Trigger.dev is a developer platform for long-running background work in TypeScript. Jobs keep their state across retries, redeploys and crashes, which suits AI agents and multi-step workflows.

Durable runs - tasks survive restarts and resume instead of starting over.
Scheduling - delayed, recurring and cron-style jobs.
Queues and concurrency - controls for ordering and parallel work.
Human approval - pauses a run until a person confirms a step.
Observability - run history, retries and LLM call tracing.

It suits engineering teams running agents, media processing, email sequences and scheduled tasks that must not lose progress.