I have conflicting feelings about the interview process. It was simple overall + unreasonable system design that they call FE Architecture/design. It actually was system design that required a lot of security knowledge and prior understanding why the company needs that system.

Instead of giving a design question where every engineer might have some level understanding and can express it, they decided to discuss a system that engineers of Marqeta built for that company, but most engineers won't have an experience of even using it.

Coding challenge: simple JS, CSS, HTML task for 2 hours. Simple JS task to get data using an API. Simple CSS test, very basic. Unreasonable system design question. Discussion with a manager (standard questions).