Depending on your location and interest, there's usually a demand for technical writers/editors, esp. for IT companies. Everyone wants to be the developer/coder, but no one wants to write those user manuals, requirements documents, change manuals, server security manuals, etc.. I tend to describe it as translating Engineerese into English.
Ever wonder why so many users manuals are incomprehensible? Probably because they grab two developers who're not doing anything at the moment and make them write it.
I've worked as a Tech Writer/Editor for 14 of the 19 years I've been with my company. I tend to gravitate to new projects every few years to keep things fresh, but every so often, our client drops me to bring on another developer. When that happens, I usually get a frantic call a month or so later asking if I'll come back to the contract, but by then, I'm already on my new job. I've come to the conclusion no one appreciates a tech writer until you don't have one.