AI Coding Interview Questions
AI-assisted interviews are a fast-growing format where you're allowed — and expected — to use an AI assistant like Cursor, Copilot, or Claude Code during the round, then defend every line it writes. This hub gathers every real, recently reported AI-assisted interview question on PracHub in one place: codebase coding problems, AI-era system design, and machine learning rounds, reported by candidates who interviewed at companies like Meta, Shopify, and Rippling. They look nothing like a traditional LeetCode problem — you're usually dropped into a multi-file repo and asked to fix a bug, ship a feature, and optimize for scale, producing far more code than you'd write by hand. Practicing them builds the skill these rounds actually test: directing the AI, catching what it gets wrong, and defending every decision — not prompting your way to an answer you can't explain. New to the format? Start with our complete AI coding interview guide.
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Debug Watch List Movie Operations
You are given a full-stack Movie DB application. Users can log in, create, update, and delete watch lists, and add or remove movies from a watch list....
Build and Defend a Baseline Model from a CSV
You receive a CSV during a live interview and are asked to build a useful predictive model. You may use code-completion or agent tools, but you must d...
Design a Streaming Job Scheduler
Design and incrementally build a streaming job scheduler: a service (and supporting class) that continuously ingests tasks and dispatches them to work...
Implement and Defend an AI-Assisted Repository Change
Implement a feature in an unfamiliar repository with AI assistance while remaining able to explain and defend every change. Record prompts, respect re...
Handle an AI-Led Screening Interview
Handle an AI-led screening interview that asks about your background, projects, design thinking, and conflict handling. `hint Hint 1 Start by stating ...
Circular Drone Hub Delivery Route
A drone delivery network is laid out as a ring of n hubs, numbered 0, 1, ..., n - 1. Each hub is connected by a direct air corridor to its two neighbo...
Scaling a Collision-Free Rover Fleet to a Million Robots
This system design question evaluates a candidate's ability to scale a stateful, invariant-preserving service across distributed machines, using a sha...
Build a Candidate Search System
This question evaluates the ability to design and implement an end-to-end candidate search system, assessing competencies in information retrieval, ra...
Design Scalable Expense Violation Processing
This question evaluates a candidate's competency in large-scale system design, distributed stateful processing, rule-engine architecture, efficient ru...
Debug and Extend Cursor Queries
You are in an AI-assisted coding interview. You may consult AI-generated suggestions, but you are expected to validate them, explain your reasoning ou...
Build a Payment Fraud Detection Model
This question evaluates a candidate's competency in applied machine learning for payment fraud detection, covering data preprocessing, temporal train/...
Evolve Cursor Pagination Without Breaking Clients
Debug bidirectional cursor pagination when many transactions share the same timestamp, then add amount sorting without breaking old clients. Define st...
Design an AI Gateway
This question evaluates system design competencies for a multi-tenant AI gateway, including architectural design, unified API and authentication patte...
Build an Ollama Eval Harness
Design and implement a lightweight evaluation harness for a language model served locally through Ollama. The harness should: - Read a dataset of eval...
Courier Delivery Cost Tracker
This question evaluates a candidate's ability to design a stateful, multi-part class that combines interval tracking with incremental balance accounti...
Reconcile Records Across Sources
In an AI-assisted ("AI coding") interview round, you are asked to reconcile person records across multiple data sources. Each source contains records ...
Use AI Responsibly During SQL Pair Programming
Prompt The reported pair-programming round included several SQL exercises and explicitly evaluated both collaboration and the candidate's use of AI. T...
Design and Implement an Idempotency Layer for Order Creation
Design an idempotency layer above an order creation service so duplicate client retries do not create duplicate orders. `hint Hint 1 Start by stating ...
Fix the Password Reset Workflow
This question evaluates debugging and software engineering fundamentals around authentication flows, including verification code generation and expiry...
Build a Local URL Shortener
Implement a local URL shortener that runs on a single machine. Design a small library or service with two core operations: - shorten(long_url) -> shor...