System Design

Design a system for real-time processing of user authentication requests.

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2 answers published. Last candidate submission on Mar 4 2026, 12:07am PDT. Interview question asked to Software Engineers, Engineering Managers, Production Engineers and other roles interviewing at Onfido, Fitbit, BlackBuck and other companies. Original question asked: Design a system for real-time processing of user authentication requests.. Question last reported by a candidate interviewing at Gupshup for a Machine Learning Engineer interview on Jul 29 2026, 8:50am PDT.