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Mercari Backend Engineer Interview Questions

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

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Optimize Code ComplexityMedium

Evaluates your skills in profiling, analyzing, and improving algorithmic performance.

space complexitytime complexity
Mercari
Choosing Data Structures Trade-offs
Medium

Tests your ability to reason about performance, memory, and maintainability trade-offs.

Hash TablesLinked ListsTrees
Mercari
Algorithm Practice Under Time
Medium

Tests your ability to solve algorithmic problems efficiently under time constraints.

coding challenge
Mercari
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Choosing Databases and MiddlewareMedium

Assesses your ability to make pragmatic technology choices aligned with requirements and constraints.

Mercari
Handling Microservices Bottlenecks
Hard

Tests your approach to diagnosing and resolving performance issues in distributed systems.

scalabilitymicroservices
Mercari
Marketplace Inventory Architecture
Hard

Evaluates your system design skills for building scalable marketplace components at Mercari.

inventory management
Mercari
Monitoring and High Availability
Medium

Evaluates your reliability engineering practices for operating services at scale.

monitoringalertinghigh availability
Mercari

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Adapting to Mid-Project Requirement Changes
Medium

Tests adaptability under changing requirements, including reprioritization, ownership, and execution in ambiguity.

OwnershipDealing With AmbiguityPrioritization
Mercari
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