Questions
Status
Page view counterEasyDesignDesignEasy25 minNightly sales rollup for a store chainEasyDesignDesignEasy25 minSignup funnel events for a mobile appEasyDesignDesignEasy30 minHourly and daily rollups for smart thermostatsEasyDesignDesignEasy25 minExperiment report for a pricing page testEasyDesignDesignEasy30 minKubernetes metrics collectionMediumDesignDesignMedium35 minMulti-source order consolidationMediumDesignDatabricks styleDesignDatabricks styleMedium40 minDesign a job orchestration systemMediumDesignDatabricks styleDesignDatabricks styleMedium40 minReverse-ETL to operational platformsMediumDesignSalesforce styleDesignSalesforce styleMedium40 minSlowly changing dimensionsMediumDesignSnowflake styleDesignSnowflake styleMedium35 minLakehouse micro-batch compactionMediumDesignDatabricks styleDesignDatabricks styleMedium35 minIncremental extraction with deletesMediumDesignDatabricks styleDesignDatabricks styleMedium35 minScheduled remindersMediumDesignDesignMedium30 minFile processing pipelineMediumDesignDesignMedium40 minDesign a cold-storage observability systemMediumDesignSnowflake styleDesignSnowflake styleMedium40 minShort-link redirect and analyticsMediumDesignDesignMedium35 minChange-data-capture sync pipelineHardDesignShopify styleDesignShopify styleHard45 minTrending topics with velocity detectionHardDesignMeta styleDesignMeta styleHard45 minPersonalized send-time optimizationHardDesignSpotify styleDesignSpotify styleHard50 minContent artwork optimization and convergenceHardDesignNetflix styleDesignNetflix styleHard45 minPrometheus metrics backendHardDesignUber styleDesignUber styleHard45 minCentralized log aggregationHardDesignDesignHard40 minDistributed time-series query engineHardDesignSnowflake styleDesignSnowflake styleHard45 minEdge telemetry aggregationHardDesignDesignHard40 minLatency percentile aggregationHardDesignDesignHard40 minClickstream lakehouse upsertsHardDesignDatabricks styleDesignDatabricks styleHard50 minPostgres CDC to warehouseHardDesignDatabricks styleDesignDatabricks styleHard50 minWarehouse fact-dimension joinsHardDesignSnowflake styleDesignSnowflake styleHard45 minDatabase and event atomicityHardDesignDesignHard45 minPipeline migration validationHardDesignDatabricks styleDesignDatabricks styleHard50 minCompaction I/O starves foreground readsHardDesignMeta styleDesignMeta styleHard45 minCDC to lakehouse pipelineHardDesignDatabricks styleDesignDatabricks styleHard45 minLakehouse ACID with concurrent writesHardDesignDatabricks styleDesignDatabricks styleHard40 minMulti-tenant warehouse isolationHardDesignSnowflake styleDesignSnowflake styleHard40 minResumable schema migrationHardDesignDatabricks styleDesignDatabricks styleHard45 minCross-orchestrator data SLAHardDesignDatabricks styleDesignDatabricks styleHard40 minCompute isolation for noisy neighborsHardDesignSnowflake styleDesignSnowflake styleHard50 minOnline schema migrationHardDesignMeta styleDesignMeta styleHard40 minNetwork flow telemetry collectorHardDesignCisco styleDesignCisco styleHard45 min