It's 100% possible if you're Singaporean.

If you're not then I don't know. It depends on whether your work VISA allows it or not and whether your company will let you do so or not.

Some companies won't let their employees do it even if they're legally allowed to. ( work visa permits it or they are Singaporeans )

If you need to live overseas for a few years... I can tell you right now, there's 0 chance you will be able to do this. It's a no brainer... why would any company hire you, who can't come to the local office for years?

They might as well just outsource the role to someone else for a much lower pay. ( Which is what they do btw )