Need only to work for 3 years before being eligible for the postgraduate sponsorship, which includes the annual remuneration. But I notice that it is easier to get it if one is working in a technical or specialised position. My friend who works in the hydrography department was sent to Plymouth to study hydrography. For myself, I am currently reading computer science at York. MOH sends many of their healthcare professionals such as pharmacists and physiotherapists for a one year Masters program too.

Do note that the abovementioned scheme is different from the AO scheme, where they would send future senior civil servants to Harvard to study Public Administration or MBA. By the way, i have heard that MBA is reserved for AOs only. So if you happen to work in a finance position, you may consider other options such as Masters in Accounting or Commerce.

So far, only Mindef sends their scientists and engineers for a fully paid for PhD program.

A common profile for the postgraduate recipients is that they are generally in their early 30s (having worked in the civil service for at least 3 years, as mentioned above) and have a decent CEP (aka potential). Most importantly, they have the support of their bosses.