What is an applicant tracking system (ATS) and how will that change/affect my resume

Resume Tips
#1

What is an applicant tracking system (ATS) and how will that change/affect my resume?

#2

It is shortlisting tool used by companies to filter the suitable candidates. There are certain skills that companies look for, system shortlist the candidates as per the skills fed in it. Resumes may be ranked according to the data fed in it. To make ATS friendly resume, you should add right keywords. Mention the important information at the top so increase chances of shortlisting.