As Daysleeper says it sounds like what I was put through about 4 years ago...
Nothing too onerous in Aptitude test, as I remember them:
Initial Assesment:
English Comprehension
General Knowledge/Mental Maths (mostly aviation based probs)
Psychometrics
Group exercises - problem solving. Find solution to a couple of problems, but they're more interested in your interaction than actually solving the prob.
Recall for:
Interview. Pleasant chat, a few not very technical qus. not 757 specific (then!). Usual thing, know something about DHL, and have a few qus of your own for them.
10 min presentation. Topic given in advance. Allowed to use OHP.
Recall for:
757 Sim. Some sent to BA Cranebank, some to LTN at Flight Safety Boeing.
SID, STAR, ILS. Simple SOPs all hand flown, no flight directors. SOPs, Plates and Pitch/Thrust setting sent in advance.
Telephone call next day, and still there!
Outsourced JOT Course on 757 at Cranebank followed by type rating at BA Flight Training.
Salaries as described. 3 year 'low time' pay scale starting at £29k-ish increasing by about 5k yr on yr to normal f/o scale in yr4.
Roster pretty good.
At present 2 choices. Variable trip lengths/days off, or 9 on 5 off depending on which suits your own lifestyle. Relatively easy to commute from any where in EU. Just about only short haul job you can do this with.
Rostering dept best in business, and have already had Nov roster for several days - something the rest of the business will have to wait until the middle of next month to receive. They tend not to mess with start and finish days, although whats published for each trip may not happen, but that doesnt really matter as once you're away, where you sleep is largely irrelevant. Hotels are mostly very good.
As a low time pilot this is NOT a job in which to build hours (av 300pa) although normally do 3-4 sectors a night so relative experience grows rapidly. Night hours not an issue, as all flying is done in the the dark!
Good luck and hope all this helps.
PS Low timers have included CAP509ers, Mod Coursed, those with 1000hrs+ FI, and some with SSTRs