Looks like a cool app for making digital resumes. The most important features that I would recommend is to make those profiles discoverable. You can have a discover/explore button which will showcase profiles created in the site. This has to be done by keeping their contact info private.
This is not only for developers...it is also for others..plus this is just a intermediary between your potential recruiter and your portfolio website...there is an option to add a link to your personal website in the app...
It's agnostic toward the how a person wants to hire you...maybe for a full time job...or a someone looking to just pair program or a freelance job...
Plus it is easier to update your profile than change links on your website...