If you are over 50, it will be much harder to find work at same or better level. This is why STT employees get a bad reputation of being stagnant in their careers and rather lazy. There are lots of posts on here talking about 5-7 years being the absolute most you should have at a company so you are not regarded as someone who can't adapt to change or who just wants to coast at a job, if you have over 15 years at one company, HR won't even consider you, no matter how much you 'grew' in your role, because everyone in the industry knows, more than 5 years at STT and you are a dud. I know a lot of people over age 45 who cannot find quality work. The media won't report that the private sector is not hiring.
good luck.