I've been working at Amazon as a software development engineer for about 4 years now. In that time I have mentored 4 people, and been an onboarding buddy for few more (haven't kept track).
At Amazon, after completing certifications, I have become one of the few people who ensure the security of Amazons applications in the entire company (apart from AWS and few others). I am a GWAPT certified Web Application Penetration Tester as well.
I have also interviewed 35 candidates for my company, and reviewed resumes for a few others.