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Forward Deployed Engineering Interviews

FDE Introduction

Welcome to the Forward-Deployed Engineer Interview Prep Course!The FDE Interview Process

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

What are Decomposition Questions?How to Answer Decomposition Questions Rubric for Decomposition Questions

Design Sync System Between Employee Record Systems Design System to Improve NYC Traffic Design Field CatalogComing 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 LimiterNew Movie Recommendation APINew Key-Value Store with TTLNew Parse CSV TransactionsNew Image Processing Pipeline Debug API Errors in ProductionNew Debug Loyalty Points SystemNew

Behavioral Questions for Forward-Deployed Engineers

Introduction to Behavioral Questions Avoiding Downleveling Approaching the 3 Question Types How to Answer Customer Interaction Questions Answering Customer Interaction Questions Without Experience

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

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

Pushing Back on Clients, End-to-End Technical Wins, Cross-Functional Work Why FDE?Coming soon Challenging DeploymentComing soon Customer Pushing Scope of WorkComing soon Customer Feedback to Core Product ImprovementComing 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

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 Design a URL Shortener Design Instagram Design Twitter Design the Reddit Homepage

Event-Driven and Pub/Sub Architectures Design a Distributed Message Queue Design Webhook Delivery Design Uber Eats

Async Jobs and Workers Design a Web Crawler Design a Job Scheduler Design App that Downloads User Data

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 Design Ticketmaster Design a Hotel Booking System Design a Parking Garage

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 Design Facebook Messenger Design WhatsApp Design Chess.com Design Slack Design Google Docs

Media Streaming and Content Delivery Design YouTube Design Netflix Design TikTok Design Twitch

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

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

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

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

Understanding Big O Notation Analyzing Time Complexity Analyzing Space Complexity Optimizing Your Algorithms

Introduction to Coding Patterns

Two Pointer Prefix Sum Tortoise & Hare Sliding Window Two Pass Bit Manipulation Cyclic Sort

Move Zeros to End of Array

Merge Intervals

Product of Array Except Self

Copy a Spiral Matrix

Maximum Subarray Sum

Container with Most Water

Trap Rain Water

Contiguous Subarray Sum

Difference of Arrays

Smallest Missing Integer

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

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 Graph Search

Degrees of Friendship

Sentence Similarity

Number of Islands

Rotting Oranges

Course Schedule

Redundant Connection

Trees Balanced Tree

Diameter of a Tree

Validate Binary Search Tree

Construct Binary Tree

Lowest Common Ancestor of a Binary Tree

Find Largest Smaller BST Key

BST Successor Search

Stacks Queues Min Stack

Reverse a Sentence

Valid Parentheses

Daily Temperatures

Shortest Cell Path

Conversion Ratios

Linked Lists Reverse Linked List

Linked List Cycle

Merge Sort Doubly Linked List

Merge Linked Lists

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 Fibonacci Numbers

Generate Parentheses

Flatten a Dictionary

Build a Calculator

Combination Sum

Implement Promise.all()

Build a Basic Regex Parser

Dynamic Programming Climbing Stairs

Knapsack Problem

List the Difference Between Two Strings

Partition Equal Subset Sum

Generative AI Interviews

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?

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 AIComing soon

How Prompt Engineering is Tested in InterviewsComing soon How to Approach Prompt Engineering in Interviews How to Vibe Code in an Interview Walkthrough: AI Prototyping Retrieval-Augmented Generation

Unlock full course

Forward Deployed Engineering Interviews

FDE Introduction

Welcome to the Forward-Deployed Engineer Interview Prep Course!The FDE Interview Process

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

What are Decomposition Questions?How to Answer Decomposition Questions Rubric for Decomposition Questions

Design Sync System Between Employee Record Systems Design System to Improve NYC Traffic Design Field CatalogComing 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 LimiterNew Movie Recommendation APINew Key-Value Store with TTLNew Parse CSV TransactionsNew Image Processing Pipeline Debug API Errors in ProductionNew Debug Loyalty Points SystemNew

Behavioral Questions for Forward-Deployed Engineers

Introduction to Behavioral Questions Avoiding Downleveling Approaching the 3 Question Types How to Answer Customer Interaction Questions Answering Customer Interaction Questions Without Experience

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

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

Pushing Back on Clients, End-to-End Technical Wins, Cross-Functional Work Why FDE?Coming soon Challenging DeploymentComing soon Customer Pushing Scope of WorkComing soon Customer Feedback to Core Product ImprovementComing 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

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 Design a URL Shortener Design Instagram Design Twitter Design the Reddit Homepage

Event-Driven and Pub/Sub Architectures Design a Distributed Message Queue Design Webhook Delivery Design Uber Eats

Async Jobs and Workers Design a Web Crawler Design a Job Scheduler Design App that Downloads User Data

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 Design Ticketmaster Design a Hotel Booking System Design a Parking Garage

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 Design Facebook Messenger Design WhatsApp Design Chess.com Design Slack Design Google Docs

Media Streaming and Content Delivery Design YouTube Design Netflix Design TikTok Design Twitch

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

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

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

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

Understanding Big O Notation Analyzing Time Complexity Analyzing Space Complexity Optimizing Your Algorithms

Introduction to Coding Patterns

Two Pointer Prefix Sum Tortoise & Hare Sliding Window Two Pass Bit Manipulation Cyclic Sort

Move Zeros to End of Array

Merge Intervals

Product of Array Except Self

Copy a Spiral Matrix

Maximum Subarray Sum

Container with Most Water

Trap Rain Water

Contiguous Subarray Sum

Difference of Arrays

Smallest Missing Integer

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

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 Graph Search

Degrees of Friendship

Sentence Similarity

Number of Islands

Rotting Oranges

Course Schedule

Redundant Connection

Trees Balanced Tree

Diameter of a Tree

Validate Binary Search Tree

Construct Binary Tree

Lowest Common Ancestor of a Binary Tree

Find Largest Smaller BST Key

BST Successor Search

Stacks Queues Min Stack

Reverse a Sentence

Valid Parentheses

Daily Temperatures

Shortest Cell Path

Conversion Ratios

Linked Lists Reverse Linked List

Linked List Cycle

Merge Sort Doubly Linked List

Merge Linked Lists

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 Fibonacci Numbers

Generate Parentheses

Flatten a Dictionary

Build a Calculator

Combination Sum

Implement Promise.all()

Build a Basic Regex Parser

Dynamic Programming Climbing Stairs

Knapsack Problem

List the Difference Between Two Strings

Partition Equal Subset Sum

Generative AI Interviews

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?

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 AIComing soon

How Prompt Engineering is Tested in InterviewsComing soon How to Approach Prompt Engineering in Interviews How to Vibe Code in an Interview Walkthrough: AI Prototyping Retrieval-Augmented Generation

Unlock full course

How to Win the LangChain Deployed Engineer Interview

Premium

Stephen (Deployed Engineer, LangChain, ex-Google) shows you why communication and storytelling can make or break your interview, and how to nail the project-based round by demoing real value.

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