I have applied for hundreds of jobs but have not heard back. What am I doing wrong?

For job applications, focus on quality not quantity. While the tools may be available for speed, to stand out from the others doing the same thing, consider tailoring every résumé and cover letter in your application process for those that are a strong fit. 

Study the job description and make sure you are applying for jobs where you match the skills and experience the company is seeking. Use the job description to identify specific skills listed and key words. 

Lastly, either start networking or ramp up your networking as it is often the key to getting past the application to the interview invitation.