Sent in resume various times but hadn't heard back from a recruiter till I was referred. I sent in resume and cover letter and within 10 days had an initial phone call. No crazy out of the blue questions asked- more just seeing if I could answer questions articulately. Next step they flew me to the office to interview- 3 interviews in 2 hours. Most questions were expected and relevant to the job - but if you're applying to the ads team make sure you do obviously some background research on the ads ecosystem. Lastly, I heard back from them about 2 weeks later that I received the role, and then had 3 start dates to choose from.