Top 50
Prep plan
Updated weekly · Last refresh Aug 30

UCLA Software Engineer Interview Questions

The questions to prepare for a UCLA Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

50questions
~7htotal time
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1
CodingStart here. 17 questions · ~151 min
Reconstruct Binary Tree TraversalsMedium
Practice

Rebuild a binary tree from preorder and inorder traversals using recursion and an index map in O(n) time.

RecursionArraysTreesUCLA
Reverse a String in PythonEasy
Practice

Reverse a string in Python using character traversal and return the reversed result.

StringsfunctionspythonUCLA
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2
System Design3 questions · ~27 min
Design Cold Start RecommendationsHard

Design a recommendation system strategy for new users and new items when interaction history is sparse or missing.

Cold StartFeature StoreRecommendation SystemsUCLA
Design Feature Drift Monitoring SystemHard

Design a production ranking system with robust feature drift monitoring across batch and real-time features at high QPS.

Feature StoreFeature DriftModel ServingUCLA
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3
Execution7 questions · ~62 min
Managing a Failed Project PivotHard

Describe how you handled a project that failed or required a major pivot, including stakeholder alignment, trade-offs, and risk management.

Rollback PlanTrade-offsRisk AssessmentUCLA
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4
Pipelines4 questions · ~36 min
Design Near Real-Time Dashboard PipelineHard

Design a streaming pipeline that keeps dashboard data fresh within minutes as source data changes quickly.

InfrastructureStream ProcessingSchedulingUCLA
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5
SQL & Data Manipulation3 questions + 3 drills · ~57 min
6
Behavioral & Leadership14 questions · ~124 min
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7
More topics2 questions · ~18 min
Karaf Uses and ConfigurationMedium

Assesses knowledge of Karaf and practical ability to configure an OSGi-based runtime.

UCLA
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The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.