Microsoft Coding Interview Guide
Microsoft runs a fairly traditional software engineering loop. A typical path is a recruiter screen, one or two technical phone or video screens, and an onsite loop of four to five interviews. Coding rounds test data structures and algorithms, and most loops also include design discussion and behavioral questions. Microsoft interviewers are generally known for a collaborative, conversational style: they want to see how you think and how you respond to hints, not just whether you land the optimal answer immediately.
Because Microsoft is a large company with many teams, difficulty and emphasis vary by org and level. The common thread is clear communication, correct code, and solid reasoning about edge cases.
Topics Microsoft Commonly Emphasizes#
The coding rounds lean on core fundamentals:
- Arrays, strings, and two-pointer techniques
- Hash maps and frequency counting
- Linked lists and pointer manipulation
- Trees and binary search trees (traversals, validation)
- Recursion and backtracking
- Graphs (BFS, DFS)
- Dynamic programming basics
- Sorting and binary search
Have the Big-O cheat sheet internalized so you can discuss time and space cost naturally.
Representative Problem Types to Practice#
Practice these categories, not memorized questions:
- In-place array and string manipulation
- Linked-list reversal, merging, and cycle detection
- Tree traversal and BST validation problems
- Backtracking (subsets, permutations, combinations)
- Graph traversal and connected-component problems
- Classic one-dimensional dynamic programming
- Binary search on sorted or rotated arrays
- Design a data structure with specific operations (for example, an LRU-style cache)
How to Prepare#
Microsoft rewards fundamentals done well, so build them in order. Work through the 60-day curriculum first, then drill the core interview patterns until recognition is automatic. Practice talking through your approach before coding, because Microsoft interviewers actively engage with your reasoning.
When you want a full loop simulation, follow the FAANG interview prep plan, and use the interview prep hub to compare formats across companies.