If I am right in thinking that "senior dev" means individual contributor, I'd suggest trying to go the other way and become a manager/team lead.

That way, you can delegate much of the hands on and time consuming reactive, break/fix, late night and on-call stuff, and just train people up, handle occasional escalations, set strategy and direction, etc. What's more, they'll think you are a very good manager since you focus so much on helping your team grow, training them, etc, etc.