If you can finagle it, try getting into a management position. Sounds like you have plenty of experience to base your campaign off of. You'll be better compensated and have a lot more upwards mobility.
Too many people mistake experience for competence. The OP has "just reached a senior level in a tech career and I've been doing pretty much a bit of everything, e.g. software architecture, full stack dev, eng. related specific dev, consultancy, etc." The question should be: is he actually an expert at anything? If yes, then he has nothing to fear from downturns. If no, he's going to be out of a job in the next downturn.
So should he try for management? Well, if he has no real skill at what he's been doing, a management role where he's unskilled and learning the ropes won't help him.