Top 50
Prep plan
Updated weekly · Last refresh Oct 17

Catalyst Labs Software Engineer Interview Questions

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

50questions
~8htotal time
Track your progressSign up free to work through all 50 questions and resume where you left off.
Start practicing free →
1
SQL & Data ManipulationStart here. 5 questions + 1 drill · ~60 min
2
Coding15 questions · ~150 min
Check If Two Strings Are AnagramsEasy
Practice

Determine whether two strings are anagrams using frequency counting in linear time.

Hash Tablestime complexityStringsCatalyst Labs
Longest Unique Substring in EnoMedium
Practice

Use a sliding window and hash map to find the longest substring without repeated characters in a string.

Hash TablesStringsTwo PointersCatalyst Labs
More Coding 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
3
Execution8 questions · ~80 min
Design a Scalable ApplicationEasy

Explain how you would design a scalable application, including trade-offs, risks, stakeholder needs, and how you define success.

Trade-offsRisk AssessmentScope ManagementCatalyst Labs
More Execution questions with a free account
4
System Design3 questions · ~30 min
Familiar Software Design PatternsMedium

Tests your knowledge of design patterns and when to apply them.

design patternsCatalyst Labs
More System Design questions with a free account
5
Technical Fundamentals3 questions · ~30 min
Entity and Interface FundamentalsMedium

Assesses practical understanding of object-oriented constructs without relying on memorized vocab.

interview processCatalyst Labs
More Technical Fundamentals questions with a free account
6
Behavioral & Leadership15 questions · ~150 min
More Behavioral & Leadership questions with a free account
7
More topics1 question · ~10 min
Cloud Services ExperienceEasy

Tests your practical experience with cloud infrastructure and services.

InfrastructureToolsCatalyst Labs
The finish line: interview-readyComplete all 50 questions plus 1 hands-on drill to finish this plan.