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Prep plan

Updated weekly · Last refresh Sep 27

Zynga Software Engineer Interview Questions

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

50questions

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1

CodingStart here. 13 questions · ~161 min

Nth Non-Repeating CharacterMedium

Find the nth non-repeating character in a Zynga game event string using one pass and insertion-ordered hash maps.

Division Without DividingMedium

Practice

Implement truncating integer division using exponential doubling without division or multiplication operators.

Algorithms

Zynga

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2

Execution9 questions · ~112 min

Decipher Undocumented CodebaseHard

Assesses your approach to ramping up on an unfamiliar codebase and driving clarity quickly.

Problem Solving

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3

Security & Infrastructure8 questions · ~99 min

C++ Variable Memory AllocationMedium

Assesses understanding of C++ memory model and its practical implications.

memory managementc++

Zynga

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4

System Design13 questions · ~161 min

Leaderboard for Massive ScaleHard

Evaluates large-scale data modeling, ranking, and performance tradeoffs.

scalability

Zynga

Teen Patti System DesignHard

Evaluates system design skills for a real-time multiplayer game platform.

Algorithms

Zynga

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5

Behavioral & Leadership3 questions · ~37 min

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6

More topics4 questions · ~50 min

Explain Hash Table to a Non-Technical PersonMedium

Assesses clarity of explanation and conceptual understanding of hashing.

Communicationtechnical concepts

Zynga

Hibernate and Database LocksMedium

Assesses understanding of ORM behavior and concurrency control.

Zynga

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min

Second Highest Without AggregatesHard

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

SubqueriesRankingSelf-Joins

Cisco Restaurant + Bar

Optimize a Slow SQL QueryHard

Rewrite a slow PostgreSQL loan payment query to reduce scanned rows while preserving the required aggregated results.

database optimizationJoinsData Wrangling

AmeripriseEEltro Cyberchrome Private

SQL Top Spenders by MonthEasy

Rank TikTok Shop users by monthly spend using joins, aggregation, date truncation, and ROW_NUMBER().

Window FunctionsRankingAggregations

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