Klaviyo Sr. Software Engineer interview questions

Klaviyo's recruiting department is an utter mess. I have been in contact with 5 different recruiters at Klaviyo. All have told me they felt my background is impressive and I would be a good fit for the company, but was not the right fit for their particular role, and they wanted to pass me off to someone else. I have been going around for over 3 months and still have received neither a clear rejection nor any contact with a hiring manager. It's been recruiter after recruiter. The recruiters are not responsive to emails and messages. Twice I have been ghosted, by a recruiter before being reached out to by another. Multiple times it has taken weeks, and several follow up emails, to receive a response to a simple question. One recruiter berated me for applying to multiple positions, as it "makes their job more difficult" and "shows a lack of confidence in any one particular position". Another recruiter suggested that I, with 10 years of senior-level experience, should take a junior level position because I did not have expertise in a particular technology that Klaviyo is using. The interview process with Klaviyo has been insulting and unprofessional, and if it is reflective of their company as a whole, I would recommend staying away at all costs.