeping latency and fairness acceptable.

api designscalabilityrate limitingShopify
Testing Before DeploymentMedium

Evaluates your testing strategy to reduce risk when shipping backend changes.

TestingdeploymentShopify

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3
Behavioral & Leadership10 questions · ~80 min
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4
More topics2 questions · ~16 min
Optimizing Database QueriesMedium

Evaluates your ability to improve backend data access performance through query and indexing strategies.

database optimizationperformancequery optimizationShopify
Setting Up RSpec in RailsMedium

Evaluates your ability to configure and use testing frameworks in a Rails codebase.

TestingShopify
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Rolling 7-Day Conversion SQLMedium
Practice
Practice drill

Calculate Shopify Email's rolling 7-day conversion rate using CTEs, date series generation, joins, and window functions.

Window FunctionsDate FunctionsAggregationsShopifyActiveWizardsSquarespace
SQL for Sales and LogsHard
Practice
Practice drill

Aggregate completed Shopify sales and admin logins by merchant and month using CTEs, LEFT JOIN, and conditional logic.

case studysqlShopify
SQL Dataset ExplorationEasy
Practice
Practice drill

Explore a PostgreSQL dataset by identifying key patterns, missing values, and basic aggregates.

postgresqldata handlingdatabase queryingShopify
The finish line: interview-readyComplete all 30 questions plus 3 hands-on drills to finish this plan.