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System Design at Datadog

Datadog interviews focus on observability infrastructure, distributed metrics collection, alerting systems, time-series databases, and log aggregation. They test your ability to design monitoring systems that process millions of data points per second.

3 guides available•Interview focus: Metrics monitoring, alerting systems, distributed logging, and time-series data infrastructure.

Datadog System Design Interview Guides

Dec 25, 2025•22 min•

hard

How to Architect a Metrics Monitoring and Alerting System - Complete System Design Guide

Master metrics monitoring and alerting system design for your next big tech interview. Covers time-series data modelling, pull vs push ingestion, TSDB internals...

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Nov 15, 2025•20 min•

hard

How to Design a Distributed Metrics, Logging and Aggregation System

Master distributed metrics and logging system design for your next big tech interview. Covers push vs pull collection, Kafka ingestion pipeline, time-series dat...

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Oct 1, 2025•18 min•

medium

How to Design a Rate Limiter - Complete System Design Guide

Master rate limiter system design for your next big tech interview. Learn every algorithm — token bucket, sliding window, leaky bucket — plus Redis-backed distr...

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