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Deliveroo Software Engineer Interview Questions

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

50questions
~7htotal time
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1
CodingStart here. 17 questions · ~142 min
Fixed Size Ring BufferEasy
Practice

Implement a fixed-capacity circular queue for Deliveroo order events with constant-time enqueue, dequeue, peek, and size operations.

Data StructuresDeliveroo
Rate Limiting for APIsMedium
Recently asked

Tests ability to design defensive API controls and implement rate limiting effectively.

coding challengeapirate limitingDeliveroo
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2
Execution7 questions · ~58 min
Microservices and REST MCQsHard
Recently asked

Tests breadth of knowledge across REST, testing, and microservices concepts.

apiTestingDeliveroo
Unit and Integration TestingMedium
Recently asked

Tests testing strategy and ability to maintain quality in production systems.

best practicesTestingproductionDeliveroo
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3
System Design17 questions · ~142 min
Real-Time Order Updates SystemHard
Recently asked

Tests large-scale system design for real-time event processing and consistency.

system designscalabilityDeliveroo
Traffic Spike During Peak HoursHard
Recently asked

Tests scalability and resilience planning for sudden demand surges in production.

system designscalabilityDeliveroo
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4
SQL & Data Manipulation4 questions + 3 drills · ~63 min
SQL Join TypesMedium

Assesses SQL fundamentals and practical query reasoning.

JoinssqlDeliveroo
Average Order Value by RegionMedium
Practice
Practice drill

Join Whatnot users and orders to calculate average order value per user region using GROUP BY.

JoinsGroup ByAggregationsWhatnotDeliveroo
Rolling 7-Day Average QueryMedium
Practice
Recently asked
Practice drill

Calculate Deliveroo's daily order volume and rolling 7-day average using a date spine, aggregation, and window functions.

sql queryDeliverooDoorDash
SQL Average Selling PriceMedium
Practice
Practice drill

Calculate weighted average selling prices by product using a date-range join, aggregation, and NULL handling.

leetcodesqlCostarCostar Group
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5
Behavioral & Leadership4 questions · ~33 min
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6
More topics1 question · ~8 min
Routing Protocols and OSIMedium

Assesses networking fundamentals and ability to reason about routing and automation.

NetworkingAutomationDeliveroo
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.