In theory you need:
* 5000hrs TT
* Full ATPL
* 3 years in the company
Once you have reached these requirements, your name will be presented during a selection meeting.
In case your performance was good during line checks and recurrents ( rating 4 and above on 5), no reports where risen against you by a colleague/cabin crewor rostering dept etc you will be allowed to ....
do one week command preparation course. Useless course if you are somewhat of a professional pilot knowing what your job is about.
Once this course is done, and the instructors rate you OK, you can.....
Start 5 command assesment flights with management pilots. This is a bottleneck as there is so much training going on allready etc...
Then....THE COMMAND INTERVIEW! Depending if the management likes you or not, you will have to answer a panel of interviewers. This can be very easy if they like you or could rasemble an inquisition in case you did something to displease the starts and stripes! A bit like playing roulette this one!
If all these hurdles are taken, and you have passed them all, your name will be presented to the CEO himself for approval. You better where not spotted in cabin crew accomodation if you want to pass this one!
So now , finally, you have made it this far. By now, if you had previous experience, you will be 4 years in the company!
Now they have to find you a training slot on the respective fleet you will be put on. Most probably the A320. This will take a couple of months as well.
By the time you finish line training you will be at least 4.5 years in the company. This time will only become longer as many many FOs are allready in front of you if you would join now!
So thats the optimistic way of looking at it....anywhere between 4 and 8 years if you join now!
Bond for upgrade: 30000USd or 3 years!
Good luck!