PgQueuer – A PostgreSQL job queue that works without PostgreSQL

PgQueuer transforms PostgreSQL databases into fast, reliable background job processors without requiring separate message brokers or additional infrastructure. The Python package leverages PostgreSQL's built-in LISTEN/NOTIFY feature for instant job notifications and FOR UPDATE SKIP LOCKED for efficient worker coordination, allowing teams to add background job processing to existing PostgreSQL setups. Key capabilities include batch operations, rate limiting, deferred execution, cron-like scheduling, and real-time job tracking, all backed by familiar database ACID guarantees and tooling.