How makers stay productive

Those aren't good keywords. They are too generic. You'll get traffic looking for regular jobs, like baby sitters or people willing to be cashiers at fast-food restaurants.

You should be including phrases related to start-up and technology, and making them required with a +. You can start by including positions or technologies.

examples +"React native" jobs +javascript jobs +"python" job openings

This will save you from wasting tons of $$.

If you are targeting by location you don't need to include the location in the keyword, as its already implied. But, if you want your click-thru rate and conversion rate to be higher, you should include the City and State/Province of the person searching in the ad copy, and on your landing page. However, this kind of optimization can come later.

Because job boards are essentially 2 sided marketplaces, you also need to think about how you will attract businesses who need these roles filled. So you'll need another ad group that targets decision-makers. (and you should have a dedicated landing page for them as well, which captures their email address to market to them later)

examples +hire +"react native" developer +hire +javascript post +javascript jobs +javascript job board