[Gustomaximus]

I would assume/hope this means you have a senior role and are well paid. This is not uncommon for members of a leadership team etc to ensure reasonable transition times and stability. Also most employers will show flexibility here in my experience. E.g. A couple of jobs back an employee just requested I be on call for a couple months for the new person should they need help and kept paying my salary just to be available.

That said, if you're a lowly paid shit kicker that would seem wrong as typically a new junior job they want to to start ASAP and wouldn't wait for 3 months. So that could hurt your ability to find new work.

[JoelTheSuperior]

I'm not in a senior role. I do enjoy my job but I'm basically a sole Rails dev - I develop an app that the company offers to clients, which I suspect plays into the long notice period - I suspect they'd have a fair amount of difficulty replacing me.

But yes I suspect that's part of why they have such a long notice period - when I've spoken to recruiters / hiring managers elsewhere they're interested right until the point where they discover I have a three month notice period.

[Gustomaximus]

Then I'd suggest ensure you have some savings together to cover a 'just in case' prolonged search then talk to your employer that you need a better notice period as you keen for something new. Pitch it as this gives to time to find the right job rather than rush off. They might be reasonable. You might even end up with a counter offer that makes you want to stay.

If they won't change, quit on the spot. Then you've got 3 months to find a job.

Edit: Added the pitch it as.