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Microsoft Interview Prep

Microsoft’s interview loop for SDE-2+ includes 1 system design round alongside 2 coding rounds and a hiring manager round. System design is more collaborative than adversarial — the interviewer often acts as a partner helping you refine the design. Microsoft values practical engineering: monitoring, deployment strategies, and how you’d actually ship this to production.

HLD Problems Asked at Microsoft

# Problem Difficulty Link
1 Chat System (Teams / WhatsApp) Intermediate Read →
2 URL Shortener Beginner Read →
3 Notification System Intermediate Read →
4 Rate Limiter Beginner Read →
5 Google Docs (Collaborative Editing) Advanced Read →
6 Twitter Feed Intermediate Read →

DSA Problems Frequently Asked at Microsoft

# Problem Pattern Link
1 LRU Cache HashMap + Doubly Linked List LeetCode →
2 Course Schedule Topological Sort LeetCode →
3 Merge Intervals Sorting + Greedy LeetCode →
4 Binary Tree Level Order Traversal BFS LeetCode →
5 Add Two Numbers (Linked List) Linked List LeetCode →
6 Valid Parentheses Stack LeetCode →
7 Clone Graph BFS/DFS + HashMap LeetCode →
8 Spiral Matrix Simulation LeetCode →
9 Design Tic-Tac-Toe Design LeetCode →
10 Word Search Backtracking LeetCode →

Tips for Microsoft Interviews

  1. The HM round is critical. Unlike other companies, Microsoft’s Hiring Manager round can single-handedly reject you. Prepare 4-5 strong STAR stories about ownership, conflict resolution, and shipping under pressure.
  2. Design for Teams/Azure scale. Microsoft loves questions related to collaboration tools, cloud services, and enterprise-grade reliability. Think about multi-tenant isolation and compliance.
  3. Show deployment thinking. Mention CI/CD, feature flags, canary deployments, and rollback strategies. Microsoft values engineers who think about how to ship safely.
  4. Medium-level DSA is enough. Unlike Google, Microsoft’s coding rounds are typically LeetCode medium. Focus on clean code, clear communication, and handling edge cases over exotic algorithms.

Other Company Prep

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