Questions
Status
Streaming enrichment joinsHardDesignDatabricks styleDesignDatabricks styleHard40 minGlobal secondary index geo-partitioned dataHardDesignAmazon styleDesignAmazon styleHard50 minLow-latency HLS edge deliveryHardDesignDisney styleDesignDisney styleHard45 minWebRTC SFU for game spectatingHardDesignAmazon styleDesignAmazon styleHard50 minCloud gaming session orchestrationHardDesignNvidia styleDesignNvidia styleHard50 minMulti-CDN steering and failoverHardDesignNetflix styleDesignNetflix styleHard45 minGame replay renderingHardDesignDesignHard45 minDelayed message deliveryHardDesignAmazon styleDesignAmazon styleHard45 minMulti-priority job queueHardDesignDesignHard45 minDead-letter queue replayHardDesignDesignHard50 minOrdered fan-out at scaleHardDesignDesignHard50 minWebhook delivery with backpressureHardDesignStripe styleDesignStripe styleHard50 minMulti-consumer CDC with schema evolutionHardDesignDatabricks styleDesignDatabricks styleHard50 minStream partition rebalancingHardDesignDatabricks styleDesignDatabricks styleHard45 minMassive livestream commentsHardDesignMeta styleDesignMeta styleHard45 minContent-based pub-sub brokerHardDesignDesignHard45 minDesign stateful windowed stream aggregationHardDesignDatabricks styleDesignDatabricks styleHard50 minLog broker storage layerHardDesignDesignHard50 minNotification preferences fan-outHardDesignDesignHard45 minMedia transcoding pipelineHardDesignNetflix styleDesignNetflix styleHard45 minEnd-to-end encrypted messagingHardDesignMeta styleDesignMeta styleHard55 minBatch job barrier coordinatorHardDesignDatabricks styleDesignDatabricks styleHard45 minWebsocket fan-out gatewayHardDesignMeta styleDesignMeta styleHard50 minWebhook delivery networkHardDesignStripe styleDesignStripe styleHard45 mingRPC backpressure ingestionHardDesignGoogle styleDesignGoogle styleHard45 minSecondary index serviceHardDesignAmazon styleDesignAmazon styleHard45 minE2E encrypted messaging at scaleHardDesignMeta styleDesignMeta styleHard50 minPush notification gatewayHardDesignApple styleDesignApple styleHard45 minWebhook delivery with orderingHardDesignStripe styleDesignStripe styleHard45 minLive stream ingest and distributionHardDesignGoogle styleDesignGoogle styleHard50 minReal-time game matchmakingHardDesignDesignHard45 minSMS carrier routing gatewayHardDesignDesignHard45 minWebhook delivery queue isolationHardDesignStripe styleDesignStripe styleHard45 min
Session storeEasyDesignDesignEasy25 minPassword reset by email linkEasyDesignDesignEasy25 minAccess rules for a school grade bookEasyDesignDesignEasy25 minSigned webhooks for an invoicing APIEasyDesignDesignEasy25 minEncrypting answers on a clinic intake formEasyDesignDesignEasy30 minLog ingest with PII redactionMediumDesignCapital One styleDesignCapital One styleMedium35 minEnterprise dashboarding backendMediumDesignDesignMedium35 minMulti-device session managementMediumDesignNetflix styleDesignNetflix styleMedium35 minOAuth 2.0 authorization serverMediumDesignGoogle styleDesignGoogle styleMedium40 minAPI key management and revocationMediumDesignStripe styleDesignStripe styleMedium35 minRBAC with delegationMediumDesignServiceNow styleDesignServiceNow styleMedium35 minSession revocation across stateless serversMediumDesignDesignMedium40 minOAuth consent and scope managementMediumDesignGoogle styleDesignGoogle styleMedium40 minTeam file sharingMediumDesignDesignMedium35 minAPI key issuance and revocationMediumDesignStripe styleDesignStripe styleMedium40 minPasswordless authenticationMediumDesignApple styleDesignApple styleMedium40 minCAPTCHA challenge serviceMediumDesignGoogle styleDesignGoogle styleMedium35 min