System Design

Build a multi-feature messaging app like WhatsApp.

Also asked as "Design a messaging system like WhatsApp."

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1 answer published. Last candidate submission on Apr 28 2026, 11:13pm PDT. Interview question asked to Engineering Managers, Production Engineering Managers, ML Engineering Managers and other roles interviewing at Renew Power, Nokia, Glovo and other companies. Original question asked: Build a multi-feature messaging app like WhatsApp.. Question last reported by a candidate interviewing at Snowflake for a Machine Learning Engineer interview on Jul 26 2026, 1:49pm PDT.