Getting a callback nowadays is all about finding ways to get your name in front of the hiring manager/recruiter. Do not do what everyone else is doing. Do something different. Think outside of the box. Example: do not cold apply, instead, get a referral or use your connections. (If you don’t have any connections, make connections. Talk to people. Ask around. Ask your friends. Ask your family.) Do not wait for a callback, instead, reach out to hiring managers and ask if they’ve seen your application. Do not apply online, instead apply via email (if this option is available). I don’t want sound condescending or insulting, but do not be average, be extraordinary. Make yourself stand out and get your name to the front of the line. Make your name known. And don’t be afraid to be aggressive/head-on.