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Product Management
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Ace product interviews from strategy cases to technical skills.
Forward Deployed
Beta
Prep for FDE loops at Anthropic, OpenAI, Palantir, and more.
Engineering Management
Review key leadership and people management skills.
Software Engineering
Learn essential strategies for coding problems and more.
System Design
Define architectures, interfaces, and databases in a time crunch.
Data Science
Execute statistical techniques and experimentation effectively.
Machine Learning
Review building, evaluating, and deploying AI/ML models.
Data Engineering
Design complex data models and ETL pipelines.
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Generative AI
Security Engineer
Data Analytics
Eng Behavioral
TPM
Solutions Architect
UX / Product Design
BizOps & Strategy
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Experiences
Questions
Top Questions
Product Management
Behavioral Questions
Coding Questions
System Design
SQL Questions
Machine Learning
Data Analytics
Data Engineering
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Practice
Coaching
Mock Interviews & Coaching
Practice with our team of senior tech coaches.
Resume Review
Get your resume reviewed by a senior tech recruiter.
Salary Negotiation
Increase your offer with our expert negotiators.
How Coaching Works
Learn how expert coaching can help you land the job.
Pricing
Job Referrals
Get job referrals to top tech companies.
Blog
Check out our blog on tech interviewing tips, strategies, and more.
Resources
Members-only articles, videos, and interviews.
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Give your students tech interview prep.
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Courses
Product Management
New
Ace product interviews from strategy cases to technical skills.
Forward Deployed
Beta
Prep for FDE loops at Anthropic, OpenAI, Palantir, and more.
Engineering Management
Review key leadership and people management skills.
Software Engineering
Learn essential strategies for coding problems and more.
System Design
Define architectures, interfaces, and databases in a time crunch.
Data Science
Execute statistical techniques and experimentation effectively.
Machine Learning
Review building, evaluating, and deploying AI/ML models.
Data Engineering
Design complex data models and ETL pipelines.
View all courses
Loops
Experiences
Questions
Product Management
Behavioral Questions
Coding Questions
System Design
SQL Questions
Machine Learning
Data Analytics
Data Engineering
Browse all questions
Practice
Coaching
Mock Interviews & Coaching
Practice with our team of senior tech coaches.
Resume Review
Get your resume reviewed by a senior tech recruiter.
Salary Negotiation
Increase your offer with our expert negotiators.
How Coaching Works
Learn how expert coaching can help you land the job.
Pricing
More
Job Referrals
Get job referrals to top tech companies.
Blog
Check out our blog on tech interviewing tips, strategies, and more.
Resources
Members-only articles, videos, and interviews.
Work with us
Help us grow the Aced community.
Perks
Access exclusive member benefits.
For universities
Give your students tech interview prep.
For businesses
Improve your placement rates, outcomes, and more.
For recruiters
Post a job on Aced's exclusive job board.
Affiliate program
Recommend us to others and earn commission.
Sign up
Log in
Forward Deployed Engineering Interviews
FDE Introduction
Overview
Welcome to the Forward-Deployed Engineer Interview Prep Course!
The FDE Interview Process
Fireside Chats
What Hiring Managers Look for When Building an FDE Team
Understand the FDE Role Before You Interview for It
Is the FDE Role Right for You?
How to Win the LangChain Deployed Engineer Interview
Decomposition Questions
Overview
What are Decomposition Questions?
How to Answer Decomposition Questions
Rubric for Decomposition Questions
Mock Interviews & Practice
Design Sync System Between Employee Record Systems
Design System to Improve NYC Traffic
Design Field Catalog
Coming soon
Practical Coding Interviews
Introduction
Building New Projects
Extending Codebases
Debugging Interviews
Bonus: AI-Assisted Coding Round at Meta
Web Crawler
Find Duplicate Files
Build a Rate Limiter
New
Movie Recommendation API
New
Key-Value Store with TTL
New
Parse CSV Transactions
New
Image Processing Pipeline
Debug API Errors in Production
New
Debug Loyalty Points System
New
Behavioral Questions for Forward-Deployed Engineers
Fast Track (Start Here)
Introduction to Behavioral Questions
Avoiding Downleveling
Approaching the 3 Question Types
How to Answer Customer Interaction Questions
Answering Customer Interaction Questions Without Experience
Theory
Why Engineers Fail Interviews
The Question Beneath the Question
Measuring Culture Fit
Demonstrating Impact
Introducing Yourself: Do's and Don'ts
"Why Our Company?"
Prevent Instant Rejection
Tactics
Know the Rules So You Can Break Them
Types of Interviewers
Sharing the Optimal Level of Detail
Stop Sounding Like a Robot
Reversing a Downlevel Offer
Mock Interviews and Practice
Pushing Back on Clients, End-to-End Technical Wins, Cross-Functional Work
Why FDE?
Coming soon
Challenging Deployment
Coming soon
Customer Pushing Scope of Work
Coming soon
Customer Feedback to Core Product Improvement
Coming soon
Demonstrating Ownership (Part 1)
Demonstrating Ownership (Part 2: Analysis)
Be Seen as a Senior Engineer (Part 1: Mock Interview)
Be Seen as a Senior Engineer (Part 2: Analysis)
Do You Meet the Senior+ Bar? (Part 1)
Do You Meet the Senior+ Bar? (Part 2: Analysis)
Project Deep Dives for Forward-Deployed Engineers
What are FDE Project Deep Dives?
How to Choose Your Project
How to Prepare Your Project
Presentation Tips From Interviewers
Take-Home Assignments for Forward Deployed Engineers
Coming soon
System Design Interviews
Overview
Introduction to the System Design Interview
How to Answer System Design Interview Questions
The Must-Know System Design Patterns
Rubric for System Design Interviews
How to Use a Whiteboard in System Design Interviews
Read-Heavy Systems
Read-Heavy Systems
Design a URL Shortener
Design Typeahead for Search Box
Design Instagram
Design Twitter
Design the Reddit Homepage
Event-Driven Systems
Event-Driven and Pub/Sub Architectures
Design a Distributed Message Queue
Design Webhook Delivery
Design Uber Eats
Async Jobs and Workers
Async Jobs and Workers
Design a Web Crawler
Design a Job Scheduler
Design App that Downloads User Data
Distributed Data Storage & Partitioning
Partitioned and Distributed Storage
Design a Key Value Store
Design a Rate Limiter
Design a Distributed LRU Cache
Design Dropbox
Design Distributed Storage (S3)
Transactional Systems
Transactional Systems
Design Ticketmaster
Design a Hotel Booking System
Design a Parking Garage
Batch Processing and Data Pipelines
Batch Processing and Data Pipelines
Design a Metrics and Logging Service
Design an Application Performance Monitoring System
Design a Document Processing Pipeline
Design Zillow
Design a Weather App
Real-Time and Collaborative Systems
Real-Time and Collaborative Systems
Design Facebook Messenger
Design WhatsApp
Design Chess.com
Design Slack
Design Google Docs
Media Streaming and Content Delivery
Media Streaming and Content Delivery
Design YouTube
Design Netflix
Design TikTok
Design Twitch
Agentic AI Systems
Agentic AI Architectures
Design an AI-Powered Customer Support System
Design ChatGPT
File Uploader for AI Chat App
Design an LLM Query Batching System
Design Claude Code
Design a Real-Time Voice AI
Appendix: System Design Concepts
System Design Glossary
Top Engineering Blogs
Caching
CDNs
Web Protocol Questions
APIs
Load Balancing
CAP Theorem
SQL vs. NoSQL
Database Sharding
Replication
Consistent Hashing
Asynchronous Processing
Encryption
Authentication and Authorization
Cloud Architecture
Availability
Reliability
Software Engineering Coding Questions
Overview
Tips for Acing Technical Coding Interviews
Choosing the Right Language for Your Technical Interview
Practice: Move Zeros to End of Array
Practice: Remove Duplicates in String
Practice: Contiguous Subarray Sum
Bonus: AI-Assisted Coding Round at Meta
Fast Track
How to Prep for a Coding Interview Fast
Arrays, Two Pointers, Stacks, and Sliding Window
Binary Search, Heaps, and Intervals
Linked Lists, Trees, and Tries
Backtracking, Graphs, and DP
How to Answer Any Coding Interview Question
Time & Space Complexity
Understanding Big O Notation
Analyzing Time Complexity
Analyzing Space Complexity
Optimizing Your Algorithms
Coding Patterns
Introduction to Coding Patterns
Two Pointer
Prefix Sum
Tortoise & Hare
Sliding Window
Two Pass
Bit Manipulation
Cyclic Sort
Arrays
Arrays
Move Zeros to End of Array
Three Sum
Merge Intervals
Group Anagrams
Product of Array Except Self
Copy a Spiral Matrix
Maximum Subarray Sum
Container with Most Water
Task Scheduler
Trap Rain Water
Contiguous Subarray Sum
Hash Tables
Hash Tables
Maximum Profit
Difference of Arrays
Smallest Missing Integer
Two Sum
Boggle Board
Searching & Sorting
Sorting Algorithms
Binary Search
Number Finder
Find the Duplicates
K-Messed Array Sort
Rotations in Circularly Sorted Array
Koko Eating Bananas
Find the Peak Element
String Manipulation
Most Common Words
Valid Palindrome
Validate IP Address
Decrypt Message
Minimum Window Substring
Serialize and Deserialize Strings
Longest Substring Without Repeat
Remove Duplicates in String
Longest Palindromic Substring
Graphs
Graphs
Graph Search
Degrees of Friendship
Sentence Similarity
Number of Islands
Rotting Oranges
Course Schedule
Edit Distance
Redundant Connection
Trees
Trees
Balanced Tree
Diameter of a Tree
Validate Binary Search Tree
Construct Binary Tree
Implement Trie
Lowest Common Ancestor of a Binary Tree
Find Largest Smaller BST Key
BST Successor Search
Stacks & Queues
Stacks
Queues
Min Stack
Reverse a Sentence
Valid Parentheses
Daily Temperatures
Shortest Cell Path
Conversion Ratios
Linked Lists
Linked Lists
Reverse Linked List
Linked List Cycle
Merge Sort Doubly Linked List
Merge Linked Lists
LRU Cache
Heaps
Heaps
Find Largest Numbers
Buy and Sell Stock
Find Median from Data Stream
Meta Onsite Coding Round (Kth Largest Element in an Array and Minimum Remove to Make Valid Parentheses)
Recursion & Backtracking
Recursion
Fibonacci Numbers
Generate Parentheses
Subsets
Sales Path
Flatten a Dictionary
Build a Calculator
Permutations
Combination Sum
Implement Promise.all()
Sudoku Solver
Build a Basic Regex Parser
Dynamic Programming
Dynamic Programming
Climbing Stairs
Prime Numbers
Knapsack Problem
List the Difference Between Two Strings
Target Sum
Coin Change
Partition Equal Subset Sum
DNA Sequence
Unique Paths
Generative AI Interviews
Overview
Welcome to Exponent’s Generative AI Course
What is Generative AI?
Generative AI Glossary
Top AI Companies to Work For
What’s next in Generative AI?
Understanding Generative AI
How Gen AI Knowledge is Tested in Interviews
How Generative AI Works (Without the Jargon)
Generative AI and Hallucinations
Generative AI and Security
Generative AI Evaluation
Bias, Fairness, and Responsible AI
Coming soon
Using Generative AI
How Prompt Engineering is Tested in Interviews
Coming soon
How to Approach Prompt Engineering in Interviews
How to Vibe Code in an Interview
Walkthrough: AI Prototyping
Retrieval-Augmented Generation
Mock Interviews
Coming soon
Unlock full course
Forward Deployed Engineering Interviews
FDE Introduction
Overview
Welcome to the Forward-Deployed Engineer Interview Prep Course!
The FDE Interview Process
Fireside Chats
What Hiring Managers Look for When Building an FDE Team
Understand the FDE Role Before You Interview for It
Is the FDE Role Right for You?
How to Win the LangChain Deployed Engineer Interview
Decomposition Questions
Overview
What are Decomposition Questions?
How to Answer Decomposition Questions
Rubric for Decomposition Questions
Mock Interviews & Practice
Design Sync System Between Employee Record Systems
Design System to Improve NYC Traffic
Design Field Catalog
Coming soon
Practical Coding Interviews
Introduction
Building New Projects
Extending Codebases
Debugging Interviews
Bonus: AI-Assisted Coding Round at Meta
Web Crawler
Find Duplicate Files
Build a Rate Limiter
New
Movie Recommendation API
New
Key-Value Store with TTL
New
Parse CSV Transactions
New
Image Processing Pipeline
Debug API Errors in Production
New
Debug Loyalty Points System
New
Behavioral Questions for Forward-Deployed Engineers
Fast Track (Start Here)
Introduction to Behavioral Questions
Avoiding Downleveling
Approaching the 3 Question Types
How to Answer Customer Interaction Questions
Answering Customer Interaction Questions Without Experience
Theory
Why Engineers Fail Interviews
The Question Beneath the Question
Measuring Culture Fit
Demonstrating Impact
Introducing Yourself: Do's and Don'ts
"Why Our Company?"
Prevent Instant Rejection
Tactics
Know the Rules So You Can Break Them
Types of Interviewers
Sharing the Optimal Level of Detail
Stop Sounding Like a Robot
Reversing a Downlevel Offer
Mock Interviews and Practice
Pushing Back on Clients, End-to-End Technical Wins, Cross-Functional Work
Why FDE?
Coming soon
Challenging Deployment
Coming soon
Customer Pushing Scope of Work
Coming soon
Customer Feedback to Core Product Improvement
Coming soon
Demonstrating Ownership (Part 1)
Demonstrating Ownership (Part 2: Analysis)
Be Seen as a Senior Engineer (Part 1: Mock Interview)
Be Seen as a Senior Engineer (Part 2: Analysis)
Do You Meet the Senior+ Bar? (Part 1)
Do You Meet the Senior+ Bar? (Part 2: Analysis)
Project Deep Dives for Forward-Deployed Engineers
What are FDE Project Deep Dives?
How to Choose Your Project
How to Prepare Your Project
Presentation Tips From Interviewers
Take-Home Assignments for Forward Deployed Engineers
Coming soon
System Design Interviews
Overview
Introduction to the System Design Interview
How to Answer System Design Interview Questions
The Must-Know System Design Patterns
Rubric for System Design Interviews
How to Use a Whiteboard in System Design Interviews
Read-Heavy Systems
Read-Heavy Systems
Design a URL Shortener
Design Typeahead for Search Box
Design Instagram
Design Twitter
Design the Reddit Homepage
Event-Driven Systems
Event-Driven and Pub/Sub Architectures
Design a Distributed Message Queue
Design Webhook Delivery
Design Uber Eats
Async Jobs and Workers
Async Jobs and Workers
Design a Web Crawler
Design a Job Scheduler
Design App that Downloads User Data
Distributed Data Storage & Partitioning
Partitioned and Distributed Storage
Design a Key Value Store
Design a Rate Limiter
Design a Distributed LRU Cache
Design Dropbox
Design Distributed Storage (S3)
Transactional Systems
Transactional Systems
Design Ticketmaster
Design a Hotel Booking System
Design a Parking Garage
Batch Processing and Data Pipelines
Batch Processing and Data Pipelines
Design a Metrics and Logging Service
Design an Application Performance Monitoring System
Design a Document Processing Pipeline
Design Zillow
Design a Weather App
Real-Time and Collaborative Systems
Real-Time and Collaborative Systems
Design Facebook Messenger
Design WhatsApp
Design Chess.com
Design Slack
Design Google Docs
Media Streaming and Content Delivery
Media Streaming and Content Delivery
Design YouTube
Design Netflix
Design TikTok
Design Twitch
Agentic AI Systems
Agentic AI Architectures
Design an AI-Powered Customer Support System
Design ChatGPT
File Uploader for AI Chat App
Design an LLM Query Batching System
Design Claude Code
Design a Real-Time Voice AI
Appendix: System Design Concepts
System Design Glossary
Top Engineering Blogs
Caching
CDNs
Web Protocol Questions
APIs
Load Balancing
CAP Theorem
SQL vs. NoSQL
Database Sharding
Replication
Consistent Hashing
Asynchronous Processing
Encryption
Authentication and Authorization
Cloud Architecture
Availability
Reliability
Software Engineering Coding Questions
Overview
Tips for Acing Technical Coding Interviews
Choosing the Right Language for Your Technical Interview
Practice: Move Zeros to End of Array
Practice: Remove Duplicates in String
Practice: Contiguous Subarray Sum
Bonus: AI-Assisted Coding Round at Meta
Fast Track
How to Prep for a Coding Interview Fast
Arrays, Two Pointers, Stacks, and Sliding Window
Binary Search, Heaps, and Intervals
Linked Lists, Trees, and Tries
Backtracking, Graphs, and DP
How to Answer Any Coding Interview Question
Time & Space Complexity
Understanding Big O Notation
Analyzing Time Complexity
Analyzing Space Complexity
Optimizing Your Algorithms
Coding Patterns
Introduction to Coding Patterns
Two Pointer
Prefix Sum
Tortoise & Hare
Sliding Window
Two Pass
Bit Manipulation
Cyclic Sort
Arrays
Arrays
Move Zeros to End of Array
Three Sum
Merge Intervals
Group Anagrams
Product of Array Except Self
Copy a Spiral Matrix
Maximum Subarray Sum
Container with Most Water
Task Scheduler
Trap Rain Water
Contiguous Subarray Sum
Hash Tables
Hash Tables
Maximum Profit
Difference of Arrays
Smallest Missing Integer
Two Sum
Boggle Board
Searching & Sorting
Sorting Algorithms
Binary Search
Number Finder
Find the Duplicates
K-Messed Array Sort
Rotations in Circularly Sorted Array
Koko Eating Bananas
Find the Peak Element
String Manipulation
Most Common Words
Valid Palindrome
Validate IP Address
Decrypt Message
Minimum Window Substring
Serialize and Deserialize Strings
Longest Substring Without Repeat
Remove Duplicates in String
Longest Palindromic Substring
Graphs
Graphs
Graph Search
Degrees of Friendship
Sentence Similarity
Number of Islands
Rotting Oranges
Course Schedule
Edit Distance
Redundant Connection
Trees
Trees
Balanced Tree
Diameter of a Tree
Validate Binary Search Tree
Construct Binary Tree
Implement Trie
Lowest Common Ancestor of a Binary Tree
Find Largest Smaller BST Key
BST Successor Search
Stacks & Queues
Stacks
Queues
Min Stack
Reverse a Sentence
Valid Parentheses
Daily Temperatures
Shortest Cell Path
Conversion Ratios
Linked Lists
Linked Lists
Reverse Linked List
Linked List Cycle
Merge Sort Doubly Linked List
Merge Linked Lists
LRU Cache
Heaps
Heaps
Find Largest Numbers
Buy and Sell Stock
Find Median from Data Stream
Meta Onsite Coding Round (Kth Largest Element in an Array and Minimum Remove to Make Valid Parentheses)
Recursion & Backtracking
Recursion
Fibonacci Numbers
Generate Parentheses
Subsets
Sales Path
Flatten a Dictionary
Build a Calculator
Permutations
Combination Sum
Implement Promise.all()
Sudoku Solver
Build a Basic Regex Parser
Dynamic Programming
Dynamic Programming
Climbing Stairs
Prime Numbers
Knapsack Problem
List the Difference Between Two Strings
Target Sum
Coin Change
Partition Equal Subset Sum
DNA Sequence
Unique Paths
Generative AI Interviews
Overview
Welcome to Exponent’s Generative AI Course
What is Generative AI?
Generative AI Glossary
Top AI Companies to Work For
What’s next in Generative AI?
Understanding Generative AI
How Gen AI Knowledge is Tested in Interviews
How Generative AI Works (Without the Jargon)
Generative AI and Hallucinations
Generative AI and Security
Generative AI Evaluation
Bias, Fairness, and Responsible AI
Coming soon
Using Generative AI
How Prompt Engineering is Tested in Interviews
Coming soon
How to Approach Prompt Engineering in Interviews
How to Vibe Code in an Interview
Walkthrough: AI Prototyping
Retrieval-Augmented Generation
Mock Interviews
Coming soon
Unlock full course
Courses
Forward Deployed Engineering Interviews
…
Mock Interviews & Practice
Design System to Improve NYC Traffic
Premium
Raj (FDE, Palantir) answers "Design a system to improve traffic in NYC" in this mock decomposition round.
Next Lesson
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