Top 26
Prep plan
Updated weekly · Last refresh Oct 17

Extend Software Engineer Interview Questions

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

26questions
~4htotal time
Track your progressSign up free to work through all 26 questions and resume where you left off.
Start practicing free →
1
System DesignStart here. 9 questions · ~73 min
Cloud-First System Design CollaborationHard

Assesses collaboration and practical system design decision-making under constraints.

system designteamworkExtend
Ordering System DesignHard

Evaluates system design skills for a core commerce workflow at Extend.

designExtend
More System Design questions with a free account
2
Behavioral & Leadership10 questions · ~81 min
More Behavioral & Leadership questions with a free account
3
More topics7 questions · ~57 min
Technical Stack Familiarity and ConfidenceMedium

Evaluates depth and breadth of technical fundamentals within Extend’s stack.

FrameworksExtend
Testable Lambda ETL PipelineMedium

Tests ability to build maintainable serverless data pipelines with good testing practices.

Data QualityAPIsExtend
Traverse and Manipulate DOMMedium

Tests coding ability to work with nested data structures and DOM traversal logic.

RecursionjavascriptTreesExtend
Optimize Slow Node.js QueriesMedium

Tests performance troubleshooting and optimization techniques for backend services.

APIsperformancequery optimizationExtend
Company Tech Stack Deep DiveMedium

Evaluates alignment with Extend’s engineering choices and relevance to the role.

FrameworksExtend
Parse Catalog to Warranty CategoriesMedium

Tests coding skills for parsing, transformation, and mapping business data to internal models.

parsingStringsData StructuresExtend
More questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 26 questions plus 3 hands-on drills to finish this plan.