Multiple Background Jobs Redis Queue

Question

I am trying to implement a fast API app in Heroku. A user has the option to send a keyword with the API endpoint. This triggers a background job (web scraping with the keyword). If there are multiple user triggering the job at a similar time I manage this with a Redis Queue.

Right now the jobs get executed sequentially. So the second user has to wait until the first job gets finished. I want to process multiple jobs simultaneously with one heroku dyno. I think the dyno is not running close to full capacity and I don't want to scale my dynos because of costs.

Is this possible to process multiple background jobs with Redis Queue in one heroku dyno?

Thanks for your help!!