My Twitter experience:

Applied, rejected within a day, got an email from a hiring manager four weeks later asking me to re-apply, very sorry etc etc, bad screener he had to look over everything again.

I re-apply, two interviews, asked to do a presentation and then a video on strategic threats to the org, spent two days of my holiday doing it (tight schedule from Twitter), sent, no reply for two weeks, get an email back saying they wanted it to be more tactical.

I pointed out what they said (it needs to be strategic), they come back two weeks later, very sorry etc, they would love to move me to next stage, one week later hiring manager doesn't turn up for interview, two days later apologises, asks me to meet with his senior manager in two weeks. I agree.

Recruiter then turns around and says, sorry not what they are looking for. No other explanation. Next day emails me asking would I apply for another position. I say, "Hmmm not so sure. Perhaps. What's the comp?" He says "Great, I think you will fit well. I will go check it." Then ghosted...

Was a cool role. But still. I'm in a position were I am also interviewing the people on the other side of the table. I'd love to have helped build something they needed about that fusion and analysis.

But sorry, in that context, just not good enough. That's my first dealing with your company. Why should I trust anything else will be better?

Hahaha Twitter in Seattle at least is infamous for experiences like this from my acquaintances and friends. I somehow got into an on-site there once only to find that the team I’m interviewing for doesn’t unit test anything or write any Scala, they’re not familiar with consistent hashing, and a bunch of other curious things that contradict what I had been told about the job and the company.

contact their head of hr/recruitment.

I took an offer elsewhere. Twitter would have been fun as Mudge was invoked with that team.