Peer Low-Level Design Submissions
Peer Low-Level Design Library
Browse low-level design solutions submitted by the community. Share your own code designs and learn from others.
Design an LLD of Splitwise
- Level: Staff
- Language: Pseudocode
- Submissions: 7
- Likes: 27
Design a Linux Find Command API
- Level: Senior
- Language: Pseudocode
- Submissions: 9
- Likes: 9
Design a Rate Limiter
- Level: Mid-level
- Language: Java
- Submissions: 2
- Likes: 6
Design a Pizza Billing System
- Level: Junior
- Language: Python
- Submissions: 13
- Likes: 6
Design a key-value store
- Level: Mid-level
- Language: Java
- Submissions: 1
- Likes: 6
Design a movie ticket booking system
- Level: Mid-level
- Language: Java
- Submissions: 1
- Likes: 3
Design a Postpaid Mobile Subscription Management System
- Level: Principal
- Language: Pseudocode
- Submissions: 3
- Likes: 2
Design a file system for write-once media
- Level: Mid-level
- Language: Java
- Submissions: 2
- Likes: 2
Design a thread safe LRU cache
- Level: Mid-level
- Language: C++
- Submissions: 5
- Likes: 2
Design a Parking Lot Management System
- Level: Mid-level
- Language: Java
- Submissions: 5
- Likes: 2
Design a Publisher-Subscriber Message queue
- Level: Senior
- Language: C++
- Submissions: 7
- Likes: 1
Design a Distributed Cache System
- Level: Senior
- Language: C++
- Submissions: 13
- Likes: 1
Design a Rate Limiter
- Level: Senior
- Language: Java
- Submissions: 6
- Likes: 1
Design Tic-Tac-Toe
- Level: Mid-level
- Language: Java
- Submissions: 5
- Likes: 1
Design a Multi-Channel Notification Platform
- Level: Mid-level
- Language: Java
- Submissions: 1
- Likes: 1
Design a Notification System
- Level: Mid-level
- Language: Pseudocode
- Submissions: 3
- Likes: 1
Design Uber
- Level: Mid-level
- Language: Java
- Submissions: 5
- Likes: 1
Design an Elevator Control System
- Level: Staff
- Language: C++
- Submissions: 1
- Likes: 1
Design a Meeting Room Booking System
- Level: Mid-level
- Language: C++
- Submissions: 3
- Likes: 0
Design a Pizza Billing System
- Level: Mid-level
- Language: C++
- Submissions: 5
- Likes: 0