Pubmatic Mobile Engineer Interview Questions

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

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CodingStart here. 11 questions · ~99 min

Implement an LRU cache using a hash map and doubly linked list to support O(1) get and put operations.

Rate Limiting for Partner ProtectionHard

Tests ability to build traffic protection mechanisms that preserve partner stability and user experience.

network requestsscalabilityrate limiting

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More topics8 questions · ~72 min

Tests experimentation design and measurement rigor for optimizing publisher yield at scale.

Handle Malformed DSP ResponsesHard

Tests resilience and decisioning strategies to protect fill rate in Pubmatic bid workflows.

user experiencefault tolerance

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10ms CTR Inference ServiceHard

Tests ability to design low-latency ML inference systems for mobile ad prediction.

latencyinference optimizationmodel comparison

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Real-Time Monetization Analytics PipelineHard

Tests system design for large-scale KPI computation and aggregation in mobile ad monetization.

KPIs

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SDK Mediation and Latency BottlenecksMedium

Tests understanding of mobile ad tech integration points and where latency is introduced.

latency

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Identity Resolution After ATTHard

Tests ability to design privacy-aware identity and capping logic for mobile ad delivery.

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