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Behavioral and leadership · Coding · Machine learning · ML system design · Practical engineering · Product and business · System design
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Analyze the tradeoffs of virtual cards for customers, businesses, and technical implementation, then evaluate transactions against provided approval rules, and debug code logic…
Companies: Capital One
Last reported Nov 2026
Given a mock monolithic system, evaluate the pros and cons of the current monolithic approach and propose alternative architectures (such as microservices or event-driven…
Companies: Capital One
Last reported Oct 2026
Companies: Capital One, Amazon, Oracle
Last reported Oct 2026
Question: Tell me about yourself
Companies: Capital One, Adyen, Amazon, Anthropic +13
Last reported Oct 2026
Companies: Capital One
System Design
Last reported Oct 2026
Design a banking system that allows users to create accounts, manage funds (deposits, withdrawals, transfers), check account balances, and perform core banking operations securely.
Companies: Capital One, Anchorage Digital, PayPal, Revolut
Last reported Sep 2026
Companies: Capital One
System Design · System Design Fundamentals
Last reported Sep 2026
Design a credit card system that allows users to apply for cards, make transactions, manage payments, and track their spending and account balances.
Companies: Capital One, eBay
Last reported Sep 2026
Companies: Capital One, Amazon, Microsoft, Pinterest +2
Last reported Sep 2026
Companies: Capital One, Bloomberg, Buildops, Lockheed Martin +2
Last reported Sep 2026
Companies: Capital One, Amazon, Bloomberg, Microsoft +3
Last reported Sep 2026
Companies: Capital One, Spotify
Last reported Sep 2026
Companies: Capital One
System Design
Last reported Sep 2026
Traverse the m×n matrix in clockwise spiral order (right, down, left, up) and return the elements in that sequence. The core challenge is managing changing…
Companies: Capital One, Liveramp, Meta, Microsoft +1
Array · Matrix · Simulation
Last reported Sep 2026
Design a scalable banking application that allows users to manage multiple accounts with full CRUD operations, ensuring ACID compliance and security while optimizing for…
Companies: Capital One
Last reported Sep 2026
In two parts: first, implement a simple Bank class supporting deposit, withdraw, and transfer operations with account validation. Then, extend the class to track account…
Companies: Capital One
Last reported Sep 2026
Design a Bank class that maintains 1-indexed account balances and supports transfer, deposit, and withdraw operations; each operation must validate account indices and (for…
Companies: Capital One, Coinbase, Okta, OpenAI +1
Last reported Sep 2026
Companies: Capital One
System Design
Last reported Aug 2026
Design an in-memory hierarchical file system that supports path parsing and operations like mkdir, ls, addContentToFile (append/create), and readContentFromFile, requiring you…
Companies: Capital One, Anchorage Digital, Coupang, Datadog +5
Design · Hash Table · Sorting · String
Last reported Jul 2026
Describe a situation where you were faced with multiple competing priorities at the same time. How did you decide what to focus on, and what…
Companies: Capital One, CrowdStrike, Google, Meta
Last reported Jul 2026
Design a payment system that processes transactions through an external payment service for approval/denial, holds approved amounts, and batches all transactions daily for…
Companies: Capital One, Adyen, Agoda, Amazon +5
Last reported Jul 2026
Implement an in-memory hierarchical file system that supports createPath(path, value) — which should succeed only if the immediate parent path exists and the path is…
Companies: Capital One, Anchorage Digital, Google, Uber
Last reported Jun 2026
Companies: Capital One
Last reported Jun 2026
Companies: Capital One, Adyen, Airbnb, Amazon +31
Last reported Jun 2026
Companies: Capital One, Adyen, Amazon, Anthropic +37
Last reported Jun 2026