7 min read What Is a Speech-to-Text Service? A speech-to-text (STT) service, also called automatic speech recognition (ASR), converts audio input into a […] Read article
6 min read What Is a Multimodal Search Service? A multimodal search service allows users to search using multiple input modalities simultaneously or […] Read article
7 min read What Is a RAG Pipeline? Retrieval-Augmented Generation (RAG) is an architecture that improves LLM output quality by retrieving relevant documents […] Read article
8 min read What Is an AI Content Safety Service? An AI content safety service filters and classifies text (and other modalities) produced […] Read article
6 min read Problem Statement Design a scalable IoT data ingestion service that handles millions of connected devices sending sensor readings, events, and […] Read article
6 min read Problem Statement Design a telemetry pipeline that collects metrics from thousands of services and infrastructure nodes, applies sampling and aggregation, […] Read article
2 min read Mention service content See also: Meta Interview Guide 2026: Facebook, Instagram, WhatsApp Engineering See also: Netflix Interview Guide 2026: Streaming […] Read article
9 min read What Is a User Follow Service? A user follow (or subscribe) service manages directed relationships between users: when Alice follows […] Read article
8 min read Problem Statement Design a voting and reaction system that allows users to upvote, downvote, or attach emoji reactions to content […] Read article
11 min read What Is a Search Filter and Faceting Service? A search filter and faceting service enables users to narrow search results […] Read article