Systems Design Case Study
Event-Driven Job Processing Platform
Building a resilient job execution system for unpredictable, long-running workloads.
The Problem
Synchronous APIs fail when tasks take seconds (or minutes) to complete. Timeouts, retries, and poor UX become unavoidable.
Constraints
- • Variable job duration
- • Retry safety
- • Horizontal scaling
- • Failure visibility
Key Decisions
- • Jobs as first-class entities
- • Idempotent workers
- • Retry-safe execution
- • Event-based state updates
Outcome
- • Reliable execution under load
- • Transparent job state
- • Clean scaling model