Backend Developer
mediumbackground-jobs-and-workers
How do you design background jobs and worker systems?
Answer
Background jobs offload long-running work from request/response paths.
**Design points:**
- Use a queue, workers, and retry policies
- Ensure idempotency (at-least-once delivery)
- Add DLQs and monitoring (lag, failures)
- Use backoff and rate limits
**Interview tip:** mention job deduplication and visibility timeouts for queue systems.
Related Topics
MessagingScalabilityReliability