Archive Block filter page design

I have a "blog" page on my site that is a Job Posting page. I use an archive block to filter the listings from full-time to part-time. 

My issue is when a visitor chooses one of those, the site brings them to a new page I have no design control over. The images are displaying way too large. Is there a way I can access this filtered page? Is there a setting somewhere where I can change the image settings for that page? Is there a custom code someone knows I could use for this? 

You can consider use Filter Plugin (affiliate link), it will filter posts on current page

With your case, you can add this code to Website > Website Tools (under Not Linked) > Custom CSS to resize image

section.blog-image-wrapper img {
    object-fit: contain !important;
}