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
Machine Learning Engineer
•
System Design
•
hard
Design LinkedIn's 'People You May Know' (PYMK) recommendation system.
#Recommendation Systems
#Graph Processing
#Scalability
#Machine Learning
Machine Learning Engineer
•
System Design
•
hard
Design the machine learning architecture for LinkedIn's Feed Ranking.
#Recommendation Systems
#Ranking
#Deep Learning
#System Architecture
Machine Learning Engineer
•
System Design
•
hard
Design a Job Recommendation system that matches users to newly posted jobs.
#Recommendation Systems
#Information Retrieval
#NLP
#Two-Tower Models
Machine Learning Engineer
•
System Design
•
hard
Design an Ad Click-Through Rate (CTR) prediction system for LinkedIn Sponsored Content.
#Ads
#CTR Prediction
#Imbalanced Data
#Online Learning
Machine Learning Engineer
•
System Design
•
medium
Design a system to automatically extract and standardize skills from a user's unstructured profile text and resume.
#NLP
#Named Entity Recognition
#Knowledge Graph
#LLMs
Machine Learning Engineer
•
System Design
•
medium
Design a personalized search autocomplete system for the LinkedIn search bar.
#Search
#Trie
#Personalization
#Low Latency
Machine Learning Engineer
•
System Design
•
medium
Design a machine learning system to detect fake profiles and spam accounts at registration.
#Anomaly Detection
#Classification
#Graph ML
#Security
Machine Learning Engineer
•
System Design
•
hard
Design a notification routing system that decides whether to send a notification via Email, Push, or In-App, and at what time.
#Reinforcement Learning
#Contextual Bandits
#Optimization
#User Experience
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.