Typically, an employer or recruiter will type in certain keywords that match the job they’re hiring for. If your resume has the appropriate keywords and meets other parts of the search criteria (such as level of education, years of experience, location, etc.), your profile will appear in an employer’s search results. The employer can then read your resume and contact you if they are interested in speaking to you about a role. Since resume sites rely heavily on keyword searches, it’s important to optimize your resume with the right keywords. To make sure you have the best chance of being contacted, your resume profiles should also be 100% complete. Most platforms will give you pointers or indicators as to how strong or complete your profile is as you’re filling it out.