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Prep plan
Updated weekly · Last refresh Oct 17

Alibaba Group Software Engineer Interview Questions

The questions to prepare for a Alibaba Group Software Engineer interview. Questions from real interview reports rank first. Updated daily.

50questions
~8htotal time
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1
CodingStart here. 12 questions · ~113 min
Design an LRU CacheEasy
Practice

Implement an LRU cache in O(1) average time using a hash table and doubly linked list.

Hash TablesQueueLinked ListsAlibaba Group
Factorial ImplementationEasy
Practice

Compute the factorial of a non-negative integer using an iterative multiplication loop.

CodingBasic Algorithmsfunction implementationAlibaba Group
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2
Execution5 questions · ~47 min
3
System Design11 questions · ~104 min
Recommender System for Online ShoppingHard

Evaluates system design skills for personalization and recommendation pipelines.

Alibaba Group
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4
SQL & Data Manipulation7 questions + 3 drills · ~96 min
5
Security & Infrastructure11 questions · ~104 min
JWT and Concurrency Map DifferencesHard

Assesses security fundamentals and Java concurrency collection knowledge.

jwtconcurrencyAlibaba Group
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6
Behavioral & Leadership3 questions · ~28 min
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7
More topics1 question · ~9 min
Interface vs Abstract ClassEasy

Tests your understanding of core OOP design choices and when to apply each construct.

best practicestechnicaltechnical experienceAlibaba Group
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.