I am currently a medical student (final year) in UK. Planning to return to sg to work as I am peg holder. I am interested in medicine in the long run. I was wondering how difficult is it to get IM residency and what is the job prospects for IM residents? (Noted that AC jobs are tough to get, what happens if an IM resident don't get an AC job or even Sr job at the end of their training? Do they go back to mopex??)

I don't have special interest in any of the subspec, so will be happy to do the less popular subspec (eg gen med) where there are higher chance of getting jobs. I thought of mopex for a few years to find what subspec I like but worried that this will affect my career progression if I enter residency late. (Will already be 27 years old when I return..)

Any advice?