Not so straight forward.
You need to decide if you want to fly for Singapore based Airlines or other foreign based airlines. To fly for Singapore based airline as a Singaporean, you need CAAS pilot licence. If you are Singaporean, went to the USA and obtain a FAA pilot licence, you are not considered qualified.
There are flight schools that issue CAAS accredited licence but generally speaking, Singapore airlines prefer you go through their cadet pilot program.
Obviously for foreign pilots with FAA licence and few thousand hours, this does not apply to them.
I felt a lot of such professional jobs have very high bar in costs to be certified and also the qualifications made it anti competitive, this can also be said for legal or medical field to practice in sg.
the correct way is to get certified overseas, in this case get the overseas pilot qualifications, work overseas then if you want to come back, you are well qualified.
the answer is the authority has already considered that and most won’t return to work so effectively they either look for 3rd world or reserve the lucrative ones for their own.
a disgrace if you ask me, shutting paths for many with skills and dreams but no $$$. Nope those 1 or 2 CSR cadets in the class don’t count.