I applied for the job online and a few days later received an automated email telling me to sign up for a third-party interview.

Took a video conference call (where the video portion didn't work, so we just spoke on the phone) with the third party. Developed some code with an interviewer. Received an automated rejection a few days later.

Never once spoke to an employee at Flatiron about the company or my background.

Third parties ask some great practical questions involving skeleton code and implementing some features. For example, implement a function that, when given a 2D array of 1's and 0's, returns the width, height, and starting points of a rectangle (being represented by 1's).