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System Design at Microsoft
System Design at Microsoft
Microsoft system design interviews cover collaborative productivity tools, cloud infrastructure, messaging systems, and calendar/scheduling services. They test your ability to design enterprise-grade, highly available systems.
10 guides available•Interview focus: Collaborative editing, messaging, calendar systems, distributed infrastructure, and cloud services.
Microsoft System Design Interview Guides
May 5, 2026•15 min•
senior
Complete Android System Design Interview Framework
Master Android system design interviews with this repeatable framework. Learn to clarify requirements, design layered architectures, and handle offline-first da...
Dec 22, 2025•22 min•
hard
How to Design a Distributed Task Scheduler - Complete System Design Guide
Master distributed task scheduler system design for your next big tech interview. Covers task submission guarantees, push vs pull worker models, leader election...
Dec 20, 2025•22 min•
hard
How to Design a Real-Time Collaborative Editor like Google Docs - System Design Guide
Master collaborative editor system design for your next big tech interview. Covers Operational Transformation vs CRDTs with the math explained, WebSocket archit...
Dec 12, 2025•20 min•
medium
Android System Design: Design a Notes App
A complete Android system design guide for designing a notes app like Google Keep or Apple Notes. Covers offline-first architecture with Room, sync conflict res...
Dec 8, 2025•18 min•
medium
How to Design a Pastebin Service - Complete System Design Guide
Master Pastebin system design for your next big tech interview. Covers unique key generation approaches and their trade-offs, content storage in object storage ...
Nov 28, 2025•22 min•
hard
How to Design a Real-Time Messaging System - Complete System Design Guide
Master real-time messaging system design for your next big tech interview. Covers WebSocket connection management, cross-server message routing with Redis Pub/S...
Nov 10, 2025•18 min•
medium
How to Design Google Calendar - Complete System Design Guide
Master Google Calendar system design for your next big tech interview. Learn database schema design, the right way to handle timezones, how recurring events act...
Oct 20, 2025•22 min•
hard
How to Design Instagram / a Social Feed - Complete System Design Guide
Master Instagram and social feed system design for your next big tech interview. Learn the hybrid fan-out approach, how Instagram's real tech stack works, feed ...
Oct 10, 2025•20 min•
hard
How to Design a Chat System (Real-Time Messaging) - Complete System Design Guide
Master chat system design for your next big tech interview. Learn WebSockets, message delivery guarantees, Cassandra schema design, fan-out for group chats, pre...
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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