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Explore questions associated with eBay. Review the source details, then use the workspace for code, notes, and diagrams.
41 questions in the library. A source association does not guarantee a future interview question.
Behavioral and leadership · Coding · Machine learning · ML system design · System design
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Showing 26–41
Companies: eBay, Salesforce
Last reported May 2026
Question: Tell me about yourself
Companies: eBay, Adyen, Amazon, Anthropic +13
Last reported May 2026
Design a card grading submission and tracking system that allows users to submit collectible cards for grading, track the status of their submissions, and receive…
Companies: eBay
Last reported May 2026
Async processing with durable queues, per-channel isolation, retries/DLQ, at-least-once + idempotency, outbox, priorities.
Companies: eBay, Airbnb, Amazon, Autodesk +24
async-processing · idempotency · outbox-pattern · queues
Last reported May 2026
Photo delivery and social feeds: safe publication, celebrity fan-out, stable pagination, and high-volume interactions.
Companies: eBay, Amazon, Bloomberg, Datadog +9
content-delivery · feed-fanout · idempotency · media-storage
Last reported Apr 2026
Design an eBay-like e-commerce platform that allows users to view products, manage shopping carts, place orders, complete checkout, and process purchases.
Companies: eBay, Coupang, Goldman Sachs, Meta +4
Last reported Sep 2025
Given a circular binary array and integer k, count how many contiguous length-k segments are alternating (every adjacent pair within the segment differs). Because of…
Companies: eBay
Array · Sliding Window
Companies: eBay, Amazon, OpenAI
ML Coding · Model Evaluation · Natural Language Processing
High-volume time-series ingestion: bounded cardinality, correct aggregation across retries and rollups, and alerts that distinguish unhealthy services from missing data.
Companies: eBay, Amazon, Atlassian, Datadog +5
aggregation · alerting · backpressure · high-cardinality
Given an m×n binary matrix, find the area of the largest axis-aligned square submatrix that contains only '1's. This is a classic DP problem (m,n…
Companies: eBay, Expedia
Array · Dynamic Programming · Matrix
Find the median of two sorted arrays in O(log(m+n)) time by using binary search to partition the arrays so the left half contains the correct…
Companies: eBay, Amazon, Bloomberg, Goldman Sachs +5
Array · Binary Search · Divide and Conquer
Given a list of intervals, merge all overlapping (including touching endpoints) intervals and return the minimal set of non-overlapping intervals that cover them. Key pattern…
Companies: eBay, Amazon, Antithesis, Apple +16
Array · Quicksort · Sorting
Given an expression "num1+num2", insert a '(' somewhere to the left of '+' and a ')' to the right to minimize the evaluated result —…
Companies: eBay, Meta
Enumeration · String
Given target coordinates (x, y), find the minimum number of knight moves required to reach that square from (0,0) on an infinite chessboard. This is…
Companies: eBay, Google, LinkedIn, Meta +1
A* Search · Bidirectional Search · Breadth-First Search · Heuristic Search
Count the number of index pairs (i, j) with 0 ≤ i < j < n such that nums[i] > 2 * nums[j]; this is…
Companies: eBay
Array · Binary Indexed Tree · Binary Search · Divide and Conquer
Find all integers in a given inclusive range whose adjacent digits differ by exactly 1 (stepping numbers), including single-digit and zero cases. Because the range…
Companies: eBay
Backtracking · Breadth-First Search · Math