Top 50

Prep plan

Updated weekly · Last refresh Aug 30

Calix Software Engineer Interview Questions

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

50questions

~7htotal time

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1

SQL & Data ManipulationStart here. 3 questions + 3 drills · ~54 min

SQL Multi-Table Data ExtractionMedium

Tests your ability to write correct SQL joins and filters across multiple tables.

sqldata extraction

Java, Spring Boot, MySQL BasicsMedium

Tests breadth of Java, Spring Boot, and MySQL knowledge for backend development.

javamysqlspring boot

Calix

SQL Average Selling PriceMedium

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

Running 30-Day Active Users SQLMedium

Calculate rolling 30-day distinct OnStar users using a deduplication window function and date-range aggregation.

Window Functionssql

General Motors (GM)

Average Citation Count by TimeMedium

Calculate each paper's citation count and the average across Elsevier-indexed papers in a date range using a window function.

Window Functionssql

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2

System Design4 questions · ~32 min

System Design and DSAMedium

Evaluates ability to design systems and implement algorithmic solutions.

system designData Structures

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3

Coding7 questions · ~56 min

Big O NotationEasy

Assesses ability to reason about time and space complexity.

Calix

Fibonacci and Linked List CodingMedium

Tests core data structures and algorithm implementation skills.

Calix

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4

Security & Infrastructure12 questions · ~96 min

CCM Packets SourceMedium

Evaluates understanding of networking control-plane behavior and implementation details.

Calix

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5

Execution3 questions · ~24 min

Robot Framework UsageMedium

Assesses your test automation experience and practical usage of Robot Framework.

Automation

Calix

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6

Behavioral & Leadership20 questions · ~160 min

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7

More topics1 question · ~8 min

Handling Data SkewnessMedium

Assesses performance troubleshooting and strategies for uneven data distributions.

data skewnessdata processing

Calix

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