Questions
Status
Real-time global leaderboardMediumDesignDesignMedium40 minReal-time engagement featuresMediumDesignAmazon styleDesignAmazon styleMedium40 minNear-duplicate media detectionMediumDesignGoogle styleDesignGoogle styleMedium40 minShadow deployment for fraud modelsMediumDesignStripe styleDesignStripe styleMedium40 minMobile game leaderboardMediumDesignDesignMedium30 minFull-text search for docsMediumDesignDesignMedium40 minReal-time leaderboardMediumDesignDesignMedium35 minE-commerce recommendation shelfMediumDesignAmazon styleDesignAmazon styleMedium45 minVector search with metadata filterMediumDesignOpenAI styleDesignOpenAI styleMedium45 minChurn prediction batch pipelineMediumDesignNetflix styleDesignNetflix styleMedium35 minSemantic search with filtersMediumDesignAmazon styleDesignAmazon styleMedium35 minAutomated model retrainingMediumDesignDatabricks styleDesignDatabricks styleMedium35 minCold-start recommendationsMediumDesignAirbnb styleDesignAirbnb styleMedium35 minLive-comments during eventsHardDesignAmazon styleDesignAmazon styleHard45 minPodcast home feedHardDesignSpotify styleDesignSpotify styleHard55 minVacation rental rankingHardDesignAirbnb styleDesignAirbnb styleHard55 minReal-time personalization serviceHardDesignAmazon styleDesignAmazon styleHard50 minSponsored search rankingHardDesignAmazon styleDesignAmazon styleHard55 minCart recommendationsHardDesignAmazon styleDesignAmazon styleHard50 minVideo feed ranking servingHardDesignGoogle styleDesignGoogle styleHard45 minFeature store with point-in-time correctnessHardDesignUber styleDesignUber styleHard45 minModel monitoring without ground truthHardDesignCapital One styleDesignCapital One styleHard40 minEmbedding model migration zero-downtimeHardDesignAmazon styleDesignAmazon styleHard45 minSparse-traffic model serving platformHardDesignAmazon styleDesignAmazon styleHard45 minReal-time feature aggregationHardDesignUber styleDesignUber styleHard45 minDesign in-session personalization at scaleHardDesignNetflix styleDesignNetflix styleHard45 minMultimodal joint embedding alignmentHardDesignGoogle styleDesignGoogle styleHard45 minReal-time fraud scoringHardDesignStripe styleDesignStripe styleHard50 minETA predictionHardDesignGoogle styleDesignGoogle styleHard50 minPersonalized video feed rankingHardDesignGoogle styleDesignGoogle styleHard50 minLearning-to-rank feature assemblyHardDesignAmazon styleDesignAmazon styleHard50 minRecommendation feed generation and rankingHardDesignMeta styleDesignMeta styleHard50 minMulti-objective ranking with tunable weightsHardDesignMeta styleDesignMeta styleHard50 minANN index updates and deletesHardDesignOpenAI styleDesignOpenAI styleHard50 minSequential recommendations at scaleHardDesignMeta styleDesignMeta styleHard45 minHome page module rankingHardDesignNetflix styleDesignNetflix styleHard45 minPoint-in-time feature correctnessHardDesignStripe styleDesignStripe styleHard50 minMulti-model serving platformHardDesignOpenAI styleDesignOpenAI styleHard45 minDrift detection and auto-retrainHardDesignWalmart styleDesignWalmart styleHard45 minEmbedding version migrationHardDesignMeta styleDesignMeta styleHard50 minReproducible regulated model trainingHardDesignCapital One styleDesignCapital One styleHard45 minStreaming windowed aggregationsHardDesignPayPal styleDesignPayPal styleHard50 minGPU-shared model cold startHardDesignOpenAI styleDesignOpenAI styleHard45 minOnline feed ranking updatesHardDesignMeta styleDesignMeta styleHard50 minMonitoring with delayed ground truthHardDesignCapital One styleDesignCapital One styleHard45 minETA prediction serviceHardDesignGoogle styleDesignGoogle styleHard50 minVideo scene search and indexingHardDesignGoogle styleDesignGoogle styleHard50 minLive competitive game leaderboardHardDesignDesignHard45 minSocial feed rankingHardDesignMeta styleDesignMeta styleHard55 minFeature store online and offlineHardDesignUber styleDesignUber styleHard55 min