[1] De Alwis started his career as a journalist, serving as a war-time reporter.
He thereafter moved into advertising, working as a copy writer with Reggie Candappa at Grant McCann Erickson.
[2] In 1970, when the United National Party was defeated, De Alwis resigned as permanent secretary and established his own advertising company, De Alwis Advertising Company.
In 1994 he was appointed Governor of the North Western Province by President Wijethunga and served until 1995.
This article about a politician from North Western Province, Sri Lanka is a stub.