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Activision Blizzard Software Engineer Interview Questions

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

50questions
~7htotal time
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1
CodingStart here. 21 questions · ~179 min
Maximum Sum Contiguous SubarrayEasy
Practice

Use Kadane's algorithm to find the contiguous subarray with the largest sum in linear time.

Dynamic ProgrammingArraysGreedyActivision Blizzard
OOP Core Concepts ExplainedEasy
Recently asked

Explain inheritance, polymorphism, and encapsulation in OOP with Python examples and when to use each.

javaabstractionoopActivision Blizzard
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2
Execution6 questions · ~51 min
Git Version Control at ScaleMedium

Assesses practices for collaboration, branching, and maintaining code quality at scale.

version controlgitTeam ManagementActivision Blizzard
Lost HTTP Update HandlingMedium

Assesses reliability thinking for HTTP-based state updates and failure handling.

httpincident responseActivision Blizzard
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3
Security & Infrastructure8 questions · ~68 min
TCP vs UDPMedium

Tests your understanding of transport-layer behavior and when to use each protocol.

NetworkingActivision Blizzard
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4
System Design5 questions · ~43 min
Room Path Counting Game DesignHard

Evaluates system design and modeling ability for a game-like navigation and counting problem.

Activision Blizzard
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5
Behavioral & Leadership6 questions · ~51 min
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6
More topics4 questions · ~34 min
HTTP Methods and HTTPS SecurityMedium

Evaluates knowledge of HTTP semantics and transport security fundamentals.

Activision Blizzard
Asynchronous Microservices MessagingMedium

Evaluates understanding of event-driven communication patterns and reliability considerations.

microservicesActivision Blizzard
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL Average Selling PriceMedium
Practice
Practice drill

Calculate weighted average selling prices by product using a date-range join, aggregation, and NULL handling.

leetcodesqlCostarCostar Group
SQL Bookstore Schema PracticeEasy
Practice
Practice drill

Use a CTE, joins, and distinct aggregates to calculate Meta Logistics bookstore payment metrics.

sql queriessqlpythonMeta Logistics
SQL Queries for RankingMedium
Practice
Practice drill

Rank active HSBC employees by division and return every employee tied for the highest or second-highest salary.

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