I recently created a little open-source webapp to help searching for a job on hackernews. It allows for filtering based on multiple tags, live text search and allows to create your own regex filter. Dark mode works fine as well now. Have a look at:

https://grburst.github.io/hnjobs

Note that there are a few limitations like only current month is shown and little optimization, but it was already a great help for me, so I am sharing it with you. I will continue to improve it, because it is a fun experience and I am trying out new frameworks I haven't worked with before as well. As always: All feedback is welcome :-)

Enjoy