Top 6
Prep plan
Updated weekly · Last refresh Sep 22eBay Full Stack Engineer Interview Questions
The questions to prepare for a eBay Full Stack Engineer interview. Questions from real interview reports rank first. Updated daily.
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Technical FundamentalsStart here. 3 questions · ~24 min
HashSet and Custom ObjectsMedium
Evaluates understanding of hashing, equals/hashCode contracts, and collection behavior.
eBayPromises and Event Loop in Node.jsMedium
Assesses understanding of asynchronous JavaScript, microtasks, and event loop scheduling.
node.jseBay
eBayBrowser URL Resolution PathMedium
Tests knowledge of client-server lifecycle, networking, DNS, TLS, and HTTP.
eBay2
More topics3 questions · ~24 min
Algorithm for Random Ad RecommendationsHard
Evaluates algorithm design, randomness, balancing exploration/exploitation, and performance considerations.
system architectureeBay
eBayRobust and Maintainable CodeMedium
Evaluates coding discipline, edge-case handling, and maintainability practices.
maintainabilityedge caseseBay
eBayAds Platform CRUD DesignHard
Tests system design skills with emphasis on data models, APIs, and scalability for ad tech use cases.
system architectureeBay
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