Recruiters claim that an astonishing 50% of people applying for a given job are not even qualified! Also, most large companies use talent-management software to screen resumes, which weeds out another huge percentage.
Most people never hear back because:
-You really aren’t qualified
-You haven’t keyword-optimized your resume
-Your resume isn’t formatted properly
-Your resume is substantially different from your online profile
-The company received 500 resumes for one job posting, and yours was 499th in.