The phrase "as a journalist when" is correct and usable in written English.
It can be used to introduce a context or situation related to the experiences or actions of a journalist.
Example: "As a journalist when covering breaking news, I often have to make quick decisions."
Alternatives: "in my role as a journalist when" or "as a reporter when".
"Working as a journalist when Primakov is the editor -- those are two mutually exclusive things".
As a journalist, when something of this kind arrives at your door, what are you supposed to do? Ignore it?
I came up against my own limits as a journalist when I was offered a role in Palestine.
The English writer James Fenton was in Saigon, working as a journalist, when Vietcong troops arrived there in 1975.
Although he worked as a leader writer at both papers, he found his forte as a journalist when the Telegraph sent him to Paris.
His star has faded, and he says he is ready to go back to his old life as a journalist when the Internet gravy train stops.
I remember a time in my former life as a food journalist when all I had to worry about on a school night was whether I'd maximised the free-flowing wine at all the parties I would get invited to.
"I was commenting on the candidates' demeanor, which is what you evaluate as a political journalist when you're watching a debate," said Hume, "and I said Trump looked uncomfortable and out of sorts, and I've forgotten what else.
She was an abandoned 26-year-old single mother working as a jobbing journalist when she met Gilmour.
Keith had his own humble line, insisting the tens of newspapers and radio stations under his control describe him as a "working journalist" when they reported his knighthood in 1933.
A sort of magic-realism memoir by the illustrious Colombian novelist that opens in 1950, with the author surviving as an apathetic journalist when his mother compels him to go with her to his childhood hometown.
