Salary grades at ESA

Has anybody found that the website is less than clear regarding salaries?

The grade assigned to posts within ESA is determined on the basis of the duties and responsibilities associated with each post, as well as the minimum level of formal qualifications normally required to competently carry out the duties. Posts are classified in the A, L, B or C grade.

The vast majority of posts are A grade and involve either scientific or engineering activities or professional administration relating to law, finance, contracts or administration. Most professional posts are classified in the A2/A4 grade band. Managerial posts at the Division Head level are classified as A5 and Department Heads are A6.

Posts in the L grade are all in the L2/L4 grade band and cover professional translation activities. Those in the grade band B2/B4 or B5/B6 are mainly for secretarial, administrative or technical support activities.

These letters don't mean a lot to me. What I want to know is how well a job pays.

What are the pay scales for engineers at ESA in terms of numbers (GBP, EUR OR USD)?