Dataford
Dataford
Top 50
Prep plan
Updated weekly · Last refresh Oct 17

Brex Software Engineer Interview Questions

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

50questions
~11htotal time
Track your progressSign up free to work through all 50 questions and resume where you left off.
Start practicing free →
1
CodingStart here. 17 questions · ~223 min
Card Affordability CheckEasy
Practice
Recently asked

Determine whether a Brex rewards card can be purchased using matching gems and limited wild gems.

function implementationBrex
Purchase Adds Card If AffordableEasy
Practice
Recently asked

Atomically purchase a Brex card by checking catalog availability, balance, and updating player state.

function implementationBrex
More Coding questions with a free account
2
System Design17 questions · ~223 min
Design a Banking IntegrationHard
Recently asked

Evaluates system design thinking for integrating with banking/payment infrastructure.

business requirementsBrex
Capacity Planning: Machines NeededMedium
Recently asked

Tests capacity planning and reasoning about scaling and resource requirements.

InfrastructurescalabilityBrex
More System Design questions with a free account
3
SQL & Data Manipulation9 questions + 3 drills · ~148 min
SQL: Count TransactionsEasy
Recently asked

Assesses ability to reason about SQL queries and data counting tasks.

aggregationBrex
Suspicious Entries Similarity QueryHard
Recently asked

Assesses SQL/data manipulation skills for similarity matching and threshold logic.

Brex
Calculate 30-Day User RetentionHard
Practice
Practice drill

Use CTEs, joins, and date filtering to calculate 30-day retention by signup cohort from login and feature usage data.

Window FunctionsDate FunctionsAggregationsCurefitIndeedTikTok
Weekly Signup Cohort RetentionHard
Practice
Practice drill

Calculate weekly retention by signup cohort using CTEs, joins, date truncation, and distinct user counts.

Window FunctionsDate FunctionsAggregationsBrexPostmaneToro
Find Onboarding Funnel Drop-OffMedium
Practice
Practice drill

Use joins, CTEs, and aggregations to find the onboarding step with the largest user drop-off.

Window FunctionsDate FunctionsAggregationsRipplingConvoyBrex
More SQL & Data Manipulation questions with a free account
4
Behavioral & Leadership5 questions · ~66 min
More Behavioral & Leadership questions with a free account
5
More topics2 questions · ~26 min
API Data Processing PipelineMedium
Recently asked

Tests pipeline design and iterative refinement under changing requirements.

data processingBrex
Tell Me About YourselfEasy
Recently asked

Deliver a concise introduction that connects your experience, Solutions Architect strengths, and interest in the University of Cincinnati.

Success CriteriaExecutionRoadmappingBrex

Sign up to see every question

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

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