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 β†’
2 URL Shortener Beginner Read β†’
3 Notification System Intermediate Read β†’
4 Rate Limiter Beginner Read β†’
5 Google Docs (Collaborative Editing) Advanced Read β†’
6 Twitter Feed Intermediate Read β†’

DSA Problems Frequently Asked at Microsoft

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

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

Free system design + DSA prep. If it helped you crack an interview, consider supporting.