X has undergone massive change — show you can thrive in a high-speed, lean environment
X under its current structure is fast, lean, and values extreme ownership. The headcount reduction means individuals carry far more scope. They hire people who can move quickly, own outcomes independently, and ship without a lot of process.
How would you design the Twitter/X timeline ranking algorithm?
How do you handle real-time data at the scale of millions of tweets per minute?
Tell me about a time you owned something end-to-end with minimal guidance.
How would you detect and reduce bot activity on the platform?
What would you build to grow X's subscription (premium) revenue?
X values speed and independence — bring examples of shipping fast and owning outcomes.
Real-time systems, distributed databases, and high-throughput APIs are core technical areas.
The culture has shifted significantly — research current leadership direction before your interview.
Premium/subscription product thinking is increasingly important as X diversifies revenue.
Show high agency — they want people who identify problems and solve them without being asked.
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