Your question is Real-Time Retail Banking Recommendations. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How would you design a real-time recommendation engine for retail banking clients at Citi?
Clarify the recommendation surface, eligible products or services, personalization goals, and regulatory constraints before proposing an end-to-end design. Address scale assumptions, retrieval, ranking, re-ranking, online and batch inference, evaluation, monitoring, and failure handling.
