System Design AI

Guided practice

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Classic designs 4

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SchedulingClear filters

11. Design a Container Orchestrator
Reconcile desired workloads, schedule containers and recover from failed nodes safely.
ClassicHard
Distributed systems AWS Control plane
+6
etcd Isolation Kubernetes Orchestration Reconciliation Scheduling
Worked design
Practice
39. Design a Calendar System
Google Calendar-style events with recurrence, RSVPs and on-time reminders, using CDC for change notifications and a delay queue for reminders.
ClassicMedium
Caching Queues Databases
+5
Calendar Change data capture Notifications PostgreSQL Scheduling
Worked design
Practice
45. Design a Job Scheduler
Run 10,000 jobs a second within two seconds of their time, at least once, with retries, fairness between tenants and exactly-once effects.
ClassicMedium
Queues Databases AWS
+5
Cron DynamoDB Idempotency Scheduling Amazon SQS
Worked design
Practice
102. Design a GPU Cluster Scheduler for Training Jobs
Thousands of GPUs shared by many teams: gang admission, topology-aware placement, quotas with lending, checkpointed preemption and failure recovery.
ClassicMedium
AI infrastructure AWS GPUs
+2
Kubernetes Scheduling
Worked design
Practice

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