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Updated weekly · Last refresh Oct 17

Zoom Communications Software Engineer Interview Questions

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

50questions
~7htotal time
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1
System DesignStart here. 5 questions · ~40 min
Design and Implement a CacheHard
Recently asked

Tests system design and implementation ability for caching strategies and tradeoffs.

implementationZoom Communications
Improve Zoom Website UXHard
Recently asked

Evaluates product thinking and UX improvement approach for Zoom Communications.

user experiencedesign processZoom Communications
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2
Coding24 questions · ~194 min
Multithreading and OOP PatternsMedium
Recently asked

Tests multithreading fundamentals, OOP understanding, and practical design pattern knowledge.

multithreadingdesign patternsoopZoom Communications
Graphs and Dynamic ProgrammingMedium
Recently asked

Assesses graph and DP problem-solving strategies and implementation skill.

Dynamic ProgrammingGraphsZoom Communications
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3
Security & Infrastructure11 questions · ~89 min
TCP/IP and UDP HandshakeMedium
Recently asked

Evaluates networking fundamentals and protocol-level understanding.

NetworkingprotocolsZoom Communications
SIP Session Timer PurposeMedium
Recently asked

Tests understanding of SIP session management and protocol behavior.

session managementZoom Communications
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4
Behavioral & Leadership7 questions · ~57 min
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5
More topics3 questions · ~24 min
SQL Rank vs Row NumberMedium
Recently asked

Tests ability to choose correct window functions and reason about ties and ordering.

queriessqlZoom Communications
Customer Request Issue TriageMedium
Recently asked

Tests debugging, triage, and customer-focused problem solving.

Problem SolvingZoom Communications
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Second Highest Without AggregatesHard
Practice
Practice drill

Find the second highest salary in each department without using aggregate functions.

SubqueriesRankingSelf-JoinsCredit GenieDevoteamCisco Restaurant + Bar
SQL for Renewal PerformanceMedium
Practice
Practice drill

Aggregate monthly renewal outcomes by segment and owner, calculating conversion and churn rates with PostgreSQL joins and CTEs.

Date FunctionsGroup ByCase WhenZoom Communications
LeetCode SQL and AlgorithmsEasy
Practice
Practice drill

Summarize SQL and algorithm practice in a structured response field.

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