Pinterest ML engineer interviews focus on model training pipelines, feature engineering, deployment infrastructure, and implementing ML algorithms from scratch.
All Roles
Software Engineer
Backend Engineer
Frontend Engineer
Full Stack Engineer
Mobile Engineer
Data Engineer
Data Scientist
ML Engineer
DevOps Engineer
DevOps Engineer
Product Manager
SRE
Security Engineer
Engineering Manager
Data Analyst
UX/UI Designer
QA Engineer
coding
Medium
Verified Question
#1
1. Article Ranking System
Category: String coding problemDesign an article ranking system for a news platform. The system stores articles identified by a unique integer ID, a relevance score, and a category...Input: List
Output: Array
coding
Medium
Verified Question
#2
2. Audit Log Analyzer
Category: Graph coding problemDesign an audit log analyzer for a financial transactions platform. The system is initialized with a list of log entries, where each entry is a...Input: Graph (nodes and edges)
Output: Computed result
coding
Hard
Verified Question
#3
3. Compressed Grid Operations
Category: Matrix coding problemDesign a
CompressedGrid class that stores a sparse integer matrix efficiently by keeping only non-zero values in memory. The class must support...Input: Matrix (2D array)Output: Computed result
coding
Medium
Verified Question
#4
4. Coworking Desk Availability
Category: Interval-based coding problemA co-working space manages desk reservations throughout the day. Given the space's operating hours, its total desk capacity, and a list of bookings,...Input: List
Output: Array
coding
Medium
Verified Question
#5
5. Degrees of Separation
Category: Algorithm coding problemIn a social network, there are
n users numbered from 0 to n - 1. You are given a list of bidirectional friend connections connections, where...Input: ListOutput: Integer
coding
Medium
Verified Question
#6
6. Directory Permission Manager
Category: Tree coding problemDesign a permission management system for a hierarchical file system. Implement the
DirectoryPermissionManager class. The directory hierarchy is...Input: ListOutput: Computed result
coding
Medium
Verified Question
#7
7. EV Charging Optimizer
Category: Binary search coding problemAn electric vehicle travels along a highway between a start and a destination. Charging stations are located at positions given in a non-decreasing...Input: Array
Output: Computed result
coding
Medium
Verified Question
#8
8. Game Level Tracker
Category: String coding problemDesign a leaderboard system for a mobile game where players progress through levels sequentially. Implement the
GameLevelTracker class. The game...Input: StringOutput: Integer
coding
Medium
Verified Question
#9
9. Maximum Meeting Schedule
Category: Algorithm coding problemYou manage a single conference room and have a list of meeting requests. Each meeting is defined by a
[start, end] pair. Two meetings overlap if...Input: ListOutput: Integer
coding
Medium
Verified Question
#10
10. Playlist Song Connection
Category: Graph coding problemA music platform organizes songs into playlists. Each playlist contains a set of distinct song IDs, and a song may appear in multiple playlists. Two...Input: Graph (nodes and edges)
Output: Integer
coding
Medium
Verified Question
#11
11. Request Anomaly Linker
Category: Trie-based coding problemYou are building an anomaly detection system for a distributed platform. The system receives request logs and anomaly reports, and must link each...Input: Array of strings
Output: Array
coding
Hard
Verified Question
#12
12. Run Length Decode All
Category: Graph coding problemA signal log is compressed using run-length encoding. In this scheme, a source string of digits is scanned left to right, and each run of identical...Input: Graph (nodes and edges)
Output: Array
coding
Medium
Verified Question
#13
13. Timed Job Queue
Category: Priority queue coding problemDesign a background job scheduling system called
TimedJobQueue. The system accepts jobs with an associated delay and executes them in delay order....Input: ListOutput: Array
coding
Medium
Verified Question
#14
14. Unordered Nested Equality
Category: String coding problemTwo configurations are considered equal if they contain the same elements regardless of order at every level of nesting. Elements can be atomic...Input: List
Output: Computed result
coding
Medium
Verified Question
#15
15. Warehouse Drone Dispatch
Category: String coding problemA vertical warehouse uses autonomous drones to fulfill package requests. Each drone is at a specific floor and has one of three states:...Input: List
Output: Integer
coding
Medium
Verified Question
#16
16. Warehouse Item Counter
Category: Grid/matrix coding problemYou are building a warehouse inventory scanner that analyzes a 2D grid representing a warehouse floor. Each cell is either
'X' (part of an item) or...Input: 2D gridOutput: Computed result
No AI generated questions yet for Pinterest.
Related Pinterest ML Engineer interview prep
Start practicing Pinterest questions
Sign up for free to access walkthroughs, AI-generated questions, and more.
Get Started Free