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Low Level Design

Practice real-world Low-Level Design interviews focused on object-oriented design, scalability, and clean architecture. Strengthen your system modeling and pattern application skills through interactive mock sessions.

Real life interview scenarios for

Low Level Design

Practice real-world Low-Level Design interviews focused on object-oriented design, scalability, and clean architecture. Strengthen your system modeling and pattern application skills through interactive mock sessions.

Real life interview scenarios for

Explore Interviews

Low Level Design

Airline Management System

Gain insight into designing an airline management system covering critical aspects like design approaches, essential design patterns, class structure, and class relationships.

45 min

Low Level Design

Airline Management System

45 min

Low Level Design

Amazon Locker Service

Explore a structured interview to design the Amazon Locker Service, delving into design approaches, patterns, classes, and their relationships, ensuring a comprehensive understanding.

45 min

Low Level Design

Amazon Locker Service

45 min

Low Level Design

Amazon Online Shopping System

Expect a structured, insightful session focused on design approaches, patterns, and class relationships necessary to effectively build an Amazon Online Shopping System.

45 min

Low Level Design

Amazon Online Shopping System

45 min

Low Level Design

ATM

Prepare to design an ATM system, focusing on object-oriented principles, design approaches, patterns, and class relationships in a structured, phased manner.

45 min

Low Level Design

ATM

45 min

Low Level Design

Blackjack Game

Gain insight into designing a Blackjack game through structured questions on design approaches, patterns, key classes, and their relationships, tailored to your experience level.

45 min

Low Level Design

Blackjack Game

45 min

Low Level Design

Car Rental System

Understand and design an efficient car rental system focusing on design approaches, patterns, class structures, and relationships for optimal functionality.

45 min

Low Level Design

Car Rental System

45 min

Low Level Design

Chess Game

Prepare to design a multiplayer Chess game system by addressing design approaches, utilizing design patterns, listing classes, and defining relationships for an online platform.

45 min

Low Level Design

Chess Game

45 min

Low Level Design

ESPNCricinfo

Assess your understanding of designing a complex cricket stats and live commentary system, i.e., ESPNCricinfo, while showcasing your object-oriented design skills. Engage confidently!

45 min

Low Level Design

ESPNCricinfo

45 min

Low Level Design

Designing An In-Memory File System

Prepare to design an in-memory file system, focusing on hierarchical structures, file operations, metadata handling, and reliable object-oriented design.

45 min

Low Level Design

Designing An In-Memory File System

45 min

Low Level Design

Designing the Tic-Tac-Toe

Build an object-oriented design for the classic Tic-Tac-Toe game, focusing on game flow, rule enforcement, outcome detection, and extensibility to larger boards or variations.

45 min

Low Level Design

Designing the Tic-Tac-Toe

45 min

Low Level Design

Elevator System

Analyze your understanding of object-oriented analysis and design by tackling an elevator system design problem with phases on approach, patterns, classes, and relationships.

45 min

Low Level Design

Elevator System

45 min

Low Level Design

Facebook

Evaluate your comprehension of Facebook by analyzing design approaches, selecting appropriate design patterns, and defining class structures and relationships effectively.

45 min

Low Level Design

Facebook

45 min

Low Level Design

Food Delivery Platform

Design a food delivery platform where customers browse restaurants, place orders, make payments, and track deliveries, focusing on object-oriented modeling, workflows, and scalability.

45 min

Low Level Design

Food Delivery Platform

45 min

Low Level Design

GitHub-like Version Control System

Design a collaborative code hosting platform similar to GitHub, that manages repositories, branches, commits, and pull requests while ensuring secure access control and conflict-free collaboration.

45 min

Low Level Design

GitHub-like Version Control System

45 min

Low Level Design

Hotel Management System

Prepare for an engaging assessment of designing a Hotel Management System including design approaches, patterns, class structures, and their relationships through targeted, experience-level questions.

45 min

Low Level Design

Hotel Management System

45 min

Low Level Design

Jigsaw Puzzle

Evaluate your understanding of object-oriented design by schematically creating a jigsaw puzzle system. Improve skills in design approaches, patterns, classes, and their relationships.

45 min

Low Level Design

Jigsaw Puzzle

45 min

Low Level Design

Library Management System

Prepare to test your skills in designing a Library Management System, focusing on design approaches, pattern choices, class structure, and inter-class relationships.

45 min

Low Level Design

Library Management System

45 min

Low Level Design

LinkedIn

Prepare to design a LinkedIn-style professional networking platform, focusing on object-oriented principles, design approaches, patterns, and class relationships in a structured, phased manner.

45 min

Low Level Design

LinkedIn

45 min

Low Level Design

Meeting Scheduler

Expect a structured, insightful session focused on designing a meeting scheduler, covering various aspects like design approaches, patterns, class diagrams, and relationships.

45 min

Low Level Design

Meeting Scheduler

45 min

Low Level Design

Movie Ticket Booking System

Assess your understanding of the core concepts of designing a movie ticket booking system, covering design approaches, patterns, key classes, and their relationships.

45 min

Low Level Design

Movie Ticket Booking System

45 min

Low Level Design

Online Gaming Platform

Design a large-scale digital distribution and multiplayer gaming system, like Steam or Epic Games, that manages game libraries, purchases, DRM, matchmaking, and social features.

45 min

Low Level Design

Online Gaming Platform

45 min

Low Level Design

Parking Lot

Gain insights into object-oriented design through a structured evaluation focusing on designing a parking lot system, covering design approach, patterns, classes, and their relationships.

45 min

Low Level Design

Parking Lot

45 min

Low Level Design

Restaurant Management System

Expect a thorough evaluation of your object-oriented design skills as you conceptualize a Restaurant Management System, covering design approaches, patterns, and class relationships.

45 min

Low Level Design

Restaurant Management System

45 min

Low Level Design

Stack Overflow

Engage in designing Stack Overflow through phases covering design approach, design patterns, class structures, and their relationships. Understand core system requirements and best practices.

45 min

Low Level Design

Stack Overflow

45 min

Low Level Design

Stock Brokerage System

Evaluate your understanding of object-oriented design principles while creating a stock brokerage system, covering design approaches, design patterns, class identification, and class relationships.

45 min

Low Level Design

Stock Brokerage System

45 min

Low Level Design

The Hospital Management System

Design and implement a hospital management system covering patients, doctors, appointments, prescriptions, and billing with secure scheduling and record management.

45 min

Low Level Design

The Hospital Management System

45 min

Low Level Design

The Snake and Ladder Game

Design a multiplayer Snake and Ladder game system that models the board, players, dice mechanics, and turn-based progression while handling snakes, ladders, and win conditions.

45 min

Low Level Design

The Snake and Ladder Game

45 min

Low Level Design

Vending Machine

Experience a comprehensive evaluation of your object-oriented design skills by designing a resilient vending machine system, emphasizing approach, patterns, and class relationships.

45 min

Low Level Design

Vending Machine

45 min

Built to Simulate the MAANG Experience

Built to Simulate the MAANG Experience

Prep for Every Loop

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Practice explaining complex technical concepts verbally to build confidence and refine your communication skills.

Detailed Analysis

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Unlock insights that highlight your weaknesses and gives you sample responses.

Instant, Actionable Feedback

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Receive immediate, targeted guidance on solution correctness, complexity, and approach.

Interactive Environment

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Hone your coding logic in an editor and bring your system designs to life with an integrated diagramming workspace.

Tailored to Your Preferences

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Get relevant practice scenarios for your role and experience, whether you're a junior or an engineering manager.

Frequently Asked Questions

What is an AI Mock Interview and how does it help me?

An AI Mock Interview is a realistic simulation of a technical interview, powered by artificial intelligence. It's designed to help you:
  • Build Confidence: Practice in a safe, repeatable environment that mimics the pressure of a real interview.
  • Sharpen Communication: Articulate your thought process and solutions clearly.
  • Get Instant Feedback: Receive immediate, data-driven feedback on your problem-solving, coding, and system design skills so you know exactly where to improve.

Who is mockinterviews.dev for?

Our platform is designed for a wide range of technology professionals. Whether you're a junior software engineer, a senior or principal engineer, an engineering manager, a director, or a product manager, our tailored mock interviews can help you sharpen the skills needed to succeed in your next interview.

Can AI Mock Interviews replace practicing with a real person?

AI mock interviews are a powerful supplement, not a replacement. Think of them as your on-demand interview gym. While practicing with peers and mentors is valuable, our AI interviews allow you to practice anytime, anywhere, as often as you need, removing the hassle of scheduling and the fear of judgment. Consistent practice with our AI is the most efficient way to build muscle memory and confidence for the real thing.

Is my interview data kept private?

Absolutely. Your privacy is a top priority. Your code, diagrams, and recordings stay private — they are never used to train public models.

What programming languages do you support?

You can practice coding interviews in most major languages, including Python, Java, C++, JavaScript, Go, and C#.

How should I structure my prep with mock interviews?

We recommend a two-stage approach:
  1. Learn the Fundamentals: First, get comfortable with core data structures, algorithms, and system design concepts using resources like Educative's Interview Prep.
  2. Apply Your Knowledge: Use mock interviews to practice applying that knowledge in a timed, high-pressure setting. This bridges the gap between knowing a concept and being able to deploy it effectively under pressure.

When should I start doing mock interviews?

Start after you have a foundational grasp of the topics you'll be tested on—typically 2-3 weeks into your study plan. The goal isn't to score perfectly at first, but to get comfortable with the format and learn how to perform under pressure.

How often should I practice as my real interview gets closer?

In the weeks leading up to your interview, aim for one to two mock interviews per week. This frequency gives you enough time to absorb the AI's feedback, work on your weak spots, and see measurable improvement. Consistency is more valuable than cramming.

How does the AI evaluate my performance?

Our AI analyzes multiple aspects of your performance, including the clarity of your communication, the optimality of your solution, your problem-solving approach, and your coding style. It provides a detailed report highlighting your strengths and areas for improvement.

What types of interviews can I practice?

Mockinterviews.dev offers a range of interview simulations, including algorithmic coding challenges, system design deep dives, and behavioral questions, covering the full spectrum of a typical software engineering hiring process.