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
DevOps Engineer
•
Technical
•
medium
A user complains that images on X are loading slowly in a specific geographic region (e.g., Southeast Asia). How do you troubleshoot this?
#CDN
#DNS
#Latency
#BGP
#Traceroute
DevOps Engineer
•
Technical
•
hard
Explain the TCP 3-way handshake. How would you tune TCP parameters on a Linux kernel to handle millions of high-throughput, low-latency connections?
#TCP/IP
#Linux Kernel
#Sysctl
#Networking
DevOps Engineer
•
Technical
•
medium
How does DNS resolution work? Walk me through the steps, and explain how you would configure DNS failover for a global service.
#DNS
#Failover
#Routing
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.