If you are really desperate, you could try to A/B test the process. Optimize a site/profile for one application at a time. If they're looking for a front-end pr

If you are really desperate, you could try to A/B test the process. Optimize a site/profile for one application at a time. If they're looking for a front-end programmer, be that 100% and casually mention you also have experience in the other fields. Backend? Be that. Write the bio for that, show examples of that, quotes od clients regarding that... Right now you try to check all the boxes and you're getting compared to people who fit the job 100%. Just my 2 cents. By the way, your site feels rather un-personal and cold. How about adding at least a picture, a short bio, a bit of design and emotion?