How to make CMS items grouped by category in block?

Hello, can I create structure like this?

I want to have job posts and then in page to display job post category (design, development and so on), and then show listed items. I know I can create this with multi-reference field but it’s not best solution because you have to assign job post to category. Is it somehow possible to have category title inside job list and then display it use it from there?

I checked finsweets CMS nest but not sure if it’s right solution for this.