The interview process is composed of a first phone screening plus a sample project (that should be delivered with more than enough time )
In the phone screening, the recruiter gets more insights about your profile to see if you're a good fit for the offered position.
Once your work was evaluated, you have a 3-steps technical interview.
In the first one, you have to explain your work and will receive some comments about it.
The second step is networking-related, just normal questions that every engineer must know.
The last step is about resolving a hypothetical failure in a certain service. The interviewer evaluates your approach to the problem and your framework.