Design a professional networking domain model covering members and profiles (experience/education), connection requests and undirected connections, and posts with comments and reactions, enforcing symmetric connections, no self-connection, unique pending requests, and profile-edit authorization.
Design a professional networking platform: members have profiles with experience and education, connect with each other via a request-and-accept handshake, and publish posts that others comment on and react to. Connections are mutual. Start by clarifying scope and the core objects.
Work in the provided coding workspace while explaining your decisions to the live interviewer. Validation may use inline tests, examples, comments, or a verbal walkthrough.
Practice this problem in the live coding workspace while the interviewer probes your clarification, implementation, trade-offs, and validation.
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