Firstly, ANA Cargo do not operate out of AMS, but there sister company NCA do, and I assume that you are refering to them.
The contract is through Parc aviation and all details can be obtained through their website
www.parcaviation.ie For info, they are a fantastic company to work for and probably one of the best contracts out there. The initial course is in Tokyo, and the period depends on your past ratings, but normally about 5 months