I applied online. The process took two weeks.

• First step: phone screening.
• Second step: take-home project.
• Third step: systems design interview.

I spent almost ten hours on this process, only to not receive any feedback. Ironically, after investing all that time and being rejected without feedback, they sent me three messages asking me to fill out a form providing feedback about the process. It seems they may value their time more than the applicant's.

There was a standard math operations take-home project, and a system design project to communicate with Visa.