Professional networking platform with rich data and ML-driven recommendations.
4 Rounds
~21 Days
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 Engineer
•
Coding
•
medium
Given a list of nested integers, return the sum of all integers in the list weighted by their depth. For example, given the list {{1,1},2,{1,1}}, return 10.
#Depth-First Search
#Recursion
#Arrays
Data Engineer
•
Coding
•
easy
Given an array of strings representing words and two distinct words, find the shortest distance between these two words in the list.
#Arrays
#Two Pointers
Data Engineer
•
Coding
•
medium
Write a function to find all LinkedIn connections of a specific user up to the Nth degree. You are given an API getConnections(userId) that returns a list of direct connections.
#Graphs
#Breadth-First Search
#Queues
Data Engineer
•
Coding
•
medium
Given an array of intervals representing active user sessions on LinkedIn, merge all overlapping intervals to find the total continuous active time.
#Sorting
#Arrays
#Intervals
Data Engineer
•
Coding
•
medium
Given a non-empty list of job search keywords and an integer K, return the K most frequent keywords. Sort the result by frequency from highest to lowest, and alphabetically for ties.
#Hash Table
#Heap
#Sorting
Data Engineer
•
Coding
•
medium
Given a binary tree representing a company's organizational chart, write a function to find the lowest common manager (Lowest Common Ancestor) of two given employees.
#Trees
#Recursion
#Depth-First Search
Data Engineer
•
Coding
•
medium
Implement an LRU (Least Recently Used) Cache. This is often used in data engineering to cache frequent database lookups.
#Data Structures
#Hash Table
#Linked List
Data Engineer
•
Coding
•
medium
Given an array of integers `nums` sorted in ascending order (with distinct values), and a target integer `target`, write a function to search `target` in `nums`. If `target` exists, then return its index. Otherwise, return -1. The array might be rotated at an unknown pivot.
#Binary Search
#Arrays
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.