What job scheduling tool do you use in your automated workflows/architecture?

we are using our in-house job scheduler.

Valohai has built-in scheduling, as you would expect from a fully-fledged MLOps platform. As it's a platform, you can also integrate any external scheduling tool, which some customers opt for — scheduling their experiments using anything from cron jobs to Airflow pipelines.

 The Oracle Scheduler 

We use Service Now, Microsoft Power Automate and Blue Prism for PRA plus all the usual embedded schedulers like Chron etc

Customer of Microsoft - using LogicApps and PowerAutomate - depending on the task.