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Design a Top-K trending service

Last updated: May 28, 2026

Quick Overview

This question evaluates skills in distributed system design, real-time stream processing, scalable aggregation, windowing semantics, and trade-offs around latency, accuracy, and fault tolerance when computing top-K frequencies.

  • medium
  • eBay
  • System Design
  • Software Engineer

Design a Top-K trending service

Company: eBay

Role: Software Engineer

Category: System Design

Difficulty: medium

Interview Round: Technical Screen

Quick Answer: This question evaluates skills in distributed system design, real-time stream processing, scalable aggregation, windowing semantics, and trade-offs around latency, accuracy, and fault tolerance when computing top-K frequencies.

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|Home/System Design/eBay

Design a Top-K trending service

eBay logo
eBay
Jan 15, 2026, 12:00 AM
mediumSoftware EngineerTechnical ScreenSystem Design
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