Build an AI Agent Task Queue with Resumability Premium
Design an agent execution framework that handles long-running tool calls, persists agent state so tasks can be paused and resumed across server restarts, enforces token and cost caps, and supports parallel sub-agent execution.
Build a Blue-Green Deployment System Premium
Design a deployment system that can switch 100% of production traffic from the old version to the new version in under 30 seconds and roll back instantly if error rates spike.
Build a Certificate Authority and Automated TLS Cert Rotation Premium
Design an internal PKI system that issues TLS certificates to 10,000 services, automates renewal before expiry, and distributes updated certs without requiring service restarts.
Build a Chaos Engineering Platform Premium
Design a controlled failure injection platform that safely introduces latency, packet loss, and resource exhaustion into production services, enforces blast radius limits, and automatically halts experiments when SLOs degrade.
Build a CI/CD Pipeline Orchestrator Premium
Design a system that handles 10,000 concurrent build and test jobs, assigns them to workers, streams logs in real-time, and ensures no job is lost even if a worker crashes mid-run.
Build a Concurrent Device Session Manager Premium
Design a session enforcement system that limits streaming to N concurrent devices per subscription plan, kicks the oldest session when the limit is exceeded, and works correctly across distributed servers.
Build a Distributed Cron Job Scheduler Premium
Design a cron scheduler that guarantees exactly-once execution of jobs across a cluster of nodes, handles missed executions during downtime, and scales to millions of scheduled tasks.
Build a Distributed Inventory Reservation System Premium
Design an inventory system that prevents overselling across 50 regional warehouses, reserves stock for a checkout session with a TTL, and releases reservations automatically if payment is not completed.
Build a Distributed Key-Value Store Premium
Design a distributed KV store that partitions data using consistent hashing, replicates each key across N nodes for durability, and handles node failures with tunable consistency guarantees.
Build a Distributed Lock Manager and Leader Election Service Premium
Design a distributed coordination service that provides mutual exclusion across a cluster, implements lease-based locks that expire on node failure, and enables leader election for singleton workloads.