We have a few different technologies. For our consumer stock media applications, we use Redis for the job queue and PHP for the job processing. For our contributor portal where video and image content suppliers upload their work for sale in our marketplaces, we use MongoDB for the job queue and Node.js to run the jobs. We also leverage Jenkins for scheduled tasks though I didn’t include that in the 101 diagram.
Reminds me of two great quotes from Blessed John Henry Newman:
“Growth is the only evidence of life.”
“To live is to change, and to be perfect is to have changed often.”