Microsoft full stack engineer interviews cover both frontend and backend topics including API design, database modelling, React or Vue components, and end-to-end system design.
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coding
Medium
Verified Question
#1
1. Design Rate Limiter
Category: Sliding window coding problem# Design Rate Limiter Design a rate limiter system that controls the number of requests allowed within a specified time window. The rate limiter is...Input: String
Output: Computed result
coding
Medium
Verified Question
#2
2. Object Oriented Design - Idempotent Receipt Sending
Category: Trie-based coding problemInput: String
Output: Computed result
coding
Medium
Verified Question
#3
3. Object Oriented Design - Notification Service
Category: Trie-based coding problem# Problem Statement Design a notification service that supports sending notifications through multiple channels (SMS, Email) and is architected to...Input: Number(s)
Output: Computed result
coding
Medium
Verified Question
#4
4. Shortest Substring with N Unique Characters
Category: String coding problem# Shortest Substring with N Unique Characters *This is a variation of the leetcode problem* Given a string
s and an integer n, find the length of...Input: StringOutput: Computed result
coding
Hard
Verified Question
#5
5. Rate Limiter
Category: Sliding window coding problemDesign a rate limiter that tracks API requests per client and enforces limits using a sliding time window. Your system must support: - hit(key,...Input: Given input
Output:** Computed result
coding
Hard
Verified Question
#6
6. Non-Adjacent Team Selection
Category: Tree coding problem# Question You are given
n people labeled from 0 to n - 1. Some pairs of people know each other directly. These relationships are given as a...Input: ListOutput: Computed result
coding
Medium
Verified Question
#7
7. Bounded Repeat Substring
Category: String coding problemA sensor data stream is represented as a string of characters. A contiguous segment of the stream is considered valid if it contains no three...Input: String
Output: Computed result
coding
Medium
Verified Question
#8
8. OA [CodeSignal] Prime Jumps
Category: Algorithm coding problem# OA [CodeSignal] Prime Jumps A game is played with the following rules: - A player starts at cell 0 with a score of 0. - There is a row of
n cells...Input: Number(s)Output: Computed result
coding
Hard
Verified Question
#9
9. Combine N-ary Trees
Category: Tree coding problemYou are given the roots of two N-ary organization charts, each representing a hierarchical department structure. Every node has an integer...Input: List
Output: Computed result
coding
Medium
Verified Question
#10
10. Digit Replacement Maximizer
Category: String coding problemA numeric optimization system performs exactly
k substitution operations on a number string s. In each operation, choose any digit in s that is...Input: StringOutput: Computed result
coding
Medium
Verified Question
#11
11. Best Window For Target Count
Category: Trie-based coding problemA log analysis tool searches for the most frequent occurrence of a specific error code within a fixed-size window of log entries. Given an integer...Input: Array
Output: Integer
coding
Medium
Verified Question
#12
12. Evens Before Odds
Category: Array coding problemYou are given an integer array
nums. Rearrange nums so that all even numbers appear before all odd numbers. The relative order of even or odd...Input: ArrayOutput: Integer
system design
Hard
Verified Question
#13
13. Top 5 System Design Questions Jan 2026
Category: Interval-based system design problem# Top 5 Recently Asked System Design Questions - Microsoft These are the commonly asked system design questions from Microsoft interviews and some...Input: List
Output: Computed result
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