Set of X Interview Questions
The questions to prepare for Set of X interviews, across all roles. Questions from real interview reports rank first. Updated daily.
Tests deep Java performance tuning and memory management in high-throughput production systems.
Tests ability to select efficient Python data structures for scale and performance constraints.
Tests mastery of concurrency primitives, correctness, and performance trade-offs in Java.
Tests adaptability under changing requirements, with emphasis on prioritization, ambiguity management, and ownership during a technical pivot.
Tests conflict resolution in technical disagreements, including communication, influence without authority, and ownership of the final outcome.
Tests reliability engineering practices like fault tolerance, observability, and resilience patterns.
Tests data modeling judgment for non-relational stores and complex domain data.
Tests system design skills for building robust ingestion pipelines with heterogeneous inputs.
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Build a scalable transaction-reporting query with event deduplication, monthly aggregation, and month-over-month metrics.
MastercardDesign a real-time Uber interaction schema and summarize each user's interaction activity, including users with no recorded events.
UberDesign normalized activity tables and query each user's recent activity count and latest event efficiently.
Amazon Web Services