background-job

Orchestrates robust background job implementation with hard gates: design job with idempotency strategy and error classification (transient→retry, permanent→discard) → TDD implementation where test MUST fail before code → configure retry_on/discard_on strategies → test failure scenarios covering idempotency/retry/error handling → production monitoring; phases design→TDD→retry config→failure testing→monitoring. Use when adding async processing, implementing background jobs, or configuring job queues. Trigger: background job, async processing, sidekiq, solid queue, active job, job queue, worker.