03A payments monolith releases monthly and scaling means buying hardware. Design the migration.▼hard★ EssentialNewJPMorgan ChaseRazorpaySAP2 repliesunlockedThe migration question, and the trap is answering with a target architecture. What is being scored is sequencing: how you get there without a rewrite and without a release freeze.Open full answer →
25Search results lag the database by minutes and it costs money. Design the sync, and plan for the day you must rebuild the whole index.▼hardNewLinkedInFlipkartWalmart Global Tech◆ premiumDual-writing from application code is the answer that fails quietly six months in. Change data capture, per-entity ordering, and a reindex you could run on a Tuesday are what interviewers score.Open full answer →
