The Scrum Master job description totally cracked me up - Champion agile methodologies, hunt down and eliminate remaining waterfall advocates

Will you be helping with relocation/visa?

Codementor.io solves for exactly this problem

Can you indicate some approximate salary numbers at Booking?

I am not sure if I can, but you can take a look at: https://www.glassdoor.nl/Salarissen/Booking-com-Salarissen-E...

Meteor is my goto for most simple applications. It has packages for auth, account management, and a simple admin UI as well. Will have the CRUD up and running in an hour.