Cardlytics Interview Questions

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Cardlytics Interview Questions

Practice for the Cardlytics interview with these recently asked interview questions.

QuestionTopicDifficulty
SQL
Easy

We’re given two tables, a users table with demographic information and the neighborhood they live in and a neighborhoods table.

Write a query that returns all neighborhoods that have 0 users. 

Example:

Input:

users table

Columns Type
id INTEGER
name VARCHAR
neighborhood_id INTEGER
created_at DATETIME

neighborhoods table

Columns Type
id INTEGER
name VARCHAR
city_id INTEGER

Output:

Columns Type
name VARCHAR
SQL
Easy
SQL
Medium
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Cardlytics Salaries by Position

$104K
$177K
Software Engineer
Median: $130K
Mean (Average): $135K
Data points: 15
$91K
$127K
Data Engineer
Median: $106K
Mean (Average): $109K
Data points: 9
$70K
$103K
Data Scientist
Median: $86K
Mean (Average): $84K
Data points: 5
$56K
$69K
Business Intelligence
Median: $65K
Mean (Average): $63K
Data points: 5
$45K
$74K
Data Analyst
Median: $55K
Mean (Average): $58K
Data points: 7

Most data science positions fall under different position titles depending on the actual role.

From the graph we can see that on average the Software Engineer role pays the most with a $135,415 base salary while the Data Analyst role on average pays the least with a $57,633 base salary.

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