Recruiters do not always look for candidates for a single position. They generally try to hire for several positions at the same. Therefore, they may not always know the details of every position as much as the hiring manager does. Instead, they only know the basics and use certain keywords to look for candidates. As a result, your resume should be optimized and include the right keywords to be visible on search engines and career websites.
There are different keywords for every type of position. For example, if you are a web developer, you can list the programming languages you know as keywords or if you are an accountant, you can list your professional certifications as keywords.
