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Design trending queries ranking system

Last updated: Mar 29, 2026

Quick Overview

This question evaluates the ability to design scalable, low-latency ML-driven systems for detecting and ranking trending queries, covering competencies in real-time event ingestion, streaming aggregation, ranking and scoring methods, personalization, and abuse mitigation.

  • medium
  • Perplexity
  • ML System Design
  • Software Engineer

Design trending queries ranking system

Company: Perplexity

Role: Software Engineer

Category: ML System Design

Difficulty: medium

Interview Round: Onsite

Quick Answer: This question evaluates the ability to design scalable, low-latency ML-driven systems for detecting and ranking trending queries, covering competencies in real-time event ingestion, streaming aggregation, ranking and scoring methods, personalization, and abuse mitigation.

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  • Design personalized discovery recommendations - Perplexity (medium)
|Home/ML System Design/Perplexity

Design trending queries ranking system

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Perplexity
Sep 4, 2025, 12:00 AM
mediumSoftware EngineerOnsiteML System Design
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