The first step of Google’s interview process is the resume screen. Here, after you’ve submitted your application through Google’s jobs portal, or been contacted directly via email or LinkedIn, recruiters will evaluate your resume to see if your experience aligns with the open position.
Note: Google does not require cover letters and admits that they “may or may not be considered.” So, unless you have a highly untraditional profile that needs to be explained, we recommend focusing on your resume.
Thankfully, Google has already laid out their own list of tips on how to craft a great resume