League inc. Interview Questions

Written by IQ Team

Reviewed by Jay Feng

Published March 27, 2026

Estimated reading time: 5 minutes

league inc. is the future of health. the new personal health platform is designed to help people live healthier, happier lives -- every day. with mobile ios, android and web apps, league connects people with the best preventative health professionals. from easily booking and paying for services, tracking and sharing personal health information, and connecting with a vibrant health provider community league offers people a trusted destination to manage their health. league.com

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Data Structures & Algorithms

(79)

SQL

(60)

Machine Learning

(53)

Probability

(31)

Statistics

(21)

Check your skills...
How prepared are you for working at League inc.?

Practice for the League inc. interview with these recently asked interview questions.

Question	Topic	Difficulty
Impossibly Iterative Fibonacci	Data Structures & Algorithms	Easy
Write a function `fib` which takes an integer `n` and returns the nth fibonacci number. For this question, `fib` MUST be recursively defined. Note: `for` and `while` keywords are disabled for this question, as well as `functools`. Any workarounds around this restriction is prohibited. Example: Input: `n = 4` Output: `def fib(n) -> 3 # the sequence is [1, 1, 2, 3, 5, 8...]` View Question Show Solution
Empty Neighborhoods	SQL	Easy
2nd Highest Salary	SQL	Easy

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Calculate Moving Average	SQL	Easy
Predict Customer Churn	Machine Learning	Medium
A/B Test Significance	Statistics	Medium
Optimize Query Performance	SQL	Hard
Feature Importance Analysis	Machine Learning	Medium
Clean Missing Data	Python	Easy
Neural Network Architecture	Deep Learning	Hard
Calculate Cohort Retention	SQL	Medium
Bayesian Probability	Statistics	Easy
Recommend Similar Products	Machine Learning	Hard

View all League inc. questions

Software Engineer

$83K

$154K

Product Manager*

$95K

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 $108,025 base salary while the Product Manager role on average pays the least with a $95,000 base salary.

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