Phone interview where they asked some basic Javascript questions to see I had a good understanding of the language. Then a technical test where they gave me an API endpoint that served some data about Greek gods, and I was asked to implement a simple UI that allowed a user to query the endpoint, filter the data, and display an error if no data was returned. It was quite straight forward, but you can go all out and make it as flashy looking as you want. You can use any UI framework you like. Then a full interview with two senior engineers where they ask you to talk about your previous experience and what you worked on.