There are things that you can do to boost your profile if you like a role
You don't need to apply for a role on the platform - once you have been matched an employer will review profiles and shortlist anyone who they want to take forward. They will contact you if you have been selected. (Also see Connections: https://knowledge.dayonework.com/knowledge-base/how-do-talent-seekers-contact-me)
There are other ways you can show your interest in a role:
1) Press 'Like' from the Opportunity page
2) Qualifying questions; if an employer has asked a question or assigned an activity as part of the job posting, you will this from 2 places:
Your dashboard:
Within the job posting:
Enter the opportunity and at the top of the page will be the question you need to answer. Only the employer can see the answers you provide
If you have already done the activity they have assigned to the role then great, you are one step ahead and you don't need to do it again. They will be able to see your results when reviewing your profile