Mercari Backend Engineer Interview Questions

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

17questions

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System DesignStart here. 6 questions · ~49 min

Evaluates system design choices for time-based selection at marketplace scale.

Monitoring and High AvailabilityMedium

Evaluates your reliability engineering practices for operating services at scale.

monitoringalertinghigh availability

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Go and Java Testing ApproachHard

Assesses your testing strategy and how you handle secure, non-leaky test execution.

apicloud scaling

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Coding6 questions · ~49 min

Tests your ability to design and implement a backend API in Go.

General Coding Skills CheckEasy

Tests foundational coding ability and problem-solving approach.

Mercari

GitHub-Based Development SkillsMedium

Evaluates evidence of real development practices from your GitHub activity.

Mercari

Optimize Code ComplexityMedium

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

space complexitytime complexity

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Behavioral & Leadership5 questions · ~41 min

Resolving Technical Conflict on ApproachMedium

Tests conflict resolution in technical disagreements, including communication, influence without authority, and ownership of the final outcome.

Conflict ResolutionStakeholder ManagementCommunication

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The finish line: interview-readyComplete all 17 questions to finish this plan.