Twitter / X
Real-time social platform with petabyte-scale data and ML ranking systems.
4 Rounds
~14 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
Backend Engineer
•
Technical
•
hard
How would you handle a 'Thundering Herd' problem when a celebrity with 100 million followers tweets, and millions of users try to reply or like it simultaneously?
#Concurrency
#Caching
#Load Balancing
Backend Engineer
•
Technical
•
hard
You are tasked with migrating a legacy monolithic service to microservices to reduce compute costs. How do you approach this with zero downtime?
#Microservices
#Migration
#Strangler Fig Pattern
Backend Engineer
•
Technical
•
medium
Discuss the trade-offs between using gRPC vs REST for internal microservice communication at X.
#Networking
#gRPC
#API Design
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.