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
•
medium
Explain how Kafka partitions work. If a consumer group is lagging behind the producer in a timeline ingestion topic, how do you troubleshoot and resolve it?
#Kafka
#Message Queues
#Troubleshooting
Backend Engineer
•
Technical
•
medium
You notice a sudden spike in 503 Service Unavailable errors on the Timeline service. Walk me through your troubleshooting steps.
#Incident Response
#Monitoring
#Debugging
Cloud Engineer
•
System Design
•
hard
How would you design a highly available, multi-region Kubernetes cluster architecture to host X's core microservices?
#Kubernetes
#High Availability
#Multi-region
#Service Mesh
Cloud Engineer
•
System Design
•
medium
Architect a disaster recovery plan for X's core authentication service. How do you ensure RTO (Recovery Time Objective) is under 1 minute and RPO (Recovery Point Objective) is zero?
#Disaster Recovery
#High Availability
#Databases
#Failover
Cloud Engineer
•
Technical
•
hard
How does Kubernetes handle network partitions between nodes? Explain the split-brain scenario and how etcd consensus prevents it.
#Kubernetes
#Distributed Systems
#etcd
#Consensus Algorithms
DevOps Engineer
•
System Design
•
hard
We recently migrated a significant portion of our infrastructure from cloud back to bare-metal to optimize costs. Walk me through how you would architect the automated provisioning of 10,000 bare-metal servers across multiple data centers.
#Bare-metal
#Automation
#PXE
#Ansible
#Data Center
Difficulty Radar
Based on recent AI-sourced data.
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The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
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Think Out Loud
Always explain your thought process before writing code or drawing architecture.