Chirpy Pilot
I am not sure about E170 but in general, responding back to applicants is a sign of serious need of experience such as yours. Once they get your application they will call you for 3-4 days screening. it consists 50 questions of ATPL and 10 questions general knowledge written tests, panel interview, and medical check. Some 4 weeks later they inform candidates the result. You must get employment visa from Saudi Embassy in your country of citizenship, not country of residence. Plan ahead. Obtaining medical report for the embassy may take time.
Best of luck!