Apple
Consumer electronics, software, and services leader known for secrecy and quality.
5 Rounds
~30 Days
Very Hard
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Data Scientist
•
Coding
•
easy
Given an array of integers representing hourly battery drain percentages from an iPhone, write a function to find the maximum sum of a contiguous subarray of size exactly K.
#Sliding Window
#Arrays
#Python
Data Scientist
•
Coding
•
medium
Write a Python function to compute the cosine similarity between two sparse vectors representing user app download histories. The vectors are represented as dictionaries where keys are app IDs and values are download counts.
#Math
#Hash Maps
#Python
Data Scientist
•
Coding
•
medium
Given a list of strings representing user search queries in the App Store, write an algorithm to group anagrams together. For example, ['listen', 'silent', 'apple', 'elppa'] should return [['listen', 'silent'], ['apple', 'elppa']].
#Strings
#Hash Maps
#Sorting
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
SimulateUnwritten Rules
Think Out Loud
Always explain your thought process before writing code or drawing architecture.