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Propose a high-level design for a data lake that supports data ingestion from various sources and formats.

Have you ever had a new hire not work out as planned, and if so, what did you learn from the experience?

Can you tell me about a time when you had to use your presentation skills to influence someone’s opinion and what steps did you take?

How do you plan for team size and skill set mix, and how did your approach change as your team grew from 10s to 100s?

Develop a system for recommending products on an e-commerce site.

Would you share with me an instance where you were faced with a difficult situation at work and how you resolved it? How would you manage it if you were to face a similar issue at IronSource?

Design a platform for multiplayer online gaming in real-time.

What are the key considerations when designing a highly available distributed configuration store?

Construct a platform for real-time analysis of mobile app performance metrics.

Can you give me a concrete example of a time when building a relationship with someone was a challenge and what you did to overcome it? How would you tackle building a relationship with a challenging stakeholder at IronSource?