Design homepage viewport rendering with deduplication

Company: Netflix

Role: Software Engineer

Category: System Design

Difficulty: medium

Interview Round: Technical Screen

Quick Answer: This question evaluates system architecture and backend–client design competencies, including viewport-based fetching, cross-module deduplication, pagination/continuation tokens, caching and storage strategies, personalization and experimentation integration, and observability for low-latency, high-QPS services in the System Design domain.