The process consists of the following steps.
1- Initial interview to learn more about the candidate, in this process they will evaluate your level of English, talk about your experience and your salary expectation
I recommend asking the salary range and about the client
2- Technical interview with a company developer, in this interview they ask you questions about design patterns and you have to create an API with some backend technology and consume an API from a frontend language
3- They will send your profile to the client
If the client likes your profile you can meet with the client, it is good to study about gitflow, devops and some concepts of the technologies you will use