7 min read The agent design prompt is now standard in AI and infra loops, and it rewards candidates who reason about tool loops, memory, and failure instead of naming frameworks. Read article
6 min read A quick reference to the read and write caching patterns, eviction policies, invalidation, and stampede fixes that come up in system design interviews. Read article
6 min read The real tradeoffs behind REST, gRPC, and GraphQL, and how to defend your choice when an interviewer pushes back. Read article
7 min read What Vercel’s infrastructure and developer-experience loops actually test, and how they differ from the frontend track most candidates prepare for. Read article
6 min read A round-by-round look at Rippling’s software engineer loop, from the 90-minute build round to the system design questions their team-based hiring tends to ask. Read article
6 min read Mercury runs a work-sample craft round on a Haskell and Elm stack while Brex tests coding plus fintech system design, and prepping for one won’t ready you for the other. Read article
6 min read What Palantir’s decomposition, learning, and forward-deployed rounds actually test, and how the loop differs for Core SWE and FDE candidates. Read article
6 min read A breakdown of the Databricks engineering loop, from the CodeSignal screen through the concurrency round to the distributed-systems design most candidates underprepare for. Read article
7 min read The engineering loop at xAI is mostly small pieces of real infrastructure you build and debug live, from a TTL key-value store to a rate limiter. Read article
6 min read Replit runs a four-to-five round loop built around live product work inside its own editor, with an agent-focused system design round that catches FAANG-prepped candidates off guard. Read article
7 min read Glean’s engineering loop leans on a search-and-retrieval system design round and a two-hour practical build that trips up candidates who only prepped algorithms. Read article
7 min read A round-by-round look at the ElevenLabs engineering loop, why the product decomposition interview decides most offers, and how to prepare for it. Read article
6 min read Coinbase weights its loop toward production-grade pair programming, money-movement system design, and behavioral rounds tied to its operating principles. Read article
6 min read A breakdown of the people, project, and technical rounds in an engineering manager loop, and what interviewers grade in each. Read article
7 min read A chat system design interview is really about delivery guarantees, message ordering, and presence, not the boxes on the whiteboard. Read article
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