Groupon Software Engineer Interview Questions
The questions to prepare for a Groupon Software Engineer interview. Questions from real interview reports rank first. Updated daily.
Group strings that are anagrams using a hash map keyed by character-frequency signatures.
GrouponImplement an LRU cache with constant-time get and put operations using a hash map and doubly linked list.
GrouponExplain polymorphism, inheritance, abstraction, and encapsulation, including how Java resolves overridden methods at runtime.
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Assesses end-to-end system design for real-time services and secure OTP generation.
GrouponAssesses performance troubleshooting and pragmatic system design under fixed constraints.
GrouponEvaluates event handling, debouncing logic, and client-server interaction design.
GrouponEvaluates understanding of hashing, collisions, and implementation details.
GrouponAssesses SQL fundamentals and ability to craft correct queries.
GrouponCompute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.
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RTX
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CatalinaCalculate daily campaign conversion rates with conditional aggregation, a CTE, and a campaign dimension join.
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